基于HYDRUS-2D模型模拟耕荒地水盐运移规律  

The moving rule of salt and water in cultivated land and saline wasteland based on HYDRUS-2D model

作　　者：李亮[1] 李美艳 张军军 王长生 李正中 

机构地区：[1]中国水利水电科学研究院牧区水利科学研究所,内蒙古呼和浩特010020 [2]内蒙古自治区水利水电勘测设计院,内蒙古呼和浩特010020 [3]内蒙古河套灌区解放闸灌域沙壕渠试验站,内蒙古杭锦后旗015400

出　　处：《干旱地区农业研究》2014年第1期66-71,共6页Agricultural Research in the Arid Areas

基　　金：中国水科院科研专项项目(MK2013J05)

摘　　要：在野外实测资料的基础上,利用HYDRUS-2D模型对作物生育期耕地与盐荒地间土壤水盐的迁移进行了模拟和分析。结果表明,在强蒸发作用下,盐分在表层土壤中积聚,20、40、70cm土层分别上升了67.23%、62.37%、37.2%。经检验,HYDRUS-2D模型对土壤含水率和含盐率运移的模拟具有较高精度,反映出盐分积聚和水分运移规律。The moving rule of salt and water in cultivated land and saline wasteland during crops growth period in Hetao Irrigation District, Inner Mongolia has been studied. Based on the field measured data, the movement of salt and soil moisture in cultivaed land and saline westeland by using the HYDRUS-2D model has been simulated and analyzed. The results showed that function by strong evaporation, the salt will be accumulated in the soil surface, in the soil layers of 20, 40 cm and 70 cm, the salt content will be increased 67.23%, 62.37% and 37.2% respectively. Through examined, the simulation of soil moisture and salt content moving by the HYDRUS-2D model in horizontal and vertical direction indicated a high precision, reflected the rule of salt accumulated and soil moisture moving.

关 键 词：水盐运移 HYDRUS-2D模型 盐荒地 河套灌区 

分 类 号：S156.4[农业科学—土壤学]