A measure of spatial stratified heterogeneity

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	A measure of spatial stratified heterogeneity
	Wang, Jin-Feng; Zhang, Tong-Lin; Fu, Bo-Jie
刊名	ECOLOGICAL INDICATORS
	2016-08
卷号	67 页码:250-256
关键词	Spatial stratified heterogeneity q-Statistic Probability density function
英文摘要	Spatial stratified heterogeneity, referring to the within-strata variance less than the between strata variance, is ubiquitous in ecological phenomena, such as ecological zones and many ecological variables. Spatial stratified heterogeneity reflects the essence of nature, implies potential distinct mechanisms by strata, suggests possible determinants of the observed process, allows the representativeness of observations of the earth, and enforces the applicability of statistical inferences. In this paper, we propose a q-statistic method to measure the degree of spatial stratified heterogeneity and to test its significance. The q value is within [0,1] (0 if a spatial stratification of heterogeneity is not significant, and 1 if there is a perfect spatial stratification of heterogeneity). The exact probability density function is derived. The q-statistic is illustrated by two examples, wherein we assess the spatial stratified heterogeneities of a hand map and the distribution of the annual NDVI in China. (C) 2016 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/35517]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Wang, Jin-Feng,Zhang, Tong-Lin,Fu, Bo-Jie. A measure of spatial stratified heterogeneity[J]. ECOLOGICAL INDICATORS,2016,67:250-256.
APA	Wang, Jin-Feng,Zhang, Tong-Lin,&Fu, Bo-Jie.(2016).A measure of spatial stratified heterogeneity.ECOLOGICAL INDICATORS,67,250-256.
MLA	Wang, Jin-Feng,et al."A measure of spatial stratified heterogeneity".ECOLOGICAL INDICATORS 67(2016):250-256.