[1]XI Tong-hang,ZUO Chang-qing,YIN Zhong-dong,et al.Analysis on Characteristic of Soil Water Deficit on Red Soil Slope Land[J].Research of Soil and Water Conservation,2012,19(04):30-33.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 04
Page number:
30-33
Column:
Public date:
2012-08-20
- Title:
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Analysis on Characteristic of Soil Water Deficit on Red Soil Slope Land
- Author(s):
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XI Tong-hang1, ZUO Chang-qing2, YIN Zhong-dong3, WANG Zhao-yan2, ZHANG Jing-feng2
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1. Jiangxi Provincial Research Institute of Soil and Water Conservation, Nanchang 330029, China;
2. China Institute of Water Resources and Hydropower Research, Beijing 100048, China;
3. College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
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- Keywords:
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red soil slope-land; water deficit; soil water; characteristic analysis
- CLC:
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S152.7
- DOI:
-
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- Abstract:
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Based on the measurement with tensiometer, characteristics of soil water seasonal dynamic in sloping red soil lands in Jiangxi Province were investigated. The effects of soil depths and slope positions on changes of soil water potential were analyzed. The status of soil water deficiency under three treatments (Paspalum notatum flugge planting, mulched by Paspalum notatum flugge, bared land) was compared. The results showed that soil water deficiency status was different at different depths under different land use types. From the view of soil profile, the order of soil water deficiency was: bottom layer>surface layer>middle layer. The order of annual mean values of soil water potential was: bottom layer>surface layer>middle layer. The variation of soil water potential was higher at surface layer than other layers. The upper and middle slope had moderate soil water deficiency while foot of slope had sufficient water supply in soil. In terms of land use types, the soil water deficiency under Paspalum notatum flugge planting treatment was the highest while the treatment mulched by Paspalum notatum flugge was the lowest.