降雨灌溉入渗条件下土壤水分运动的数值模拟  

Numerical Simulation of Soil Water Movement under Rainfall and Irrigation Infiltration Condition

作　　者：周春华[1] 何锦[1] 郭建青[1] 郑力[2] 

机构地区：[1]长安大学环境科学与工程学院,西安710054 [2]中国科学院石家庄农业现代化研究所,石家庄050021

出　　处：《中国农村水利水电》2007年第3期40-43,共4页China Rural Water and Hydropower

基　　金：中国科学院知识创新工程重要方向项目(KZCX3-SW-428)。

摘　　要：根据中科院栾城农业生态系统综合试验站和栾城县气象站的常规观测资料,运用SWAP软件对太行山山前平原-河北省栾城县田间土壤水分运动进行了数值模拟。从土壤含水量及土水势等方面,初步分析了降雨入渗补给条件下土壤水分运动的规律,运用实际观测资料与数值模拟结果进行了初步分析,论述了降雨与土壤水、地下水之间的转换关系。通过分析和讨论,探求了大埋深条件下降雨入渗过程,初步揭示了降雨入渗对地下水位变化的影响。Based on the data from Luancheng Agriculture Experimental Station of CAS and Luancheng Weather Station, numerical simulation of soil water movement of farmland in the piedmont plain of the Taihang Mountains is conducted using SWAP model as an analysis tool. The rule of soil water movement under rainfall and infiltration condition is analyzed preliminarily from the aspects of soil water content and soil water potential. The transform relation between rainfall, groundwater and soil water is discussed through analysis of the observed data and the result of the numerical simulation. The process of the rainfall infiltration and the influences on ground water level are also discussed through analysis of the process of rainfall-infiltration with large burial depth of groundwater.

关 键 词：土壤水分运动 数值模拟 SWAP模型 降雨入渗补给 

分 类 号：S152.7[农业科学—土壤学]