Scaling analysis of soil water retention parameters and physical properties of a Chinese agricultural soil

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	Scaling analysis of soil water retention parameters and physical properties of a Chinese agricultural soil
	Liu, ZX; Wang, ZY; Shu, QS; Si, BC; Liu, ZX, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
刊名	AUSTRALIAN JOURNAL OF SOIL RESEARCH
	2009
卷号	47 期号:8 页码:821-827
关键词	Soil Water Retention Parameters Soil Physical Properties Multifractal Analysis Spatial Variability
ISSN号	0004-9573
英文摘要	Measurement scale of soil water retention parameters is often different from the application scale. Knowledge of scaling property of soil hydraulic parameters is important because scaling allows information to be transferred from one scale to another. The objective of this study is to examine whether these parameters have fractal scaling properties in a cultivated agricultural soil in China. Undisturbed soil samples (128) were collected from a 640-m transect at Fuxin, China. Soil water retention curve and soil physical properties were measured from each sample, and residual water content (theta(r)), saturated soil water content (theta(s)), and parameters alpha(vG) and n of the van Genuchten water retention function were determined by curve-fitting. In addition, multiple scale variability was evaluated through multifractal analyses. Mass probability distribution of all properties was related to the support scale in a power law manner. Some properties such as sand content, silt content, theta(s), and n had mono-fractal scaling behaviour, indicating that, whether for high or low data values, they can be upscaled from small-scale measurements to large-scale applications using the measured data. The spatial distribution of organic carbon content had typically multifractal scaling property, and other properties - clay content, theta(r), and alpha(vG) - showed a weakly multifractal distribution. The upscaling or downscaling of multifractal distribution was more complex than that of monofractal distribution. It also suggested that distinguishing mono-fractals and multifractals is important for understanding the underlying processes, for simulation and for spatial interpolation of soil water retention characteristics and physical properties.
学科主题	Soil Science
语种	英语
WOS记录号	WOS:000272610100008
资助机构	11th Five-Year Plan of National Scientific and Technological Supporting Project in China [2008BADA4B03, 2006BAD 02A 12]; Chinese Academy of Sciences [KSCX2-YW-N-004]
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/53989]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Liu, ZX, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, ZX,Wang, ZY,Shu, QS,et al. Scaling analysis of soil water retention parameters and physical properties of a Chinese agricultural soil[J]. AUSTRALIAN JOURNAL OF SOIL RESEARCH,2009,47(8):821-827.
APA	Liu, ZX,Wang, ZY,Shu, QS,Si, BC,&Liu, ZX, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2009).Scaling analysis of soil water retention parameters and physical properties of a Chinese agricultural soil.AUSTRALIAN JOURNAL OF SOIL RESEARCH,47(8),821-827.
MLA	Liu, ZX,et al."Scaling analysis of soil water retention parameters and physical properties of a Chinese agricultural soil".AUSTRALIAN JOURNAL OF SOIL RESEARCH 47.8(2009):821-827.