[1]YANG Chun-xia,YAO Wen-yi,XIAO Pei-qing,et al.Differences of Slope Erosion Under Different Site Conditions by Experimental Study[J].Research of Soil and Water Conservation,2010,17(01):222-224.
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Differences of Slope Erosion Under Different Site Conditions by Experimental Study
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 01
Page number:
222-224
Column:
Public date:
2010-02-20
- Title:
- Differences of Slope Erosion Under Different Site Conditions by Experimental Study
- CLC:
- S157
- DOI:
- -
- Abstract:
- Farming activities and vegetation construction is an important part of human activity,this paper takes bare land,agricultural land,grassland and shrub land(newly planted) as the research object,and by the means of rainfall simulation experiment to study the difference of soil erosion on different site conditions,and analyze the morphological of slope erosion.Studies have shown that:the grassland showed the most obvious effect of reducing erosion and runoff,and the latest appearing the hole and rill among the four site conditions.Compared with the bare land,grassland reduced sediment yield 97.24%~99.63% and reduced runoff yield 62.04%～80.46%,perhaps because of the impacts of planting disturbance,newly planted shrubs almost have no function in soil and water conservation,the more density planting,the more serious soil erosion,After the test,experiment slope rill run through,and presents a wide and deep‘V’-type.For the agricultural land and bare land,the amount of sediment and runoff has a relationship with the rainfall intensity.The sediment and runoff of agricultural land were less than bare land when the rainfall intensity was small.Otherwise,the sediment and runoff of agricultural land were more than bare land under the conditions of higher rainfall intensity.Therefore,it’s necessary to keep scientific and rational planting and control the erosion of farming or vegetation-building activities.
- References:
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Last Update:
1900-01-01