Asian Development Bank (ADB) Technical Assistance (TA) 7610-CAM supports the preparation of MOWRAM’s Roadmap and Investment Program for Irrigation and Water Resources Management, 2019-2033. This investment program provides a comprehensive and strategic framework for the country’s investment in the water resources and irrigation sector.

The current project under TA 7610-CAM concerns (i) rapid water resources assessment of the Tonle Sap and the Mekong Delta river basin groups (24 basins); (ii) ecological assessment of these two river basin groups to identify areas for development and conservation; (iii) detailed surface water resources assessment for five river basins within these groups.

The overall project objective is to support MOWRAM to make more informed, evidence-based water resources management and irrigation investment decisions through better understanding of water resources and ecosystems of two river basin groups: the Tonle Sap and the Mekong Delta and at least five selected river basins within these groups. These river basins are to be selected based on their current and projected level of water stress. The health of high-priority ecosystems and their water demands are assessed in relation to basin hydrological characteristics and foreseen development of water resources.

Outputs of the project are:

• A comprehensive knowledge base on water resources and eco-hydrology in 24 river basins
• Hydrological characterization of 24 river basins
• Quantification of environmental flow requirements for 24 basins
• Selection of the five most water-stressed basins
• Recommended options for efficient and equitable water allocation
• Targeted investment options in the irrigation sector
• Coupled set of calibrated hydrological / water allocation models
• Geospatial data on (eco-)hydrology compatible with the national Water Resources Information System (WRIS) currently under development

FutureWater is the lead firm in the assignment and executes the water resources modelling components of the project.

Related publications

• 2019 - FutureWater Report 208Nolet, C., J. Beard, A. Green, J.E. Hunink, G.W.H. Simons. 2019. Climate Risk Screening for the Tonle Sap River Basin and the Mekong Delta River Basin, Cambodia. FutureWater Report 208X

  Climate Risk Screening for the Tonle Sap River Basin and the Mekong Delta River Basin, Cambodia

  Nolet, C., J. Beard, A. Green, J.E. Hunink, G.W.H. Simons

• 2019 - FutureWater Report 207Green, A., P. Droogers, G.W.H. Simons, B. van Balen, K. Hortle, C. Oeurng, T. Bonvongsar, D. Yem, J.E. Hunink. 2019. Detailed Surface Water Resources Assessment for the Tonle Sap and Mekong Delta River Basins, Cambodia. FutureWater Report 207X

  Detailed Surface Water Resources Assessment for the Tonle Sap and Mekong Delta River Basins, Cambodia

  Green, A., P. Droogers, G.W.H. Simons, B. van Balen, K. Hortle, C. Oeurng, T. Bonvongsar, D. Yem, J.E. Hunink

• 2019 - FutureWater Report 206Green, A., K.G. Hortle, W. Giese, B. van Balen, D. Yem, J. Mills, I. Brownhall, P. Droogers, G.W.H. Simons, J.E. Hunink, C. Oeurng, T. Bonvongsar. 2019. Rapid Assessment of Eco-Hydrology for the Tonle Sap River Basin and Mekong Delta River Basin, Cambodia. FutureWater Report 206X

  Rapid Assessment of Eco-Hydrology for the Tonle Sap River Basin and Mekong Delta River Basin, Cambodia

  Green, A., K.G. Hortle, W. Giese, B. van Balen, D. Yem, J. Mills, I. Brownhall, P. Droogers, G.W.H. Simons, J.E. Hunink, C. Oeurng, T. Bonvongsar

• 2019 - FutureWater Report 205Droogers, P., A. Green, G.W.H. Simons, I. Brownhall, C. Oeurng, T. Bonvongsar, J.E. Hunink. 2019. Rapid Assessment of the State of Water Resources for the Tonle Sap River Basin and Mekong Delta River Basin, Cambodia. FutureWater Report 205X

  Rapid Assessment of the State of Water Resources for the Tonle Sap River Basin and Mekong Delta River Basin, Cambodia

  Droogers, P., A. Green, G.W.H. Simons, I. Brownhall, C. Oeurng, T. Bonvongsar, J.E. Hunink