摘要
对国内外土壤水分动力学参数研究进行概述和分析。目前研究土壤水分动力学参数的方法 ,开始从实验测量向以基本参数为基础的数学模拟过渡 ,实验和计算手段不断更新 ,考虑的因素更加完全 ;但是各种方法都有其局限性 。
The present situation of soil water dynamic parameters research are summarized and analyzed in this paper. In recent researches, soil water dynamic parameters are determined not only with experimental measures, but also with mathematical models based on elemental data. As the experiment conditions and simulating models are improved constantly, more and more factors concerned with the parameters are considered. But there are still shortages or limitations, and therefore are difficult in simulating practical soil water movement for all methods.
出处
《灌溉排水》
CSCD
北大核心
2002年第1期72-75,F003,共5页
Irrigation and Drainage
基金
引进国外杰出人才基金项目 (982 60 2)
关键词
土壤水分
特征曲线
导水率
比水容量
扩散率
动力学参数
soil water characteristic curve
conductivity
specific volume
diffusivity
mathematical simulation
evaluation
