MAAP SYNTHESIS #2: PATTERNS AND DRIVERS OF DEFORESTATION IN THE PERUVIAN AMAZON

We present our second synthesis report, building off our first report published in September 2015. This synthesis is largely based on the 50 MAAP reports published between April 2015 and November 2016. The objective is to synthesize all the information to date regarding deforestation trends, patterns and drivers in the Peruvian Amazon.

MAAP methodology includes 4 major components: Forest loss detection, Prioritize big data, Identify deforestation drivers, and Publish user-friendly reports. See Methodology section below for more details.

Our major findings include:

  • Trends. During the 15 years between 2001 and 2015, around 4,448,000 acres (1,800,000 hectares) of Peruvian Amazon forest has been cleared, with a steadily increasing trend. 2014 had the highest annual forest loss on record (438,775 acres), followed by a slight decrease  in 2015. The preliminary estimate for 2016 indicates that forest loss remains relatively high. The vast majority (80%) of forest loss events in the Peruvian Amazon are small-scale (<5 hectares), while large-scale events (> 50 hectares) pose a latent threat due to new agro-industrial projects.
  • Hotspots. We have identified at least 8 major deforestation hotspots. The most intense hotspots are located in the central Amazon (Huánuco and Ucayali). Other important hotspots are located in Madre de Dios and San Martin. Two protected areas (Tambopata National Reserve and El Sira Communal Reserve) are threatened by these hotspots.
  • Drivers. We present an initial deforestation drivers map for the Peruvian Amazon. Analyzing high-resolution satellite imagery, we have documented six major drivers of deforestation and degradation: small/medium-scale agriculture, large-scale agriculture, cattle pasture, gold mining, illegal coca cultivation, and roads. Small-scale agriculture and cattle pasture are likely the most dominant drivers overall. Gold mining is a major driver in southern Peru. Large-scale agriculture and major new roads are latent threats. Logging roads are likely a major source of forest degradation in central Peru.

Deforestation Trends

Image 1 shows forest loss trends in the Peruvian Amazon from 2001 to 2015, including a breakdown of the size of the forest loss events. This includes the official data from the Peruvian Environment Ministry, except for 2016, which is a preliminary estimate based on GLAD forest loss alerts.

Image 1. Data: PNCB/MINAM, UMD/GLAD. *Estimate based on GLAD alerts.

During the 15 years between 2001 and 2015, around 4,448,000 acres (1,800,000 hectares) of Peruvian Amazon forest has been cleared (see green line). This represents a loss of approximately 2.5% of the existing forest as of 2001.There have been peaks in 2005, 2009, and 2014, with an overall increasing trend. In fact, 2014 had the highest annual forest loss on record (386,626 acres). Forest loss decreased in 2015 (386,732 acres), but is still the second highest recorded. The preliminary estimate for 2016 indicates that forest loss continues to be relatively high.

It is important to note that the data include natural forest loss events (such as storms, landslides, and river meanders), but overall serves as our best proxy for anthropogenic deforestation. The non-anthropogenic forest loss is estimated to be approximately 3.5% of the total.1

The vast majority (81%) of forest loss events in the Peruvian Amazon are small-scale (<5 hectares, equivalent of 12 acres), see the yellow line. Around 16% of the forest loss events are medium-scale (5-50 hectares, equivalent of 12-124 acres), see the orange line. Large-scale (>50 hectares, equivalent of 124 acres) forest loss events, often associated with industrial agriculture, pose a latent threat. Although the average is only 2%, large-scale forest loss rapidly spiked to 8% in 2013 due to activities linked with a pair of new oil palm and cacao plantations. See MAAP #32 for more details on the patterns of sizes of deforestation events.

Deforestation Patterns

Image 2 shows the major deforestation hotspots in 2012-14 (left panel) relative to 2015-16 (right panel), based on a kernel density analysis.We have identified at least 8 major deforestation hotspots, labeled as Hotspots A-H.

Image 2. Data: PNCB/MINAM, GLAD/UMD. Click to enlarge.

The most intense hotspots, A and B, are located in the central Amazon. Hotspot A, in northwest Ucayali, was dominated by two large-scale oil palm projects in 2012-14, but then shifted a bit to the west in 2015-16, where it was dominated by cattle pasture and small-scale oil palm. Hotspot B, in eastern Huánuco, is dominated by cattle pasture (MAAP #26).

Hotspots C and D are in the Madre de Dios region in the southern Amazon. Hotspot C indicates the primary illegal gold mining front in recent years (MAAP #50). Hotspot D highlights the emerging deforestation zone along the Interoceanic Highway, particularly around the town of Iberia (MAAP #28).

Hotspots E-H are agriculture related. Hotspot E indicates the rapid deforestation for a large-scale cacao plantation in 2013-14, with a sharp decrease in forest loss 2015-16 (MAAP #35). Hotspot F indicates the expanding deforestation around two large-scale oil palm plantation (MAAP #41). Hotspot G indicates the intensifying deforestation for small-scale oil palm plantations (MAAP #48).

Hotspot H indicates an area impacted by intense wildfires in 2016.

Protected Areas, in general, are effective barriers against deforestation (MAAP #11). However, several protected areas are currently threatened, most notably Tambopata National Reserve (Hotspot C; MAAP #46). and El Sira Communal Reserve (Hotspot B; MAAP #45).

Deforestation Drivers

Image 3. Data: MAAP, SERNANP. Click to enlarge.

Surprisingly, there is a striking lack of precise information about the actual drivers of deforestation in the Peruvian Amazon. According to an important paper published in 2016, much of the existing information is vague and outdated, and is based solely on a general analysis of the size of deforestation events.3  

As noted above, one of the major advances of MAAP has been using high-resolution imagery to better identify deforestation drivers.

Image 3 shows the major deforestation drivers identified thus far by our analysis. As far as we know, it represents the first spatially explicit deforestation drivers map for the Peruvian Amazon.

To date, we have documented six major direct drivers of deforestation and degradation in the Peruvian Amazon: small/medium-scale agriculture, large-scale agriculture, cattle pasture, gold mining, illegal coca cultivation, and roads.

At the moment, we do not consider the hydrocarbon (oil and gas) and hydroelectric dam sectors as major drivers in Peru, but this could change in the future if proposed projects move forward.

