CONG Huai-jun,JIAO Feng,WEN Zhong-ming.Makeup of Soil Water Reservoir and Its Quantitative Analysis in the Loess Hilly Region——A Case Study of Ansai County, Shanxi Province[J].Research of Soil and Water Conservation,2009,16(02):15-18,23.
基于GIS的黄土丘陵区土壤水库库容组成及其定量分析——以陕北安塞县为例
- Title:
- Makeup of Soil Water Reservoir and Its Quantitative Analysis in the Loess Hilly Region——A Case Study of Ansai County, Shanxi Province
- 分类号:
- S152.7
- 摘要:
- 以空间图形和数据库为基础,对土壤水库的相关技术指标、研究深度和静态库容组成等进行了描述、界定和计算.研究认为:安塞县5m深土层土壤水库总库容为1419.78mm/416156万m3,其中死库容占土壤总库容的21.08%,重力库容占土壤总库容的13.82%,有效库容占土壤总库容的65.10%,最大有效库容占总库容的78.92%;从土地利用类型方面来看,坡耕地和荒坡地总库容量最大,分别占研究区土壤水库总库容的37.65%和36.04%;从坡度分级方面来看,>25°和10°~15°坡度级别土壤总库容量最大,分别占研究区土壤水库总库容的41.50%和30.52%;峁坡和沟坡土壤水库库容组成基本相等.
- Abstract:
- This paper expatiated on define,function and correlative technique index of soil water reservoir,made certain its research depth,and calculated static state capacity of soil water reservoir.The results showed:In 5 m depth soil of research area,total holding capacity is 1 419.78 mm/416.156 million m3.Unavailable volumetric capacity is 21.08% of total holding capacity.Gravitational volumetric capacity is 13.82% of total holding capacity.Available volumetric capacity is 65.10% of total holding capacity.The greatest available volumetric capacity is 78.92% of total holding capacity.
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备注/Memo
收稿日期:2009-2-11;改回日期:。
基金项目:国家自然基金项目(40871246);欧盟项目(FP6,037046)
作者简介:焦峰(1967- ),男,陕西省三原县人,博士,副研究员,主要从事GIS应用、水土保持与环境效应监测评价研究.E-mail:Jiaof11@126.com