摘要
文章根据多年实际观测资料，在土壤水分平衡参数模拟方法的基础上，利用初始土壤有效水分贮存量、降水量和实际蒸散量３要素，建立了０～５０ｃｍ土层的土壤水分动态监测模式，确定了各项参数的计算方法．通过１１个站点两年的检验和试用，对主要农作物春小麦和春玉米农田的水分状况监测准确率达８０％以上．同时，对两个站点的土壤水分进行了预报，准确率平均为９２％．
Based on the simulation of soil water balance parameters,a dynamic model was developed to monitor soil moisture content in 0～50 cm soil layer using the observational data for many years.The model uses effective moisture storage of initial soil,precipitation and actual evapotranspiration as basic elements to determine the parameters of the model. Through the test and application of the model in 11 stations,the monitoring accuracy of moisture condition for spring wheat and corn was higher than 80%,and the mean forecast accuracy of soil moisture in 2 stations was 92%.
出处
《应用气象学报》
CSCD
北大核心
1999年第1期72-79,共8页
Journal of Applied Meteorological Science
基金
内蒙古科委资助
关键词
雨养农业区
土壤水分
动态监测模式
实际蒸散量
Rain fed agricultural region Soil moisture content Dynamic monitoring model Actual evapotranspiration
