[1]WANG Yu-xia,LIU Guo-bin,WANG Guo-liang,et al.Effect of Artemisia capillaries Distribution Patterns on Runoff and Sediment Production in Loess Hilly and Gully Region[J].Research of Soil and Water Conservation,2010,17(01):62-66.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 01
Page number:
62-66
Column:
Public date:
2010-02-20
- Title:
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Effect of Artemisia capillaries Distribution Patterns on Runoff and Sediment Production in Loess Hilly and Gully Region
- Author(s):
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WANG Yu-xia1, LIU Guo-bin1,2, WANG Guo-liang1,2, YUAN Zi-cheng1, QU Qiu-ling1
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1. Northwest A&F University, Yangling, Shanxi, 712100, China;
2. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shanxi, 712100, China
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- Keywords:
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Artemisia capillaries communities; distribution patterns; runoff and sediment production; loess hilly and gully region
- CLC:
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S157;S315
- DOI:
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- Abstract:
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Vegetation pattern has a great affection on its soil conservation function.Different combination of vegetation and bare land play a different role in regulating runoff and sediment yield.By simulated rainfall in the field,an experiment of runoff and sediment production and its characteristics was conducted in various Artemisia capillaries community distribution patterns at preliminary succession stages in Loess Hilly Gully Region.The results showed that under the same rainfall intensity of 2.43 mm/min and vegetation coverage,the runoff-reducing benefit of pattern B uniformly distributed by small plaque was greater than pattern C distributed by large plaque.Whereas,the sediment-reducing benefit was smaller.Compared to bare plot,the runoff in pattern B and C was decreased by 14.7% and 9.5%,and the sediment reduced of 36.14%,63.86% respectively.The accumulative runoff of the band-shaped plot increased with the rainfall duration with a linear relation.The accumulated sediment yield increased with rainfall time and then gradually decreased,such relation could be described by quadratic function.Also,the initial sediment yield was increased with runoff volume,then decreased.The changes in accumulative sediment yield with runoff was also conformed binomial function.