National Hydrology committee of Afghanistan (NHCA ...

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Sediment deposition into reservoirs has several major detrimental effects. ‣ Loss of storage capacity. ‣ Damage to or impairment of hydro equipment. ‣ Bank erosion and instabilities. ‣ Downstream channel modification. ‣ Reduced downstream suspended sediment load. ‣ Upstream aggradations. ‣ Effect on water quality. ‣ Effect on waste assimilation. ‣ Effect on navigation and recreation. ‣ Effect on aquatic life.
Plans for mitigation of erosion and sedimentation ‣ For urgently Dredging, Sub cut, empty washing ‣ Reforestation and plantation for land covering long term ‣ Preparation of National Strategy and policy for erosion and sediment mitigation. ‣ Use water resource potential in the country through rain and flood water harvesting, construction of small, medium, and large depressions, pools and dams for flood control and prevention of erosion . ‣ Construction of protective structures along river where sliding may occur.
Page 1 and 2: National Hydrology committee of Afg
Page 9: Classification of Rivers according
Page 12 and 13: Why a good understanding of sedimen
Page 15 and 16: Sediment Control Plan Q Control Poi
Page 17 and 18: Sediment Control Dam ‣ Function 1
Page 19 and 20: Sediment Control Dam ‣ Function 2
Page 24 and 25: 3D VIEW OF KABUL RIVER BASIN Kabul
Page 26 and 27: Other view from agriculture land of
Page 28 and 29: 3D View of from Kunar River Kunar r
Page 30 and 31: 3D View of Panjsheer river Basin Gu
Page 40 and 41: •Sedimentation ‣ Intensive soil
Page 42 and 43: ‣ Lack of river mangement and tra
Page 44 and 45: Sedimentation and erosion problems
Page 48: Immediate Response ‣ Good river m
Page 51 and 52: ‣ Reservoirs with small drainage
Page 53: Thank you for attention

National Hydrology committee of Afghanistan (NHCA ...

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