摘要
通过有限差分法,用田间实测土壤水分动态资料反求冬小麦根系吸水速率,建立了由土壤水分动态资料反求的冬小麦一维根系吸水模型,同时根据实测冬小麦根长密度资料,建立了改进Feddes模型形式的冬小麦一维根系吸水模型。模拟结果表明,两模型基本能够正确反映冬小麦根系吸水的实际状况,满足生产要求。
Through finite difference method, this paper used field-measured dynamic data of soil water to simulate root-water-uptake -rate of winter wheat inversely, and a 1D root-water-uptake inverse model of winter wheat was set up. At the same time, based on the field-measured date of root-length-density, mended Feddes 1D root-water-uptake model of winter wheat was set up, too. The simulation results showed that both the two models could reflect the actual situation of root-water-uptake of winter wheat, and could meet the need of production.
出处
《节水灌溉》
北大核心
2007年第3期10-13,17,共5页
Water Saving Irrigation
基金
利用世界银行贷款发展节水灌溉项目(WCP)(ln4589-CHA)
