Investing in Climate Change Adaptation through Agroecological Landscape Restoration: A Nature-Based Solution for Climate Resilience (Technical Assistance 6539)

The Asian Development Bank, with support from the Government of Japan through the Japan Fund for Prosperous and Resilient Asia and the Pacific, is working with the International Centre for Environmental Management and World Agroforestry, to help implement the regional technical assistance (TA) project, Investing in Climate Change Adaptation through Agroecological Landscape Restoration: A Nature-Based Solution for Climate Resilience in Cambodia and the Philippines. As the official focal agency for the project in Cambodia, the TA is working closely with the Ministry of Environment of the Royal Government of Cambodia.

The project’s emphasis is on forest restoration, agroforestry, and agroecology as critical strategies for climate change and disaster resilience. It focuses on restoration activities within the headwaters of the Sangker River basin and Samlaut Multiple Use Area, located to the west of the Tonle Sap Lake.

This web-based geospatial decision support system is one of the TA’s key outputs that incorporates the analytical outputs from the project to strengthen integrated management of the Sangker River Basin. It aims to support government planners and disaster risk practitioners in addressing climate-related threats such as extreme flood, drought, erosion, heat stress, and wildfire events, in the Sangker River basin.

Map Viewer

An interactive geospatial mapping tool drawing from a wide range of datase

Methodology

Methodology to identify the degraded landscape


Restoration sites

Site-specific restoration plans as demonstration examples for replication



Developed by ICEM for MoE



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Identifying
hotspots of
environmental degradation


The composite degradation hotspot layer shows the areas within the watershed that are likely to be the most degraded and can be used by planners for preliminary assessment for restoration. The degradation hotpot composite layer is derived through consideration of four factors: flood, drought, historical fire incidence, and status of forest cover (whether degraded or not). The method involves assigning a value (i.e., 0 or +1) to grid cells in each of the four input data layers, where a positive value of +1 indicates a higher risk at that location to any one of the hazard factors (flood, drought, and fire) or forest loss. Then the composite layer is generated using GIS software by spatially overlaying all layers and summing the grid cell values to generate a single composite index. Pixels representing present-day (2022) urban and built-up areas are also indicated in the degradation hotspot layer.

The individual input layers and composite output can be considered in relation to the protected area status - Protected Areas (PA) and Key Biodiversity Areas (KBA) which can be overlaid on the map.

These are clearly defined geographical spaces that are recognized, dedicated, and managed through legal or other effective means to achieve long-term conservation of nature. PAs often include national parks, wildlife reserves, and marine protected areas.

These are sites that contribute significantly to the global conservation of biodiversity. KBAs are identified based on objective criteria such as the presence of threatened species or unique ecosystems.


Factors Value Score
Below or equal to median value (median flood depth: 6 m) 0
Above median value (median flood depth: 6 m) 1
Below or equal to median value (4.2 months) 0
Above median value (4.2 months) 1
No fire detected 0
Fire detected 1
Forest remaining 0
Forest loss 1
Degradation hotspots
The red composite index of '4' indicates an area with highest potential degradation.
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2023 Developed by ICEM for MoE

Restoration site Summary Images/Maps
Takhes Meanchey
View on Google Maps
The area is located in Mean Chey khum (commune), Samlaut District, some 13 km NE of Samlaut town at 12.685501 N 102.759223 E. The community forest area is situated about 1 km east of the Sanker river which is also the boundary of the Samlaut Multiple Use Protected Area (PA). It covers an area of 11.6 ha.
Read restoration plan in details
Takhe Meanchey Restoration Site Location
Anacot Komasamaky
View on Google Maps
The area is located in Mean Chey khum (commune), Samlaut District, some 9.6 km SSE of Treng town and road junction at 12.752780 N, 102.866206 E. It covers an area of 6.7 ha.
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Anakot Komasamaky Resoration Site Location
Dontret
View on Google Maps
The area is located in Ta Sanh khum (commune), Samlaut District, some 8.9 km NE of Samlaut town at 12.683880 N 102.905437 E. The community forest area is situated about 800 m SW of Dontret village. It covers an area of 44 ha.
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Dontret Restoration Site Location
Oslev, Samlout Multiple Use Area
View on Google Maps
The area is located within the Samlout Multiple Use Protected Area, Samlaut District, some 19 km NE of Samlaut town at 12.701089 N 102.704599 E. The area has been cleared by illegal settlers in the Samlaut Protected Area with the whole cleared area covering around 180 ha with the area planned for restoration covering about 11.2 ha.
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Oslev, Samlaut MUA Resoration Site Location


2023 Developed by ICEM for MoE