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	Analysis of spatial variability of the fractal dimension of soil particle size in Ammopiptanthus mongolicus' desert habitat
	Jia, X. H.; Li, X. R.; Zhang, J. G.; Zhang, Z. S.
刊名	ENVIRONMENTAL GEOLOGY
	2009-09-01
卷号	58期号:5页码:953-962
关键词	Ammopiptanhus mongolicus Psammophytic vegetation Fractal dimension of soil particle size Spatial variation
ISSN号	0943-0105
DOI	10.1007/s00254-008-1575-7
通讯作者	Jia, X. H.(jiaxiaohong@126.com)
英文摘要	Quantitative analyses of soil texture with the help of the fractal dimensions of soil particle sizes show that fractal dimensions exhibit a significant linear negative correlation with the sand content (> 0.1 mm) and a significant power-law positive correlation with the content of clay and silt (< 0.05 mm) (P < 0.0001). However, results revealed that the range of spatial heterogeneity was not restricted to the range of the shrub canopies of the dominant Ammopiptanthus mongolicus communities in the desert region. These results did not support the theory of the "fertile island effect" arising from the interception of fine-grained materials including dust by the shrubs in a desert ecosystem. We hypothesize that the high spatial heterogeneity existing beyond the scope of the shrub canopies and the lack of proper soil substrate conditions required for the invasion of other species, lead to the steady dominance of A. mongolicus communities in these arid desert regions.
收录类别	SCI
WOS关键词	MULTISCALE SOURCES ; HETEROGENEITY ; ECOSYSTEM ; FRAGMENTATION ; PATTERNS ; STEPPE
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000269014000005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556202
专题	寒区旱区环境与工程研究所
通讯作者	Jia, X. H.
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Jia, X. H.,Li, X. R.,Zhang, J. G.,et al. Analysis of spatial variability of the fractal dimension of soil particle size in Ammopiptanthus mongolicus' desert habitat[J]. ENVIRONMENTAL GEOLOGY,2009,58(5):953-962.
APA	Jia, X. H.,Li, X. R.,Zhang, J. G.,&Zhang, Z. S..(2009).Analysis of spatial variability of the fractal dimension of soil particle size in Ammopiptanthus mongolicus' desert habitat.ENVIRONMENTAL GEOLOGY,58(5),953-962.
MLA	Jia, X. H.,et al."Analysis of spatial variability of the fractal dimension of soil particle size in Ammopiptanthus mongolicus' desert habitat".ENVIRONMENTAL GEOLOGY 58.5(2009):953-962.

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