摘要
通过对夏玉米和冬小麦生长季节期间土壤水动态观测试验 ,探讨了地下水浅埋条件下土壤水动态的变化规律。试验结果表明 ,浅埋地下水对土壤水动态具有很大影响 ,农田土壤水分变化主要发生在根区深度 0～ 5 0 cm的土壤。土壤水动态变化规律为实施土壤水分实时调控。
A field experiments was conducted to study soil moisture and water potential changes in farmlands with a shallow water table during summer maize and winter wheat seasons. The results indicate soil moisture and water potential change frequently in soil layer of 0～50 cm. These results can be considered as theoretical basis for real time irrigation.
出处
《灌溉排水》
CSCD
北大核心
2001年第3期25-28,共4页
Irrigation and Drainage
基金
国家自然科学基金资助项目 ( 4 0 0 710 0 8)
关键词
土壤水
地下水
浅埋条件
动态变化规律
soil water
groundwater
soil moisture and water potential
