[1]GUO Jian-hua,WU Fa-qi,LIANG Xin-lan,et al.Effects of Soil Surface Roughness on Water Transformation in Cultivated Land[J].Research of Soil and Water Conservation,2008,15(03):11-14,19.
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Effects of Soil Surface Roughness on Water Transformation in Cultivated Land
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
15
Number of periods:
2008 03
Page number:
11-14,19
Column:
Public date:
2008-06-20
- Title:
- Effects of Soil Surface Roughness on Water Transformation in Cultivated Land
- Keywords:
- soil surface roughness; depression storage capacity; runoff-yielding time; infiltration rate; water transformation
- CLC:
- S157
- DOI:
- -
- Abstract:
- Soil surface roughness is micro-topography of cultivated soils caused by land management and soil erosion.It plays a critical part in controlling soil water transformation and soil erosion.Several tillage operations were studied:artificial hoe slope,artificial dig slope,contour tillage slope and straight slope.Based on the experiments of simulated rainfall,this article assessed the effects of surface roughness on soil water transformation.Results showed that soil surface roughness can increase depression storage capacity,enhance infiltration rate and wetting front depth,retard runoff-yielding time,decrease runoff volume,and finally improve water transformation rate.The relationship between surface roughness and depression storage was logarithm,and the relationship between average infiltration rate and water transformation rate was liner.
- References:
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Last Update:
1900-01-01