Soil-water Conservation and Hydro-environment on Loess Plateau

XU Xuexuan; CUI Xiaolin; MU Xingmin

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Soil-water Conservation and Hydro-environment on Loess Plateau

- Soil-water Conservation and Hydro-environment on Loess Plateau
- Bulletin of Soiland Water Conservation Vol. 18, Issue 5, Pages: 44-48(1999)
- 作者机构：
  
  1. 中国科学院水利部水土保持研究所, 陕西杨陵,712100
  2. 西安科技学院遥感监测系,陕西,西安,710054
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1999
- 稿件说明：
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XU Xuexuan, CUI Xiaolin, MU Xingmin. Soil-water Conservation and Hydro-environment on Loess Plateau[J]. Bulletin of Soiland Water Conservation, 1999, 18(5): 44-48.
DOI：

XU Xuexuan, CUI Xiaolin, MU Xingmin. Soil-water Conservation and Hydro-environment on Loess Plateau[J]. Bulletin of Soiland Water Conservation, 1999, 18(5): 44-48. DOI：

摘要

通过分析黄土高原水环境背景特征，认为黄土高原雨水环境差；人工林草地土壤水分长期处在亏缺状态，高产农田、林草、坡地生产力受水分环境制约严重；径流水可利用程度低。生态环境的改善必须借助于水土保持的生物、工程等措施，首先改善水环境。水土保持措施对在水环境的影响表现为：在地块尺度上，可以汇集雨水、增加入渗、满足作物、植物生长的水分需求平衡。但高耗水的林草地、水分亏缺严重，在植被建造中还应因地制宜。水土保持措施在流域尺度上表现为增加流域贮水、蒸发，但使流域径流有所减小。

Abstract

Through analysing the characteristics of hydro-environment on the loess plateau

It is pointed that the precipitation of loess plateau has two characters： one is low

the other is intensive

which can result in a strong soil and water loss. Soil moisture is always in stress statue there. The productivity of basic farmland and forest-pasture land has been seriously stressed by water shortage

and the runoff is affected by precipitation. The eco-environment should be improved by biological

engineering and chemical measures for soil and water conservation (SWC) in order to adjust water condition on the loess plateau. The SWC measures can bring impacts on hydro-environment in two aspects. (1) In land section scale

it can harvest rainwater and increase soil infiltration rate

which made soil can provide more water to plant; (2) For some high water consumption land

such as forest and pasture

the water stress can only be modified

and the hydro-environment should be considered into the constructing of vegetation; (3) For watershed scale

the SWC can increase water storage and evaporation

meanwhile

it can decrease runoff.

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Related Institution

Xi’an University of Technology

Institute of Soil and Water Conservation, Yan’an

State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling

Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling

College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling

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