作物生长条件下层状土壤水分运动数值模拟  

A Numerical Model of Layered Soils Moisture Equation under the Condition of Plant Consumption

作　　者：马英杰[1] 陈大春[1] 虎胆.吐马尔白 

机构地区：[1]新疆农业大学水利与土木工程学院,乌鲁木齐830052

出　　处：《新疆农业大学学报》2006年第4期70-72,共3页Journal of Xinjiang Agricultural University

基　　金：新疆农业大学水利水电工程重点学科项目;新疆维吾尔自治区高校创新群体基金项目(XJEDU2005G02)

摘　　要：本文根据野外实测资料,分析了作物根系的生长规律,确定了作物腾发量,并用多元回归分析方法,拟合了作物根系吸水的数学模型,通过对一维土壤水分运动方程采用数值模拟的方法,分析了作物生长条件下层状土壤水分运动过程,与实测值比较认为拟合结果较好,表明所建立的根系吸水模型是合适的。The numerical model of the crop root uptake is developed with the help of multiple regression on the basis of the data measured in field. This paper also analyses the wheat root＇s rule of growth and evaporation. The one-diameter layered soils moisture equation under the condition of plant consumption is simulated, the simulating results are better by comparing simulated results with the data measured in field. It is shown that the numerical model of the crop root uptake is right.

关 键 词：根系吸水率 回归分析 层状土壤 

分 类 号：S152.72[农业科学—土壤学]