We describe these major drivers of deforestation and degradation in greater detail below.

Small/Medium-scale Agriculture

The literature emphasizes that small-scale agriculture is the leading cause of deforestation in the Peruvian Amazon.However, there is little actual empirical evidence demonstrating that this is true.3 The raw deforestation data is dominated by small-scale clearings that are most likely for agriculture or cattle pasture. Thus, it is likely that small-scale agriculture is a major driver, but a definitive study utilizing high-resolution imagery and/or extensive field work is still needed to verify the assumption.

In several key case studies, we have shown specific examples of small-scale agriculture being a deforestation driver. For example, using a combination of high-resolution imagery, photos from the field, and local sources, we have determined that:

  • Oil Palm, in the form of small and medium-scale plantations, is one of the main drivers within deforestation Hotspot B (Ucayali; MAAP #26), Hotspot G (northern Huánuco; MAAP #48), and Hotspot F (Loreto-San Martin;MAAP #16). This was also shown for Ucayali in a recent peer-reviewed study.4 See below for information about large-scale oil palm.
  • Cacao is causing rapid deforestation along the Las Piedras River in eastern Madre de Dios (MAAP #23, MAAP #40). See below for information about large-scale cacao.
  • Papaya is an important new driver in Hotspot D, along the Interoceanic Higway in eastern Madre de Dios (MAAP #42).
  • Corn and rice plantations may also be an important driver in Hotspot D in eastern Madre de Dios (MAAP #28).

Large-scale Agriculture

Large-scale, agro-industrial deforestation remains a latent threat in Peru, particularly in the central and northern Amazon regions. This issue was put on high alert in 2013, with two cases of large-scale deforestation for oil palm and cacao plantations, respectively.

In the oil palm case, two companies that are part of the Melka group,5 cleared nearly 29,650 acres in Hotspot A in Ucayali between 2012 and 2015 (MAAP #4, MAAP #41). In the cacao case, another company in the Melka group (United Cacao) cleared 5,880 acres in Hotspot E in Loreto between 2013 and 2015 (MAAP #9, MAAP #13, MAAP #27, MAAP #35). Dennis Melka has explicitly stated that his goal is to bring the agro-industrial production model common in Southeast Asia to the Peruvian Amazon.6

Prior to these cases, large-scale agricultural deforestation occurred between 2007 and 2011, when oil palm companies owned by Grupo Palmas7 cleared nearly 17,300 acres for plantations in Hotspot H along the Loreto-San Martin border (MAAP #16). Importantly, we documented the additional deforestation of 24,215 acres for oil palm plantations surrounding the Grupo Palmas projects (MAAP #16).

In contrast, large-scale agricultural deforestation was minimal in 2015 and 2016. However, as noted above, it remains a latent threat. Both United Cacao and Grupo Palmas have expansion plans that would clear over 49,420 acres of primary forest in Loreto.8

Cattle Pasture

Using an archive of satellite imagery, we documented that deforestation for cattle pasture is a major issue in the central Peruvian Amazon. Immediately following a deforestation event, the scene of hundreds or thousands of recently cut trees often looks the same whether the cause is agriculture or cattle pasture. However, by using an archive of imagery and studying deforestation events from previous years, one can more easily determine the drivers of the forest loss. For example, after a year or two, agriculture and cattle pasture appear very differently in the imagery and thus it is possible to distinguish these two drivers.

Using this technique, we determined that cattle pasture is a major driver in Hotspots A and B, in the central Peruvian Amazon (MAAP #26, MAAP #37).

We also used this technique to determine that much of the deforestation in the northern section of El Sira Communal Reserve is due to cattle pasture (MAAP #45).

Maintenance of cattle pasture, and small-scale agriculture, are likely important factors behind the escaped fires that degrade the Amazon during intense dry seasons (MAAP #45, MAAP #47).

Gold Mining

Gold mining is one of the major drivers of deforestation in the southern Peruvian Amazon (Hotspot C). An important study found that gold mining cleared around 123,550 acres up through 2012.9 We built off this work, and by analyzing hundreds of high resolution imageres, found that gold mining caused the loss of an additional 30,890 acres between 2013 and 2016 (MAAP #50). Thus, gold mining is thus far responsible for the total loss of around 154,440 acres in southern Peru. Much of the most recent deforestation is illegal due to its occurrence in protected areas and buffer zones strictly off-limits to mining activities.

Most notably, we have closely tracked the illegal gold mining invasion of Tambopata National Reserve, an important protected area in the Madre de Dios region with renowned biodiversity and ecotourism. The initial invasion occurred in November 2015 (MAAP #21), and has steadily expanded to over 1,110 acres (MAAP #24, MAAP #30, MAAP #46). As part of this invasion, miners have modified the natural course of the Malinowski River, which forms the natural northern border of the reserve (MAAP #33). In addition, illegal gold mining deforestation continues to expand within the reserve’s buffer zone, particularly in an area known as La Pampa (MAAP #12, MAAP #31).

Further upstream, illegal gold mining is also expanding on the upper Malinowski River, within the buffer zone of Bahuaja Sonene National Park (MAAP #19, MAAP #43).

In contrast to the escalating situation in Tambopata, we also documented that gold mining deforestation has been contained in the nearby Amarakaeri Communal Reserve, an important protected area that is co-managed by indigenous communities and Peru’s national protected areas agency. Following an initial invasion of 27 acres in 2014 and early 2015, satellite imagery shows that management efforts have prevented any subsequent expansion within the protected area (MAAP #6, MAAP #44).

In addition to the above cases in Madre de Dios, gold mining deforestation is also increasingly an issue in the adjacent regions of Cusco and Puno (MAAP #14).

There are several small, but potentially emerging, gold mining frontiers in the central and northern Peruvian Amazon (MAAP #49). The Peruvian government has been working to contain the illegal gold mining in the El Sira Communal Reserve (MAAP #45). Further north in Amazonas region, there is gold mining deforestation along the Rio Santiago (MAAP #36, MAAP #49), and in the remote Condor mountain range along the border with Ecuador (MAAP #49).

