摘要
研究分析了江淮流域地下水位年内和年际变化规律以及地下水位与初始土壤湿度、初始地下水位、温度、日照、参考作物蒸散量、蒸发和降水的关系。并用逐步回归方法建立了地下水位预报模型;用相关分析法求出给水度,并建立耕作层排渍模型。
The annual and interannual variances of groundwater level and the relationships among the groundwater level and the initial soil moisture,the initial groundwater level,temperature,sunshine,reference crop evapotranspiration,evaporation,precipitation in the Jianghuai Valley were analyzed.The forecasting models of groundwater level were built with step regression method,the degrees of providing water were calculated with relative analyses method and the draining waterlogging model in cultivated soil layers was built.
出处
《中国生态农业学报》
CAS
CSCD
2005年第3期91-94,共4页
Chinese Journal of Eco-Agriculture
基金
国家科技攻关项目(2001BA509B13)
国家自然科学基金项目(303708142)
教育部留学回国基金项目资助
关键词
江淮流域
地下水位
变化规律
预报模型
耕作层排渍模型
Groundwater level,Forecasting model of groundwater level,Draining waterlogging model in cultivated soil layers,Jianghuai Valley
