土壤水运移的数值模拟研究  

Numerical Simulation of Soil Moisture Movement

作　　者：张志才[1] 陈喜[1] 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,南京210098

出　　处：《工程勘察》2007年第8期27-31,共5页Geotechnical Investigation & Surveying

基　　金：教育部新世纪优秀人才支持计划项目(NCET-04-0492)资助;国家自然科学基金项目(50679025)资助

摘　　要：土壤水对植物的生长、土壤溶质的运移以及土壤环境的变化起着至关重要的作用。土壤水文过程对陆地水文循环以及区域气候也起着重要的作用。土壤水的分布、运移受降雨条件、土壤特性、植被、大孔隙以及地下水等多种因素的影响,其规律复杂,因此准确评价各因素的影响是研究土壤水的关键。本文基于土壤水运动的物理过程,提出了土壤水数值模型。利用江苏徐州汉王水文试验站实测资料,对模型进行了检验。并根据模拟结果分析研究了植被、大孔隙以及地下水对土壤水分布和运移的影响。Soil water plays an important role in vegetation Soil hydrological process controls the water transfer of growing, solute transposition and soil environment, hydrological cycle and the region climate. Affected by precipitation, soil characteristics, vegetation, macropore, groundwater, etc, soil moisture distribution and transfer are very complicated. Therefore, accurate estimation of each influence factor is very important in soil water investigation. Based on the physical process of soil moisture dynamics, a computation model for soil moisture movement is proposed in the paper. This hydrological model is calibrated by the observation data at the Hanwang Hydrological Experiment Station, Jiangsu groundwater on the distribution and movement of soil province. The influences of vegetation, macropore and moisture are investigated through the model simulation.

关 键 词：土壤水 植被 大孔隙 地下水 

分 类 号：P641.131[天文地球—地质矿产勘探]