Roads

Roads are a well-documented driver of deforestation in the Amazon, particularly due to their ability to facilitate human access to previously remote areas.10 Roads often serve as an indirect driver, as most of the deforestation directly associated with agriculture, cattle pasture, and gold mining is likely greatly facilitated by proximity to roads. We documented the start of a controversial road construction project that would cut through the buffer zones of two important protected areas, Amarakaeri Communal Reserve and Manu National Park (MAAP #29).

Logging Roads

In relation to general roads described above, we distinguish access roads that are constructed to gain entry to a particular project. The most notable type of access roads in Peru are logging roads, which are likely a leading cause of forest degradation as they facilitate selective logging of valuable timber species in remote areas.

One of the major recent advances in forest monitoring is the ability to quickly identify the construction of new logging roads. The unique linear pattern of these roads appears quite clearly in Landsat-based tree cover loss alerts such as GLAD and CLASlite. This advance is important because it is difficult to detect illegal logging in satellite imagery because loggers in the Amazon often selectively cut high value species and do not produce large clearings. But now, although it remains difficult to detect the actual selective logging, we can detect the roads that indicate that selective logging is taking place in that area.

In a series of articles, we highlighted the recent expansion of logging roads, including the construction of 1,134 km between 2013 and 2015 in the central Peruvian Amazon (MAAP #3, MAAP #18). Approximately one-third of these roads were within the buffer zones of Cordillera Azul and Sierra del Divisor National Parks (MAAP #15).

We documented the construction of an additional 83 km of logging roads during 2016,  (MAAP #40, MAAP #43) including deeper into the buffer zone of Cordillera Azul National Park.

Another major finding is the rapid construction of the logging roads. In several cases, we documented the construction rate of nearly five kilometers per week (MAAP #18, MAAP #40, MAAP #43).

Determining the legality of these logging roads is complex, partly because of the numerous national and local government agencies involved in the authorization process. Many of these roads are near logging concessions and native communities, whom may have obtained the rights for logging from the relevant forestry authority (in many cases, the regional government).

Coca

According to a recent United Nations report, the Peruvian land area under coca cultivation in 2015 (99,580 acres) was the lowest on record (since 2001) and part of a declining trend since 2011 (154,440 acres).11 There are 13 major coca growing zones in Peru, but it appears that only a few of them are actively causing new deforestation. Most important are two coca zonas in the region of Puno that are causing deforestation within and around Bahuaja Sonene National Park (MAAP #10, MAAP #14). Several coca zones in the regions of Cusco and Loreto may also be causing some new deforestation.

Hydroelectric Dams

Although there is a large portfolio of potential new hydroelectric dam projects in the Peruvian Amazon,12 many of not advanced to implementation phase. Thus, forest loss due to hydroelectric dams is not currently a major issue, but this could quickly change in the future if these projects are revived. For example, in adjacent western Brazil, we documented the forest loss of 89,205 acres associated with the flooding caused by two dams on the upper Madeira River (MAAP #34).

Hydrocarbon (Oil & Gas)

During the course of our monitoring, we have not yet detected major deforestation events linked to hydrocarbon-related activities. As with dams, this could change in the future if oil and gas prices rise and numerous projects in remote corners of the Amazon move forward.

Methodology

MAAP methodology has 4 major components:

  1. Forest Loss Detection. MAAP reports rely heavily on early-warning tree cover loss alerts to help us identify where new deforestation is happening. Currently, our primary tool is GLAD alerts, which are developed by the University of Maryland and Google,13 and presented by WRI’s Global Forest Watch and Peru’s GeoBosques. These alerts, launched in Peru in early 2016, are based on 30-meter resolution Landsat satellite images and updated weekly. We also occasionally incorporate CLASlite, forest loss detection software based on Landsat (and now Sentinel-2) developed by the Carnegie Institution for Science, and the moderate resolution (250 meters) Terra-i alerts. We are also experimenting with Sentinel-1 radar data (freely available from the European Space Agency), which has the advantage of piercing through cloud cover in order to continue monitoring despite persistent cloudy conditions
  2. Prioritize Big Data. The early warning systems noted above yield thousands of alerts, thus a procedure to prioritize the raw data is needed. We employ numerous prioritization methods, such as creation of hotspot maps (see below), focus on key areas (such as protected areas, indigenous territories, and forestry concessions), and identification of striking patterns (such as linear features or large-scale clearings).
  1. Identify Deforestation Drivers. Once priority areas are identified, the next challenge is to understand the cause of the forest loss. Indeed, one of the major advances of MAAP over the past year has been using high-resolution satellite imagery to identify key deforestation drivers. Our ability to identify these deforestation drivers has been greatly enhanced thanks to access to high-resolution satellite imagery provided by Planet 14
    (via their Ambassador Program) and Digital Globe (via the NextView Program, courtesy of an agreement with USAID). We also occasionally purchase imagery from Airbus(viaApollo Mapping).
  2. Publish User-Friendly Reports. The final step is to publish technical, but accessible, articles highlighting novel and important findings on the MAAP web portal. These articles feature concise text and easy-to-understand graphics aimed at a wide audience, including policy makers, civil society, researchers, students, journalists, and the public at large. During preparation of these articles, we consult with Peruvian civil society and relevant government agencies in order to improve the quality of the information.

Endnotes

MINAM-Peru (2016) Estrategia Nacional sobre Bosques y Cambio Climático.

Methodology: Kernel Density tool from Spatial Analyst Tool Box of ArcGis. The 2016 data is based on GLAD alerts, while the 2012-15 data is based on official annual forest loss data

Ravikumar et al (2016) Is small-scale agriculture really the main driver of deforestation in the Peruvian Amazon? Moving beyond the prevailing narrative. Conserv. Lett. doi:10.1111/conl.12264

4 Gutiérrez-Vélez VH et al (2011). High-yield oil palm expansion spares land at the expense of forests in the Peruvian Amazon. Environ. Res. Lett., 6, 044029.

Environmental Investigation Agency EIA (2015) Deforestation by Definition.

NG J (2015) United Cacao replicates Southeast Asia’splantation model in Peru, says CEO Melka. The Edge Singapore, July 13, 2015.

Palmas del Shanusi & Palmas del Oriente; http://www.palmas.com.pe/palmas/el-grupo/empresas

Hill D (2015) Palm oil firms in Peru plan to clear 23,000 hectares of primary forest. The Guardian, March 7, 2015.

