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MAAP #202: Protecting Strategic, Free-flowing River Corridors in the Ecuadorian Amazon

Posted on by Lauren deVilla
Aerial photo of a section of the proposed river conservation corridor, highlighting some of the key components of the proposal: free-flowing river, intact riparian forest, and sustainable, low-impact tourism. Photo credit: Wil Henkel

Here, we present a model river conservation strategy proposed by the Ecuadorian Rivers Institute, designed to protect strategic free-flowing river corridors with intact surrounding forests in the critical transition zone between the Andes mountains and the Amazon lowlands.

The vision is to conserve freshwater resources and their surrounding riparian forests, encourage sustainable economic alternatives, and preserve free-flowing ecological connectivity at the basin scale.

There are few remaining high-quality and ecologically intact Andean-Amazon watershed corridors in Ecuador, making their protection and management an urgent national priority, ideally as part of a larger global tropical river conservation strategy

The proposal targets strategic corridors that have three major characteristics:

  1. Free-flowing rivers with no dams, diversions, or channel modifications, and no mining or dredging.
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  2. High-quality rivers that are a reference for water quality and have exceptional natural and cultural values.
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  3. Forested riparian buffer zones to preserve the quality and integrity of the river corridor, enhance the ecological connectivity between protected areas, and preserve habitat throughout critical transition zones.

These core components provide the key elements that are needed to preserve, restore, and enhance the integrity of the freshwater biodiversity, aquatic ecosystems, and scenic landscapes of strategic, free-flowing river corridors in the tropical Andes.

Priorities for River Protection in Ecuador

Base Map. Proposed free-flowing and intact riparian forest corridors (highlighted in yellow) in the northern Ecuadorian Amazon. Data: ERI.

The Base Map illustrates two proposed pilot projects in the northern Ecuadorian Amazon. Both represent key habitats for native fisheries and migratory birds and are important destinations for sustainable ecotourism activities. Following these two examples, national, regional (Amazon-scale), and global river protection programs could be created to include additional watershed corridors.

Jondachi-Hollín-Misahuallí-Napo River Corridor

The Jondachi and Hollín Rivers are major free-flowing tributaries of the Misahuallí River sub-basin in the Napo River watershed. These rivers drain from the Antisana and the Sumaco Napo Galeras National Parks, and provide strategic connectivity in a critical transition zone between montane cloudforests and lowland rainforest.

The proposed corridor would protect 200 km of free-flowing rivers and 19,050 hectares of riparian forest (with the application of 500m-wide buffers) within the Sumaco Biosphere Reserve. A significant portion of the corridor is within a forest reserve to provide enhanced connectivity and protection. The proposed corridor is an established destination for a variety of low-impact ecotourism activities that provide significant benefits to the local economy.

Piatúa River Corridor

The Piatúa River is another world-class paddle sports ecotourism destination that is renowned for its natural bathing areas with crystal clear water and sculpted granite boulders. The Piatúa River is a tributary of the Anzu River sub-basin of the Napo River watershed, which drains out of rugged paramo tundra and montane cloud forests deep within the Llanganates National Park, and provides critical ecosystem connectivity through a wide elevation range with high levels of endemic species.

The proposed corridor would protect 46 km of free-flowing rivers and tributaries and 947 hectares of riparian forest (with the application of a 100m-wide riparian buffer)

River Conservation Strategy

Guidelines for Protection

Legally binding frameworks are needed which restrict the development of intensive land-use activities and hydraulic infrastructure, and guarantee high-level, permanent protection of natural river corridors and natural instream flow regimes, with riparian buffer zones to preserve aquatic habitat and water quality. Ecuador has an existing framework which can be used to designate protected river corridors with the same status as national parks. However, until now it has only been applied to protect small catchment basin areas for sources of drinking water in headwater tributaries.

Management recommendations

Comprehensive management plans must be developed with meaningful public participation, and provisions for monitoring, control and enforcement of restricted activities. Independent monitoring and evaluation is necessary to ensure adequate compliance and implementation is achieved. Academic institutions should be encouraged to participate and develop research programs which reinforce the management objectives.

Social component

The successful implementation of the proposed river protection strategy depends on the active participation and endorsement by the local population and people who use the resource, along with adequate governance, and sufficient funding for management and incentives.

Protecting the river corridor ensures sustainable economic benefits for the inhabitants of the region through low-impact ecotourism activities (such as kayaking, rafting, mountain biking, bird watching, and hiking) which are compatible with the management of the resource.

However, additional financial incentives (such as land grants) are needed to reach other sectors of the population in order to take pressure off of the increasing encroachment into the forested riparian corridors for timber harvesting and subsistence-level agricultural expansion.

