Study on Calculation Method of Soil Water Resources in Semi-arid Plain

摘要：

The definition of soil water resources was proposed, and the computation model of soil water resources was presented in the semi-arid plain. The amount of soil water resources and its dynamic variation were obtained in growing period of wheat-corn in different hydrologic years in Xiong county. The results showed that the supply and demand of water of corn can realize the equilibrium,however the irrigated water is necessary to wheat, and above 80％ of precipitation is converted into soil water resources in the crop growth period. The research indicated the important role of soil water resources in agricultural production quantitatively, it has great important significance in relieving the actuality of water shortage and in promoting the sustainable development of water-saving agriculture.

关键词： soil water resources soil water water-saving agriculture mixed runoff model

作者: MENG Xiao WU Xian Bing

作者单位: Dept.of Hydraulic Engineering,Agricultural University of Hebei,P.R.China,071001

会议类型: 国际会议

会议名称: 2007 International Conference on Agriculture Engineering(2007年农业工程国际会议)

会议地点: 河北保定

会议语种:英文

页码: 137-141

在线出版日期: 2007-10-20（万方平台首次上网日期，不代表论文的发表时间）