Asner GP, Llactayo W, Tupayachi R,  Ráez Luna E (2013) Elevated rates of gold mining in the Amazon revealed through high-resolution monitoring. PNAS 46: 18454. They reported 46,417 hectares confirmed and 3,268 hectares suspected (49,865 ha total).

10 Laurance et al (2014) A global strategy for road building. Nature 513:229; Barber et al (2014) Roads, deforestation, and the mitigating effect of protected areas in the Amazon.  Biol Cons 177:203.

11 UNODC/DEVIDA (2016) Perú – Monitoreo de Cultivos de Coca 2015.

12 Finer M, Jenkins CN (2012) Proliferation of Hydroelectric Dams in the Andean Amazon and Implications for Andes-Amazon Connectivity. PLoS ONE 7(4): e35126.

13 Hansen MC et al (2016) Humid tropical forest disturbance alerts using Landsat data. Environ Res Lett 11: 034008.

14 Planet Team (2017). Planet Application Program Interface: In Space for Life on Earth. San Francisco, CA. https://api.planet.com

Citation

Finer M, Novoa S (2017) Patterns and Drivers of Deforestation in the Peruvian Amazon. MAAP: Synthesis #2.

MAAP #50: Gold Mining Deforests 31,000 Acres in southern Peruvian Amazon during last 4 years

We analyzed hundreds of high-resolution satellite images to calculate the amount of recent (October 2012 – October 2016) gold mining deforestation in the southern Peruvian Amazon: 30,895 acres. Combining this finding with previous studies, we estimate the total gold mining deforestation of around 154,440 acres in the region. Image 50a shows the recent gold mining deforestation in red, and all previous gold mining deforestation in yellow.

Key findings include:

  • The vast majority of the deforestation has occurred in the Madre de Dios region, but also has extended to the adjacent regions of Cusco and Puno.
  • The rate of recent gold mining deforestation was much lower (42%) than during its peak, which occurred between 2010 and 2012 (6,640 vs. 15,650 acres/year).
  • However, half of the recent gold mining deforestation (15,830 acres) occurred within the buffer zones of three protected areas (Tambopata National Reserve, Bahuaja Sonene National Park, and Amarakeari Communal Reserve).
  • Moreover, recent gold mining deforestation invaded two protected areas (Tambopata and Amarakaeri).
Image 50a. Data: MAAP, Asner et al (2013) PNAS, SERNANP. Click to enlarge.
Image 50a. Data: MAAP, Asner et al (2013) PNAS, SERNANP. Click to enlarge.

Previously, Dr. Greg Asner and colleagues documented the deforestation of approximately 123,200 acres (50,000 hectares) by gold mining activities in the southern Peruvian Amazon through September 2012 (Asner et al 2013). We have updated this information by analyzing hundreds of recent (2016) high-resolution satellite images (see Methodology section below). We documented an additional 30,895 acres (12,503 hectares) of gold mining deforestation between October 2012 and October 2016. Thus, combining both studies, we estimate the total gold mining deforestation of around 154,440 acres (62,500 hectares).

Areas of Interest

We have identified at least 7 areas of interest, characterized by high levels of gold mining deforestation between 2013 and 2016 (see Insets A-G in Image 50b). Below, for each of these areas, we briefly describe its situation and show a recent image from 2016 (right panel) in relation to an older image from between 2011 and 2013 (left panel). The yellow circles indicate the primary areas of gold mining deforestation between those dates. Also, we show a high resolution image that represents each area.

Image 50b. Data: MAAP, Asner et al (2013) PNAS, SERNANP
Image 50b. Data: MAAP, Asner et al (2013) PNAS, SERNANP

A. Tambopata National Reserve and Buffer Zone (La Pampa sector)

Image 50c. Data: USGS/NASA, SERNANP. Click to enlarge.
Image 50c. Data: USGS/NASA, SERNANP. Click to enlarge.

This area is the most serious in terms of the advance of deforestation in a protected area. As documented in MAAP #46, after the initial invasion in November 2015, illegal mining within the Tambopata National Reserve has now exceeded 450 hectares. Recently, the Peruvian Government has carried out a series of major raids against the illegal miners in this area (see MINAM 2016).

Image 50d. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50d. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

In regards to the buffer zone, there has been a sharp increase in the deforestation in the area known as La Pampa. In total, we estimate 9,720 acres of gold mining deforestation within the buffer zone of Tambopata National Reserve over the past four years.

Image 50e. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50e. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

B. Upper Malinowski River (Bahuaja Sonene National Park buffer zone)

Image 50f. Data: USGS/NASA, SERNANP. Click to enlarge.
Image 50f. Data: USGS/NASA, SERNANP. Click to enlarge.

Upstream of the Tambopata National Reserve, illegal gold mining is also advancing along the upper Malinowski River. This area is located in the buffer zone of Bahuaja Sonene National Park. We estimate 2,256 acres of gold mining deforestation has occurred within this buffer zone over the past four years.

Image 50g. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50g. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

C. Delta-1/Amarakaeri Communal Reserve

Image 50h. Data: USGS/NASA, SERNANP. Click to enlarge.
Image 50h. Data: USGS/NASA, SERNANP. Click to enlarge.

An area known as Delta-1 has also experienced a recent increase in gold mining deforestation. This area is partially located within the buffer zone of the Amarakaeri Communal Reserve. As we reported in MAAP #6, illegal gold mining entered the Reserve between 2014 and 2015. The joint patrol and monitoring actions between the national government and indigneous representatives of the Reserve (ECA Amarakaeri) managed to stop the advance of mining deforestation within the Reserve in 2016 (MAAP #44). However, gold mining deforestation continues in the buffer zone of the Reserve, clearing 3,857 acres over the past four years.

Image 50i. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50i. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

D. Cusco: Camanti/Quince Mil

Image 50j. Data: USGS/NASA, SERNANP. Click to enlarge.
Image 50j. Data: USGS/NASA, SERNANP. Click to enlarge.

The advance of gold mining is not limited to Madre de Dios, as it has also expanded in the Cusco region. Most mining activity in Cusco occurs along the Araza and Nuciniscato Rivers in an area known as Camanti/Quince Mil (located between the southeastern sector of the Amarakaeri Communal Reserve and the Interoceanic Highway). We estimate that gold mining deforestation in Cusco reached 1,006 acres over the past four years.

