Regional ecological security dynamic asessment of Jiangxi Province based on RS and GIS

doi:10.13466/j.cnki.lyxyel.2015.02.020

Abstract

Abstract: Based on RS and CIS technoo ,a regiona co-scoi assn sstem comsits of regiona ecological background, coystem structure and stabli,landscape structure and exemal inerferene combined wih cological securit asesnn and forest costem heath evaluation . In this study ,evaluation unit was a grid which is 250m x 250m With the spp of coficinie of vriaio metod AHP and comprehensive evaluation mechod,a set of regiona cologica scurit asesn was cnstncted The resuts analyzed the eological securit and is trend in Jiangxi povinice Fom 20000 to 2010. During this period,, ecological securit index mose from 63. 0794 to 63.2933. They showed that the co-securt indexes value was larger and the ecologicac security situation was in a reavl sate level which indicaed that this rgion was gra clolcal stale and securwe. the cological comlition of Jiangi prvine had improved. In the analysi of cological securit evaluation resuls of 11 cities in Jiangxi Province, we find that Fuhou City ,Jingdeche Ciy ,Ji' an City,Yichum City and Yingan City have higher levels of colocal scurirytwhmie the coloicac scurit le of Pingxing City ,Nanchang, Xingu City ,Shangao City and Ganzhou City is rlatively lower.

Key words: Key, wrds, srgirinl, cologigac, seurir, asesnsenigdRs:gISs

CLC Number:

X171.1

YANG shanshan, Z0U changxin, SHEN weishou, SHEN rumping, ZUO huiting, Li zhongliang. Regional ecological security dynamic asessment of Jiangxi Province based on RS and GIS[J]. FOREST RESOURCES WANAGEMENT, 2015, (2): 107-115.

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