收稿日期: 2007-09-11
修回日期: 2008-03-19
网络出版日期: 2008-06-10
基金资助
国家自然科学基金项目“种植业结构调整对黄土沟壑区农田水分生态效应的影响”（编号：50209016）；陕西省自然科学基金项目“黄土沟壑区种植业结构调整的水资源最优调控模式研究”（编号：2007E235）资助.
Progress and Perspective of Spatial Variability Study on Unsaturated Soil Water Movement Parameters
Received date: 2007-09-11
Revised date: 2008-03-19
Online published: 2008-06-10
非饱和土壤水分运动参数的空间特征是科学认识大尺度土壤水分动态变化的基础和先决条件。在参考国内外大量文献的基础上，对非饱和土壤水分运动参数的研究进展从模型研究到空间尺度研究进行了分析与评述，指出机理模型研究是未来土壤水分运动参数空间变异性研究的方向，而尺度研究目前研究的精度不够；在对土壤水分运动参数的空间变异性研究各类方法分析和归纳后，指出土壤水分运动参数变异性研究的方法包括直接测定方法和间接估计方法两种，并对各种方法的优缺点及适用条件进行了总结；最后指出土壤水分运动参数空间变异性研究存在的问题主要集中在土壤水分运动参数的空间变异性结果的标准化问题和不同尺度土壤水分运动参数的相互转化等问题。
宋孝玉 , 蒋俊 , 马玉霞 , 李亚娟 . 非饱和土壤水分运动参数空间变异性研究进展与展望[J]. 地球科学进展, 2008 , 23(6) : 613 -618 . DOI: 10.11867/j.issn.1001-8166.2008.06.0613
Spatial characteristics of unsaturated soil water movement parameter are the base and precondition of scientific understanding soil moisture dynastic variation of large-scale. On the basis of great deal of the domestic and overseas reference, the progress of spatial variability study on unsaturated soil water movement parameter have been analyzed and reviewed from the model to spatial scale research, pointed that mechanism model research was the direction of spatial variability study on unsaturated soil water movement parameter, and the precision of scale research was inadequate. After analyzed and concluded the methods of spatial variability study on unsaturated soil water movement parameter, indicated that included direct and indirect method, the advantage and disadvantage of which have been summarized. In the end, the problem of spatial variability study on unsaturated soil water movement parameter have been discussed which mostly focused on the standardization of results of spatial variability study on unsaturated soil water movement parameter and inter-transformation of unsaturated soil water movement parameter on the different scale，which is the direction for the further research.
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