FRACTAL ANALYSIS OF VEGETATION PATTERNS IN THE LOWER TARIM RIVER

	FRACTAL ANALYSIS OF VEGETATION PATTERNS IN THE LOWER TARIM RIVER
	Ma Yinglian; Chen Xi; Peng Shuhong; Xu Hailiang; Ling Hongbo
刊名	FRESENIUS ENVIRONMENTAL BULLETIN
	2015
英文摘要	Conventional measures of vegetation patterns are based mainly on vegetation indices or landscape metrics. Common approaches to fractal analysis of vegetation patterns are limited by their self-similarity and the self-affine structures of landscape. This study has examined the spatial patterns of vegetation diversity using two self-similarity cell models in the lower Tarim River in northwestern China. Fourier transforms and spectral analysis were used to estimate fractal dimensions. The fractal parameter relationships of the vegetation density distribution were explored using empirical analyses. To perforn a simple demonstration of vegetation patterns, selected NDVI values were abstracted from Landsat ETM+ image sources for four periods from 1999 to 2009. The objectives were to understand how the scale-free property and the long-range spatial correlation of vegetation density distributions were affected by the ecological water conveyance project (EWCP). The results showed that vegetation density distributions were negatively autocorrelated over the four periods and that vegetation densities further away from the river did not all follow the exponential form. Spatial concentration and decentralization processes operated concurrently in the spatial distribution of vegetation density. The influence of the EWCP near the river was greater than farther away from the river, and the vegetation distribution range became more and more complex during water conveyance activities from 1999 to 2009. The fractal dimension of vegetation patterns gradually decreased with declining vegetation, but the profile dimension in the lower Tarim River became more complex.
收录类别	SCI
原文出处	http://www.psp-parlar.de/details_artikel.asp?tabelle=FEBArtikel&artikel_id=5725&jahr=2015
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/6877]
专题	深圳先进技术研究院_数字所
作者单位	FRESENIUS ENVIRONMENTAL BULLETIN
推荐引用方式 GB/T 7714	Ma Yinglian,Chen Xi,Peng Shuhong,et al. FRACTAL ANALYSIS OF VEGETATION PATTERNS IN THE LOWER TARIM RIVER[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2015.
APA	Ma Yinglian,Chen Xi,Peng Shuhong,Xu Hailiang,&Ling Hongbo.(2015).FRACTAL ANALYSIS OF VEGETATION PATTERNS IN THE LOWER TARIM RIVER.FRESENIUS ENVIRONMENTAL BULLETIN.
MLA	Ma Yinglian,et al."FRACTAL ANALYSIS OF VEGETATION PATTERNS IN THE LOWER TARIM RIVER".FRESENIUS ENVIRONMENTAL BULLETIN (2015).