摘要
根据农田土壤水量平衡原理,对甘肃河西绿洲灌区农田水分变化进行动态模拟和分析,模拟结果精度高。由水分指数评价土壤含水量的实际状况,确定了灌水的具体日期,为控制土壤水分,提高水分生产率,实现节水与高效提供了科学依据。
This paper, based on the water balance principle of farmland soil, makes a dynamic simulation and analysis on moisture content changes of farmland in Hexi Oasis irrigation district in Gansu. The precision of simulating result is very high. The moisture content exponent is used to estimate actual situation of soil moisture content, and the exact date of irrigation is ascertained. The results provide a scientific basis for controlling soil moisture content, improving moisture content efficiency, and realizing water-saving and high-efficiency.
出处
《农业系统科学与综合研究》
CSCD
2009年第1期59-62,68,共5页
System Sciemces and Comprehensive Studies In Agriculture
基金
教育部"春晖计划"科研合作项目(Z2004-1-62043)
甘肃省教育厅科研项目(0410-03)
