摘要
根据土壤水动力学原理建立了土壤根系吸水一维运动模型 ,并用有限差分法对田间土壤水运动进行数值模拟 ,且用室内土柱试验资料对模型加以检验 .以冬小麦为例 ,对不同灌水定额方案 ,做了数值模拟计算 。
Based on soil water dynamics principles,a soil water one dimension movement model concerning roots absorbing water is set up.Then numerical simulation of field soil water movement is conducted with the method of limited difference,and verified with indoor experiments data.And with winter wheat,a few irrigation quota schemes are numerically simulated,and the optimization irrigation schedule of winter wheat is predicted.
出处
《华北水利水电学院学报》
2003年第1期5-8,共4页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
土壤
水分运动
数值计算
灌水定额
灌溉制度
soil water movement
numerical simulation
irrigation requirement
irrigation schedule