Ongoing support and guidance is also needed for local communities and landowners to identify employment opportunities and encourage other sustainable production activities in order to optimize the use of degraded areas outside of the protected riparian buffers.

In the case of plastic recycling, the population of Ecuador has responded favorably to adapting cultural and behavioral norms in response to small incentives created by a tax on plastic beverage containers, to address a significant waste management issue. This is a positive sign for what to expect if incentives are provided for protecting natural river corridors.

Financial mechanisms

Securing long-term financial commitments is a fundamental component to ensure the viability of any natural resource protection program. Most developing countries are burdened by foreign debt and are struggling to meet their fiscal obligations and priorities, which often lessens priorities for environmental management. However, experience has shown that the international community responds favorably to reinforce commitments made by host countries to preserve natural and cultural heritage of global significance, and debt forgiveness and debt reduction transactions for host country governments, from wealthy countries would be expected to provide some funding for the proposed strategy to protect strategic free-flowing river corridors in Ecuador.

The Government of Ecuador is facing a critical economic situation. However, water conservation funds have been successfully implemented to cover the cost of managing the protection of drinking water sources for metropolitan areas by including a small environmental management fee on monthly water bills. Some of these water conservation funds have generated substantial levels of endowment to the point where they could have the potential to provide funding for the protection of strategic river corridors, if that was authorized by the water fund consortium.

While the outcome of COP28 may have put a temporarily damper on the value of the nascent carbon credit market, once the programs are restructured to provide for improved accountability and implementation, the expectations for carbon credits to provide a source of long-term funding for the protection and management of strategic free-flowing river corridors as a climate mitigation strategy are quite encouraging, as are expectations for eventual funding allocations for river protection to be derived from the COP21 Paris Climate Accord, and the Global Environmental Facility (GEF).

Meanwhile, voluntary contributions from hydroelectric projects and extractive projects to offset their impacts by designating a percentage of annual income from the generation of electricity for the protection of free-flowing river corridors.

Likewise, voluntary contributions from international finance institutions based on a percentage of annual revenue disbursed through their investment portfolio could provide meaningful support for the protection of free-flowing river corridors, once these agreements are established.

Annex

Herre is a recent satellite image of the Jondachi-Hollín-Misahuallí-Napo River Corridor. Note the intact river and forest core to the east of the major road network, and north of the Napo River.

 

Citation

Terry M, Finer M, Ariñez A (2023) Protecting Free-flowing & Intact River Corridors in the Ecuadorian Amazon. MAAP: 202.

MAAP #199: Amazon Carbon Update, based on NASA’s GEDI Mission

Posted on by Lauren deVilla

As we approach the COP28 climate summit, starting in Dubai in late November, we provide here a concise update on the current state of remaining Amazon carbon reserves.

We present the newly updated version of NASA’s GEDI data1, which uses lasers aboard the International Space Station to provide cutting-edge estimates of aboveground biomass density on a global scale.

Here, we zoom in on the Amazon and take a first look at the newly updated data, which covers the time period of April 2019 – March 2023.2

This data, which is measured in megagrams of aboveground biomass per hectare (Mg/ha) at a 1-kilometer resolution, serves as our estimate for aboveground carbon reserves.

Figure 1 displays aboveground biomass across the Amazon biome. Note the highest carbon densities (indicated in bright yellow) are located in both the northeast Amazon and southwest Amazon.

Aboveground Biomass across the Amazon

Figure 2 also displays aboveground biomass across the Amazon biome, but this time with country boundaries and labels added.

Note that the peak biomass concentrations in the northeast Amazon include Suriname, French Guiana, and the northeast corner of Brazil. The peak biomass concentrations in the southwest Amazon are centered in southern Peru. Also note that many parts of Ecuador, Colombia, Venezuela, Guyana, Bolivia, Brazil, and northern Peru have high carbon densities as well.

Figure 2. Aboveground biomass density (carbon estimate) across the Amazon biome, with country boundaries. Data: NASA/GEDI, NICFI.

Carbon Estimates

We calculated over 78 billion metric tons of aboveground biomass across the Amazon biome (78,184,161,090 metric tons to be exact). Using a general assumption that 48% of this biomass is carbon3, we estimate over 37 billion metric tons of carbon across the Amazon (37,528,397,323 metric tons).

Note that these totals are likely underestimates given that the laser-based data has not yet achieved full coverage across the Amazon (that is, there are many areas where the lasers have not yet recorded data, leaving visible blanks in the maps above).

This is consistent with a previous study based on another independent dataset, where we estimated 6.7 billion metric tons of carbon in the Peruvian Amazon as of 2013 (MAAP #148). The current GEDI data estimates at least 5.3 billion metric tons in the Peruvian Amazon.

