【作者】 薛俊英； 陈喜； 张志才； 张竞秋；

【Author】 Xue Junying;Chen Xi;Zhang Zhicai;Zhang Jingqiu;State Key Laboratory of Hydrology Water Resources and Hydraulic Engineering,Hohai University;

【机构】 河海大学水文水资源与水利工程科学国家重点实验室；

【摘要】 本文以中国科学院桃源农业生态试验站的红壤坡地作为研究对象,采用美国地质调查局地下水数值模拟软件MODFLOW及其扩展包VSF子程序,建立了适用于红壤坡地土壤水运移的变饱和流数值模型。采用蒙特卡洛随机参数采样法分别对坡地的上层(0～40cm),下层(40～110cm)和上下两层流量过程进行不确定性分析,确定出红壤坡地的土壤水力参数范围。并将MODFLOW-VSF程序与Levmar参数优化程相耦合序推求出适用于红壤坡地的土壤水力参数,并利用该参数模拟出红壤坡地的水动力过程。更多还原

【Abstract】 In this papar,red soil sloping land in Taoyuan agriculture ecological experiment station of CAS was selected for developing a numerical model of soil moisture movement hy using the USGS groundwater simulation software MODFLOW and its expansion package VSF subroutine.Monte-Carlo random sampling method was used for analysising uncertainty of the the upper(0～40 cm),lower(40～110 cm) and upper and lower levels discharge processes.By the uncertainty analysis,soil hydraulic parameters ranges were determined.The MODFLOW-VSF routine was integrated with the optimization program to deduce soil hydraulic parameters for red soil sloping land.Using the optimized parameter,we can simulate hydrodynamic process of red soil sloping land.更多还原