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Donor
- Naff, Thomas 24
Topic
- Erosion 24
- Agriculture 14
- Irrigation 13
- Watersheds 10
- Precipitation (Meteorology) 7
- Dams 6
- Groundwater 5
- Soils 5
- Water quality 5
- Droughts 4
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Language
- English 24
Publisher
- Food and Agriculture Organization of the United Nations 3
- International Center for Agricultural Research in the Dry Areas 2
- Middle East Economic Digest Ltd. 2
- American Chamber of Commerce in Egypt 1
- American Universities Field Staff 1
- Asian Institute of Technology 1
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- International Association of Hydrological Sciences 1
- International Hydrological Programme 1
- Middle East Institute (Washington, D.C.) 1
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