Image 50k. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50k. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

E. Madre de Dios River (i)

Gold mining deforestation also continues to advance along the Madre de Dios River, between the city of Puerto Maldonado and the area of Boca Colorado. Mining in this area is characterized by many small and scattered mining operations.

Image 50l. Data: USGS/NASA, MINAGRI. Click to enlarge.
Image 50l. Data: USGS/NASA, MINAGRI. Click to enlarge.
Image 50m. Data: Digital Globe (Nextview), MINAGRI. Click to enlarge.
Image 50m. Data: Digital Globe (Nextview), MINAGRI. Click to enlarge.

F. Madre de Dios River (ii)

Image 50m. Data: USGS/NASA. Click to enlarge.
Image 50m. Data: USGS/NASA. Click to enlarge.
Image 50n. Data: USGS/NASA. Click to enlarge.
Image 50n. Data: USGS/NASA. Click to enlarge.

G. Pariamanu River

Image 50o. Data: USGS/NASA. Click to enlarge.
Image 50o. Data: USGS/NASA. Click to enlarge.

Finally, we documented the start of mining in a new area: along the Pariamanu river. We estimate that, so far, gold mining deforestation along this river has reached 170 acres.

Image 50p. Data: Digital Globe (Nextview). Click to enlarge.
Image 50p. Data: Digital Globe (Nextview). Click to enlarge.

Methodology

We used gold mining deforestation data from Asner et al 2013 as a pre-2013 base. We then added 2013-2014 forest loss data (Hansen et al 2013) and 2015-2016 GLAD alerts (Hansen et al 2016), both datasets generated by the University of Maryland and Google. The 2013-2016 data was filtered to only include forest loss directly caused by gold mining as determined by visual analysis of 2016 high-resolution satellite imagery. This included 0.5 m resolution imagery from Digital Globe and 3-5 m resolution imagery from Planet. In total, we analyzed 135 images from Digital Globe and 34 from Planet. Gold mining deforestation is suitable for this type of visual analysis because it leaves a unique footprint, quite distinct from other possible causes such as agriculture, cattle pasture, and natural river movement. As described in Asner et al 2013, “gold mining operations result in a unique combination of bare substrate and standing water[…]” Finally, we erased any overlapping mining deforestation data to avoid duplicating information between data sets. Displayed Landsat images are bands 753, made transparent over bands 432.

References

Asner GP, Llactayo W, Tupayachi R,  Ráez Luna E (2013) Elevated rates of gold mining in the Amazon revealed through high-resolution monitoring. PNAS 46: 18454. They reported 46,417 hectares confirmed and 3,268 hectares suspected (49,865 ha total).

Hansen MC et al (2013) High-Resolution Global Maps of 21st-Century Forest Cover Change. Science 342: 850–53.

Hansen MC et al (2016) Humid tropical forest disturbance alerts using Landsat data. Environ Res Lett 11: 034008.

Citation

Finer M, Olexy T, Novoa S (2016) Gold Mining Deforests 32,000 Acres in southern Peruvian Amazon from 2013 to 2016. MAAP: 50.

MAAP #49: New Frontiers of Gold Mining in the Peruvian Amazon

maap_amazonas_mineria_1_v3_beta_en
Imagen 49a. Peru’s gold mining frontiers.

In a series of articles, we have previously detailed the progress of gold mining deforestation in the southern Peruvian Amazon (mainly in the Madre de Dios region).

In the current report, we show the new gold mining frontiers in northern and central Peru (Image 49a): two cases in the region of Amazonas and a case in the buffer zone of El Sira Communal Reserve, in the Huanuco region.

Deforestation in these cases is still in its early stages, so there is still time to avoid larger-scale damage, as in the case of Madre de Dios.

 

 

 

 

 

 

 

 

 

Amazonas Region

In the Amazonas region, there are two cases of recently active gold mining deforestation: the Afrodita project in the Cóndor mountain range (Inset A) and along the Santiago River (Inset B) (Image 49b).

maap_amazonas_mineria_1_v2_en
Image 49b. Data: SERNANP

Amazonas: Condor Mountain Range

The remote Condor Mountain Range, located along the Peru-Ecuador border, is home to rich biodiversity and territories of the Awajún and Wampís indigenous peoples. The mining concession Afrodita, on the Peruvian side, has been controversial due to the potential environmental and social impacts of mining activity in a sensitive environment. Image 49c shows the beginning of deforestation within the Afrodita concession, between December 2015 (left panel) and July 2016 (right panel). Thus far, deforestation within the concession is 12 hectares (30 acres), including the access road from Ecuador.

maap_amazona_mineria_a_v1_en
Image 49c. Data: Planet. Click to enlarge.

Amazonas: Santiago River

In the previous MAAP #36, we showed the first evidence of gold mining deforestation along the Santiago River. Image 49d shows a comparison between the situation last shown by MAAP in March 2016 (left panel), and its current state in October 2016 (right panel). To date, this deforestation has reached 10 hectares (25 acres). Importantly, in September, the Peruvian Navy intervened in the area (known as the Pastazio tributary), destroying some dredges and other equipment.

maap_amazona_mineria_b_v2_en
Image 49d. Data: Planet. Click to enlarge.

El Sira Communal Reserve

In the previous MAAP #45, we showed illegal gold mining within the El Sira Communal Reserve. Here, we highlight a new active gold mining area in the buffer zone of the reserve (Image 49e). Image 49f shows the appearance of a new mining area between August 2015 (left panel) and August 2016 (right panel). To date, the mining deforestation at this site has reached 10 hectares (25 acres).

esira_mineria_1_v3_en
Image 49e. Data: SERNANP
esira_mineria_2_m_v1_en
Image 49f. Data: Digital Globe (Nextview). Click to enlarge.

Citation

Novoa S, Finer M (2016) New Frontiers of Gold Mining in the Peruvian Amazon. MAAP: 49

MAAP #46: Gold Mining Deforestation Within Tambopata National Reserve Exceeds 450 Hectares

In previous articles, we documented the illegal gold mining invasion of Tambopata National Reserve (Madre de Dios region in the southern Peruvian Amazon) in November 2015 and the subsequent deforestation of 350 hectares as of July 2016. Here, we report that the mining deforestation in the Reserve now exceeds 450 hectares (1,110 acres) as of September 2016. Image 46a illustrates the extent of the invasion, with red indicating the most recent deforestation fronts. Insets A-D indicate the location of the high-resolution zooms below.