Carbon Sink

In a previous report, we showed that the Brazilian Amazon has become a net carbon source, whereas the total Amazon is still a net carbon sink (MAAP #144). Our current report goes one step further in terms of showing just how much carbon is left in that sink.

Notes

1GEDI L4B Gridded Aboveground Biomass Density, Version 2.1. https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=2299

2Note that we previously reported on the initial data release, which covered the time period of April 2019 – August 2021 (see MAAP #160).

3Domke et al (2022) How Much Carbon is in Tree Biomass?. USDA/Forest Service.

Acknowledgements

This work was supported by NORAD (Norwegian Agency for Development Cooperation) and ICFC (International Conservation Fund of Canada).

Citation

Mamani N, Finer M, Ariñez A (2022) Amazon Carbon Update, based on NASA’s GEDI Mission. MAAP: 199.

MAAP #197: Illegal Gold Mining Across the Amazon

Posted on by Matt Finer
Example of major gold mining zone in the Peruvian Amazon. Data: Planet.

Illegal Gold Mining continues to be one of the major issues facing nearly all Amazonian countries.

In fact, following the recent high-level summit of the Amazon Cooperation Treaty Organization, the nations’ leaders signed the Belém Declaration, which contains a commitment to prevent and combat illegal mining, including strengthened regional and international cooperation (Objective 32).

Illegal gold mining is a major threat to the Amazon because it impacts both primary forests and rivers, often in remote and critical areas such as protected areas & indigenous territories.

That is, illegal gold mining is both a major deforestation driver and a source of water contamination (especially mercury) across the Amazon.

Previously, in MAAP #178, we presented a large-scale overview of the major gold mining deforestation hotspots across the entire Amazon biome. We found that gold mining is actively causing deforestation in nearly all nine countries of the Amazon.

Here, we update this analysis with two important additions. First, we add to the overview major gold mining operations taking place in rivers, in addition to those causing deforestation (see Figure 1).

Second, we present a new map of likely illegal gold mining sites, based on information from partners and location with protected areas and indigenous territories (see Figure 2).

Finally, we show a series of high-resolution satellite images of key examples of illegal Amazon gold mining.

Updated Amazon Gold Mining Map

Figure 1 is our updated Amazon gold mining map.

The orange dots indicate areas where gold mining is currently causing deforestation of primary forests. The blue dots indicate areas where gold mining is occurring in rivers. Combined, we documented 58 active forest and river-based mining sites across the Amazon.

The dots outlined in red indicate the mining sites that are likely illegal, for both forest and river-based mining. We found at least 49 cases of illegal mining across the Amazon, the vast majority of the active mining sites noted above.

Note the concentrations of illegal mining causing deforestation in southern Peru, across eastern Brazil, and across Ecuador. Similarly, note the concentrations of illegal mining in rivers in northern Peru and adjacent Colombia and Brazil.

Figure 1. Updated Amazon gold mining map. Data: ACA/MAAP. Click to enlarge.

Protected Areas & Indigenous Territories

Figure 2 adds protected areas and indigenous territories. We found at least 36 conflictive overlaps: 16 in protected areas and 20 in indigenous territories. We also found an additional two conflicts with Brazilian National Forests.

We highlight a number of high-conflict zones. For protected areas: Podocarpus National Park in Ecuador; Madidi National Park in Bolivia; Canaima, Caura, and Yapacana National Parks in Venezuela. We note that the Peruvian government has been effectively minimizing invasions in protected areas in the southern region of Madre de Dios (Tambopata National Reserve and Amarakaeri Communal Reserve).

For indigenous territories: Kayapo, Menkragnoti, Yanomami, and Mundurucu in Brazil; Pueblo Shuar Arutam in Ecuador, and a number of communities in southern Peru.

Figure 2. Amazon gold mining map., with protected areas and indigenous territories. Data: ACA/MAAP, RAISG. Click to enlarge.

Methods

The forest-based mining sites displayed in Figure 1 are largely based on information obtained over the last several years of our deforestation monitoring work. The river-based sites are largely based on information obtained from partners in country and on the ground.

We complemented this information with automated, machine-based data from Amazon Mining Watch, and data from RAISG.

For these sources, we checked recent imagery and only included sites that appeared to still be active.

Classification as an illegal mining site is largely based on location within protected areas or indigenous territories, or clearly
outside of an authorized mining zone

Citation

Finer M, Mamani N, Arinez A, Novoa S, Larrea-Alcázar D, Villa J (2023) Illegal Gold Mining Across the Amazon. MAAP: 197.