[1]WANG Xiaoyun,NIE Xingshan.Characteristics of Soil and Water Conservation and Empirical Model Construction of Wangjiagou Watershed[J].Research of Soil and Water Conservation,2015,22(02):22-25.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 02
Page number:
22-25
Column:
Public date:
2015-04-28
- Title:
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Characteristics of Soil and Water Conservation and Empirical Model Construction of Wangjiagou Watershed
- Author(s):
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WANG Xiaoyun, NIE Xingshan
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Shanxi Institute of Soil and Water Conservation, Taiyuan 030013, China
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- Keywords:
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soil erosion; empirical model; soil and water conservation ratio; rainfall erosivity
- CLC:
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S157.2
- DOI:
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- Abstract:
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In order to systematically understand the characteristics of soil and water conservation, and to construct empirical model of soil erosion of Wangjiagou watershed, five decades database of soil and water conservation data was analyzed. Analysis indicated that this watershed had experienced three soil and water conservation stages. From 1955 to 1957, the watershed was at hillside control stage, hillside and gully control stage form 1957 to 1995, and management and control stage from 1995 to 2005. Soil and water conservation efficacy was characterized as three phases, the first one was primary phase from 1955 to 1970, the second one was middle phase from 1970 to 1990, the last one was the senior phase from 1990 to 2005. Analysis also indicated that soil and water conservation ratio could represent 93.36% of the information on soil and water conservation measures. The soil erosion empirical model was constructed as the equation(A=K-αCR+βRE) with variables of soil-water conservation ration (CR) and rainfall erosivity (RE).