Imagen 46a. Datos: Planet, SERNANP, MAAP
Image 46a. Data: Planet, SERNANP, MAAP

High Resolution Zooms

Images 45b-e show, in high-resolution, the recent deforestation within Tambopata National Reserve between July (left panel) and September (right panel) 2016. These areas correspond to Insets A-D. The red circles indicate the primary areas of new deforestation between these dates. Click on images to enlarge.

Imagen 45b. Datos: Planet, SERNANP
Image 45b. Data: Planet, SERNANP
Imagen 45c. Datos: Planet, SERNANP
Image 45c. Data: Planet, SERNANP
Imagen 45d. Datos: Planet, SERNANP
Image 45d. Data: Planet, SERNANP
Imagen 45e. Datos: Planet, SERNANP
Image 45e. Data: Planet, SERNANP

Citation

Finer M, Olexy T, Novoa S (2016) Gold Mining Deforestation Within Tambopata National Reserve Exceeds 450 Hectares. MAAP: #46

MAAP #44: Potential Recuperation of Illegal Gold Mining area in Amarakaeri Communal Reserve

In the previous MAAP #6, published in June 2015, we documented the deforestation of 11 hectares in the Amarakaeri Communal Reserve due to a recent illegal gold mining invasion. The Reserve, located in the Madre de Dios region of the southern Peruvian Amazon, is an important protected area that is co-managed by indigenous communities and Peru’s National Protected Areas Service (known as SERNANP). In the following weeks, the Peruvian government, led by SERNANP, cracked down on the illegal mining activities and effectively halted the deforestation within that part of the Reserve.

Here, we present high-resolution satellite images that show an initial vegetation regrowth in the invaded area. This finding may represent good news regarding the Amazon’s resilience to recover from destructive mining if it is stopped at an early stage. However, many questions and caveats remain regarding the nature of the regrowth and the long-term recovery potential of the degraded land, please see the Additional Information section below for more details.

Image 44a shows the base map of the area invaded by illegal gold mining in the southeast sector of Amarakaeri Communal Reserve. Insets A–D indicate the areas featured in the high-resolution zooms below.

Image 44a. Data: Digital Globe (Nextview), SERNANP
Image 44a. Data: Digital Globe (Nextview), SERNANP

High-Resolution Zooms

Images 44b-e show, in high-resolution, areas where we detected vegetation regrowth between September 2015 (left panel) and August 2016 (right panel) following the gold mining invasion.

Image 44b. Data: Digital Globe (Nextview)
Image 44b. Data: Digital Globe (Nextview)
Image 44c. Data: Digital Globe (Nextview)
Image 44c. Data: Digital Globe (Nextview)
Image 44d. Data: Digital Globe (Nextview)
Image 44d. Data: Digital Globe (Nextview)
Image 44e. Data: Digital Globe (Nextview)
Image 44e. Data: Digital Globe (Nextview)

Additional Information

The natural vegetation regrowth observed in the images is not totally unexpected considering the area’s high biological diversity, the presence of nearby primary forest, and the relatively small area invaded prior to the government intervention. However, it’s important to consider that the regrowth has occurred mainly on the mounds of soil that were left behind by the mining activity. The regrowth is not yet evident in the other mining areas where the soil alteration was more severe. Further investigation is needed to better understand the characteristics of the regrowth and explore the true restoration potential of the area. Extreme degradation and mercury contamination left behind by mining activities may prevent many species from returning, allowing only the establishment of a few hardy colonizing specialist species.

Citation

Novoa S, Finer M, Román F (2016) Regeneration of Vegetation in Zone Affected by Gold Mining in the Amarakaeri Communal Reserve. MAAP: 44.

MAAP #43: Early Warning Deforestation Alerts in the Peruvian Amazon, Part 2

In the previous MAAP #40, we emphasized the power of combining early warning forest loss GLAD alerts with analysis of high-resolution satellite imagery as part of a comprehensive near real-time deforestation monitoring system for the Peruvian Amazon.

In the current MAAP, we present 3 new examples of this system across different regions of Peru. Click on the images below to enlarge.

Example 1: Illegal Gold Mining in buffer zone of Bahuaja Sonene National Park (Madre de Dios)
Example 2: Logging Road in buffer zone of Cordillera Azul National Park (Ucayali/Loreto)
Example 3: Deforestation in Permanent Production Forest (Ucayali)

Example 1: Illegal Gold Mining in buffer zone of Bahuaja Sonene National Park (Madre de Dios)

In the previous MAAP #5, we discussed illegal gold mining deforestation along the upper Malinowski River, located in the buffer zone of the Bahuaja Sonene National Park. As seen in Image 43a, the upper Malinowski is just upstream of the areas invaded by illegal gold mining in Tambopata National Reserve and its buffer zone (see MAAP #39 and #31, respectively). In MAAP #5, we documented the deforestation of more than 850 hectares between 2013 and 2015 along the upper Malinowski. Here, we show that gold mining deforestation continues in 2016, with an additional loss of 238 hectares (806 acres). Insets A-C correspond to the areas featured in the high-resolution zooms below.

Image 43a. Data: UMD/GLAD, Hansen/UMD/Google/USGS/NASA, NASA/USGS, SERNANP
Image 43a. Data: UMD/GLAD, Hansen/UMD/Google/USGS/NASA, NASA/USGS, SERNANP

The following Images 43b-d show, in high-resolution, the rapid expansion of gold mining deforestation between August/September 2015 (left panel) and July/August 2016 (right panel). The yellow circles indicate the main areas of deforestation between the images.

