[1]CHENG Long-fei,LI Lin-yan.The Ecosystem Development Mode of Slope Vegetation for Water and Soil Conservancy in Three Gorges Region[J].Research of Soil and Water Conservation,2010,17(05):251-253,260.
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The Ecosystem Development Mode of Slope Vegetation for Water and Soil Conservancy in Three Gorges Region
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 05
Page number:
251-253,260
Column:
Public date:
2010-10-20
- Title:
- The Ecosystem Development Mode of Slope Vegetation for Water and Soil Conservancy in Three Gorges Region
- CLC:
- S157.43
- DOI:
- -
- Abstract:
- After studying the mechanism of slope sediment yield and the principle of using vegetation for water and soil conservancy as well as the application of this ecosystem development mode in Three Gorges region, it comes to following conclusions: it is beneficial for water and soil conservancy to reduce the pulling and unlift forces of flows, or to increase the cohesion of soil; the main effects of canopy and branches are moisture closure, reduction of rain splash-erosion and restraint of surface runoff etc; as to roots, mycorrhiza and secretion can reduce the bulk density and increase the cohesion of soil stratas; the roots could increase effective porosity and improve permeability. So the valid planting mode in Three Gorges region is closed forest on the top of the slopes and to combine ridge and furrow on slope sides, planting economic fores with high-attached value and assisted by engineering measures such as terracing of sloping fields.
- References:
-
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Last Update:
1900-01-01