土壤2012，Vol.44Issue(4)：665-670,6.
棉花膜下滴灌土壤水盐运移规律数值模拟
Numerical Simulation of Soil Water-salt Movement on Drip Irrigation Cotton Under Film
摘要
Abstract
This study determined the changes of soil evapotraspiralion, water content and soil salt through the growth stage of cotton planted in plastic barrel. Based on the equations of soil water movement and convection-dispersion of solute transport, HYDRUS-2D software was used to simulate the rules of soil water and salt transports on condition taking into account cotton root water uptake and soil evapotraspiration, the simulated and measured values were compared of soil moistures and salt contents. The results showed that the simulated and measured values of soil moistures and salt contents were different both in the surface and deep layers, but were close in the middle layer. Thus, HYDRUS-2D software can be used to forecast soil water and salt transports under mulch drip irrigation when sufficient observed data are obtained in cotton field.关键词
膜下滴灌/水盐运移/数值模拟/根系吸水模型Key words
Drip irrigation under mulch, Water-salt movement/ Numerical simulation/ Root water uptake model分类
农业科技引用本文复制引用
虎胆·吐马尔白,吴争光,苏里坦,牟洪臣..棉花膜下滴灌土壤水盐运移规律数值模拟[J].土壤,2012,44(4):665-670,6.基金项目
国家自然科学基金项目(51069015)、自治区"十二五"重大专项(201130103-3)和新疆水利水电工程重点学科项目资助. （51069015）