Imagen 43b. Datos: Planet, Digital Globe (Nextview)
Image 43b. Data: Planet, Digital Globe (Nextview)
Imagen 43c. Datos: Planet, Digital Globe (Nextview)
Image 43c. Data: Planet, Digital Globe (Nextview)
Imagen 43d. Datos: Planet, Digital Globe (Nextview)
Image 43d. Data: Planet, Digital Globe (Nextview)

Example 2: Logging Road in buffer zone of Cordillera Azul National Park (Ucayali/Loreto)

In the previous MAAP #18, we discussed the proliferation of logging roads in the central Peruvian Amazon in 2015. Here, we show the expansion of two of these logging roads in 2016. (see Image 43e). Red indicates construction during 2016 (47 km). Insets A1-A3 correspond to the areas featured in the high-resolution zooms below. Note that the northern road (Inset A3) is within the buffer zone of Cordillera Azul National Park. Evidence suggests that this road is not legal because it extends out of the permited area (see MAAP #18 for more details).

Imagen 43e. Datos: UMD/GLAD, Hansen/UMD/Google/USGS/NASA, SERNANP
Image 43e. Data: UMD/GLAD, Hansen/UMD/Google/USGS/NASA, SERNANP

The following images show, in high-resolution, the rapid construction of these logging roads. Image 43f shows the construction of part of the southern road (Inset A1), and the deforestation for a nearby agricultural parcel, between April (left panel) and July (right panel) 2016. Image 43g shows the construction of 1.8 km in just three days along this same road (Inset A2) between July 21 (left panel) and July 24 (right panel) 2016.

Imagen 43f. Datos: Planet
Image 43f. Data: Planet
Imagen 43g. Datos: Planet
Image 43g. Data: Planet

Image 43h shows the construction of 13 km on the northern road between November 2015 (left panel) and July 2016 (right panel) within the buffer zone of the Cordillera Azul National Park.

Imagen 43h. Datos: Planet
Image 43h. Data: Planet

Example 3: Deforestation in Permanent Production Forest  (Ucayali)

Image 43i shows recent deforestation of 136 hectares (336 acres) in 2016 in southern Ucayali region within areas classified as Permanent Production Forest and Foresty Concession. These types of areas are generally zoned for sustainable forestry uses, not clear-cutting, thus we question the legality of the deforestation. Tables A-B correspond to the areas featured in the high-resolution zooms, below.

Imagen 43i. Datos: UMD/GLAD, Hansen/UMD/Google/USGS/NASA, MINAGRI
Image 43i. Data: UMD/GLAD, Hansen/UMD/Google/USGS/NASA, MINAGRI

Image 43j shows deforestation within a section of Permanent Production Forest, and Image 43k shows deforestation within a section of Forestry Concession.

Imagen 43j. Datos: Planet
Image 43j. Data: Planet
Imagen 43k. Datos: Planet
Image 43k. Data: Planet

Citation

Finer M, Novoa S, Goldthwait E (2016) Early Warning Deforestation Alerts in the Peruvian Amazon, Part 2. MAAP: 43.

MAAP #39: Gold Mining Deforestation Within Tambopata National Reserve Exceeds 350 Hectares

Based on analysis of satellite imagery, we have documented that the deforestation due to illegal gold mining activities within Tambopata National Reserve (Madre de Dios region) now exceeds 350 hectares (872 acres) since the initial invasion in late 2015 (see Image 39a). Although the rate of deforestation has decreased since April, when the Peruvian government installed a permanent control post* in the area, it is clear that the deforestation continues to expand.  In the Image, we highlighted the most recent deforestation (June and July 2016) in red to emphasize the current fronts. Insets A and B indicate the areas detailed in the zooms below.

*A recent article in the New York Times highlighted the extreme difficulty faced by the Peruvian government in cracking down on the illegal mining. Yesterday, the leading Peruvian newspaper El Comercio reported that the control post has been abandoned due to lack of resources.

Image 39a. Data: Planet, SERNANP, MAAP
Image 39a. Data: Planet, SERNANP, MAAP

Zoom A

In the following images, we show high-resolution examples of the recent deforestation within the reserve. Image 39b shows the deforestation that occurred between May 30 (left panel) and June 20 (right panel), 2016 in the area indicated by Inset A. The red circles indicate primary zones of new deforestation between these dates.

Image 39b. Data: Planet, SERNANP
Image 39b. Data: Planet, SERNANP

Zoom B

Image 39c shows the deforestation between May 3 (left panel) and July 21 (right panel), 2016 in the area indicated by Inset B. The red circles indicate primary areas of new deforestation between these dates.

Image 39c. Data: Digital Globe (Nextview), SERNANP
Image 39c. Data: Digital Globe (Nextview), SERNANP

Citation

Novoa S, Finer M, Olexy T (2016) Gold Mining Deforestation within Tambopata National Reserve exceeds 350 Hectares. MAAP: #39

MAAP #36: New Gold Mining Frontier in the Northern Peruvian Amazon

In several previous MAAP articles, we have detailed gold mining deforestation in the southern Peruvian Amazon. Here, we provide evidence of the first known case of gold mining deforestation in northern Peru.

A recent news article published by the Peruvian organization DAR reported that gold mining activity continues to increase in the Santiago River (see Image 36a), located in the Amazonas region of the northern Peruvian Amazon. The article also mentions that this gold mining activity is no longer restricted to the river, but is now entering the forest. There are mining concessions in the area, but according to a recent article published in The Guardian, the miners are not operating legally with permission from the concessionaire.

Here, we show the first satellite images that confirm that the mining activity is indeed causing deforestation along the Santiago River (see below). Click each image to enlarge.

Imagen Xa. Crédito: DAR
Image 36a. Credit: DAR, April 2016

Satellite Images of Gold Mining Deforestation in Northern Peru

Image 36b shows a high-resolution image of the newly deforested area due to mining activity along the Santiago River (see yellow circle). The total forest loss to date is 8 hectares (20 acres).

Imagen Xa. Datos: Planet Labs
Image 36b. Data: Planet Labs

Image 36c shows that the deforestation occurred between August 2014 (left panel) and August 2015 (right panel).

Image 35c. Data: USGS/NASA
Image 36c. Data: USGS/NASA

Citation

Finer M, Novoa S (2016) Gold Mining Deforestation in the Northern Peruvian Amazon. MAAP: 36.

MAAP #33: Illegal Gold Mining Alters Course of Malinowski River (border of Tambopata National Reserve)

In MAAP #30, we described the illegal gold mining invasion of Tambopata National Reserve, an important protected area in the southern Peruvian Amazon (department of Madre de Dios). Here in MAAP #33, we show that illegal gold mining is also altering the course of the Malinowski River, which forms the natural boundary of the Reserve. Image 33a shows the two areas where we have documented a total artificial deviation (cutting) of 4.4 km (2.7 miles) of the river (see details below).

