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.
出处
《干旱地区农业研究》
CSCD
北大核心
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)
关键词
水盐运移
HYDRUS-2D模型
盐荒地
河套灌区
water and salt movement
HYDRUS - 2D model
saline wasteland
Hetao Irrigation District
