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	Predicting unsaturated hydraulic conductivity of soil based on some basic soil properties
	Zhuang J. ; Nakayama K. ; Yu G. R. ; Miyazaki T.
	2001
英文摘要	Soil hydraulic conductivity is a crucial parameter in modeling Row process in soils and deciding water management. In this study, by combining the non-similar media concept (NSMC) to the one-parameter model of Brooks and Corey, a new NSMC-based model for estimating unsaturated hydraulic conductivity of various soils was presented. The main inputs are soil bulk density, particle-size distribution. soil water retention characteristic and saturated hydraulic conductivity of soil. The results indicated that the NSMC-based model could generally more accurately predict unsaturated hydraulic conductivity of soils, as compared to four one-parameter models and van Genuchten-Mualem model. This study. by introducing NSMC, provided a new way to incorporate soil physical heterogeneity into soil hydraulic simulation, and hence NSMC-based approach is expected to improve efficiency of the existing models in the simulation of soil water flow. (C) 2001 Elsevier Science B.V. All rights reserved.
出处	Soil & Tillage Research
卷	59
期	3-4
页	143-154
收录类别	SCI
语种	英语
ISSN号	0167-1987
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/22190]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Zhuang J.,Nakayama K.,Yu G. R.,et al. Predicting unsaturated hydraulic conductivity of soil based on some basic soil properties. 2001.

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