干旱地区农业研究Issue(5)：168-173,6.
基于HYDRU S软件的植物混掺土壤水分特征曲线分析
Analysis of soil water characteristic curve by mixed plants based on HYDRUS software
摘要
Abstract
In order to explore the effect by mixed plants to soil water holding capacity,we have taken the soil from Jingtai,Gansu for the experimental material,set up four treatments with different plants mixed proportion (such as 1%corn cobs,1%corn leaves,3%corn cobs and 3%corn leaves),and use the centrifuge method to measure the soil wa-ter characteristic curve .At the same time,utilize the HYDRUS software to simulate and calculate .The results shown that:Under the treatment with same suction and mixed proportion,the soil volumetric water content with mixed propor-tion of 3% was higher than 1% soil;Under the same mixed proportion theatment,the soil volumetric water content mixed corn leaves was higher than mixed corn cobs soil,also the soil volumetric water content with all plants mixed treat-ments were total higher than the pure soil as without any mixed .Though the different model fitting analysis for the soil water characteristic curves,have indicated that the Van Genuchten model was the best fitting model for the four treat-ments .This research results can be provided a certain reference for exploring the rule of soil water and salt movement un-der plants mixed condition in this region .关键词
混掺物/土壤水分特征曲线/模型/HYDRUSKey words
Plants addictive/soil water characteristic curve/model/HYDRUS分类
农业科技引用本文复制引用
郑健,任倩慧,赵廷红,王燕,万吉祥..基于HYDRU S软件的植物混掺土壤水分特征曲线分析[J].干旱地区农业研究,2014,(5):168-173,6.基金项目
国家自然科学基金项目（51369014）；旱区农业水土工程教育部重点实验室访问学者基金；兰州理工大学博士基金 （）