Image 33a. Data: Planet Labs, SERNANP
Image 33a. Data: Planet Labs, SERNANP

Zoom A: A Recent Deviation of the Malinowski River

Image 33b shows the final stage of the deviation of the Malinowski River between March 31 (left panel) and May 3 (right panel) of this year in the area indicated by Inset A in Image 33a. The new flow of the river is clearly seen in the right panel, cutting a 1.7 km stretch of the previous course.

Image 33b. Data: Planet Labs, Digital Globe (Nextview)
Image 33b. Data: Planet Labs, Digital Globe (Nextview)

Image 33c shows with greater precision how the Malinowski river was diverted in this area between April and May 2016. The red arrow indicates the exact same place across time in the three images.

Image 33c. Data: Digital Globe (Nextview)
Image 33c. Data: Digital Globe (Nextview)

Zoom B: An Earlier Deviation of the Malinowski River

In February 2016, Peruvian specialists presented how mining activity had recently changed the natural course of the Malinowski river in the area indicated in Inset B*. Image 33d shows the progressive change: from the increase in mining activity along the normal course of the river in June 2013 (left panel), to the new stretch of riverbed in June 2015 (center panel), and finally to the expansion of mining activity along the previous course (right panel). The red dot indicates the same place over time in the three images. A total of 2.7 km was cut from the previous river course.

Image 33d. Data: Digital Globe (Nextview), Planet Labs
Image 33d. Data: Digital Globe (Nextview), Planet Labs

Ecological Impacts

According to Dr. Carlos Cañas**, coordinator of the Amazon Waters Initiative for Wildlife Conservation Society in Peru, the deviation of the natural course of the Malinowski River will have significant ecological impacts, including:

  • Although the Malinowski River’s course has natural movement, the changes documented in MAAP #33 definitely represent an artificial alteration caused by mining activity.
  • These artificial changes are altering the course of the Malinowski from one that is “narrow and defined” to one that is “wide and scattered.” This change impacts the river’s flood patterns by changing the intensity, timing, and frequency of flooding along the river’s banks. This implies an effect on the migratory behavior of many species of fish downstream, which receive and interpret signals from the river to guide vital functions like feeding and reproduction.
  • The river’s new wider course also causes the velocity of water downstream to decrease, which will lead to increased levels of sediment in the discharge zone of the largest tributary, the Tambopata. Given the nature of the Tambopata, this could provide the almost-permanent damming of the Malinowski, as greater volume of the Tambopata means more sedimentation at the mouth of the river. Among other things, this could hinder the entry of fish to their feeding zones.
  • As seen in Image 33d, fish access to certain areas will be interrupted by the blockade and closure of channels. Also, the connection between the floodable forest and the river channel is completely altered, if not interrupted, in this section of the river. Many fish species that eat fruit or vegetation from the adjacent forest depend on this seasonal connection for food.
  • The Malinowski River, since it is a tributary of the Tambopata River, has natural áreas that are crucial to the reproduction of many local species. Its tributary streams represent habitats that differ from the main river and harbor an incredible variety of fish and invertebrates that contribute to the biodiversity of the river basin. These streams have little sediment, and are thus highly transparent. Mining will destroy or drastically alter these environments, severely impacting this biodiversity.

Referencias

*Villa L., Campos L. G., Pino I. M. (01 de febrero de 2016). Primer Sistema de Alerta Temprana de Geoinformación (SAT-GI) para Áreas Naturales Protegidas del Perú: Reserva Nacional Tambopata y el Ámbito de Madre de Dios del Parque Nacional Bahuaja Sonene. Reporte Nº 001-2016.

** Cañas CM, Waylen PR (2011) Modelling production of migratory catfish larvae (Pimelodidae) on the basis of regional hydroclimatology features of the Madre de Dios Basin in southeastern Peru. Hydrol. Process. DOI: 10.1002/hyp.8192.

**Cañas CM, Pine WE (2011) DOCUMENTATION OF THE TEMPORAL AND SPATIAL PATTERNS OF PIMELODIDAE CATFISH SPAWNING AND LARVAE DISPERSION IN THE MADRE DE DIOS RIVER
(PERU): INSIGHTS FOR CONSERVATION IN THE ANDEAN-AMAZON HEADWATERS. River Res. Applic. 27: 602–611.

Citation

Finer M, Novoa S (2016)  Illegal Gold Mining Alters the Course of the Malinowski River (border of Tambopata National Reserve). MAAP: 33.

MAAP #31: Deforestation Continues Expansion in La Pampa (buffer zone of Tambopata National Reserve)

Illegal gold mining deforestation continues to expand in La Pampa, an area located in the buffer zone of Tambopata National Reserve in the Madre de Dios region. Here, we present a series of high-resolution (0.5 m) images that clearly illustrate this expansion. Image 31a shows the large, expanding mass of deforestation in La Pampa (as of November 2015) in relation to the Tambopata National Reserve and its buffer zone. Insets A and B indicate the high-resolution zoom areas, where further below we show the rapid deforestation of 76 hectares (188 acres) between November 2015 and April 2016.

Capture_main
Image 31a. Data: WorldView-2 of Digital Globe (NextView).

Zoom A: Rapid Advance of Deforestation

Image 31b shows the expansion of deforestation (28 hectares) between November 2015 (left panel) and April 2016 (right panel) in the eastern section of La Pampa. The red dot indicates the exact same point in both images across time.

DGapril_ZoomA_english_v2
Image 31b. Data: WorldView-2 of Digital Globe (NextView).

Zoom B: Formation of a Large Camp

Image 31c shows the formation of a large mining camp between November 2015 (left panel) and April 2016 (right panel) in the eastern section La Pampa. The red dot indicates the exact same point in both images across time. The image also shows the deforestation of 48 hectares around the camp.

DGapril_ZoomB_english_v2
Image 31c. Data: WorldView-2 of Digital Globe (NextView).

Citation

Finer M, Olexy T (2016) Deforestation Continues Expansion in La Pampa (buffer zone of Tambopata National Reserve). MAAP: 31.