Disturbance of mining activities to ecological land measured by ecological connectivity
Ecological land is the key factor to maintain ecological stability; however ecological land is always damaged by mining.In order to get the disturbing influence from mines to the ecological land,2 different time-point land,using maps of Wuan city,in 2005,2009 respectively,are used to extract the distribution of ecological land in the study area for a calculation of ecological connectivity index of the whole area.Meanwhile,the paper indicates the fragmentation trend with the important values of patches.Its necessary to take the affected distance from mines to ecological land into consideration,therefore the area is divided into 2 gradients with 3 km as a gradient and the distribution and metastasis of important patch in each gradient are analyzed.The conclusion of this method concentrates on two aspects.Firstly,the ecological connectivity index of whole area shows a downward trend.Secondly,there is a relationship between time,location and mining influence on environment.
mining activities ecological disturbance landscape connectivity
Y.H.Rao J.J.Zhang
School of Land Science and Technology, China University of Geosciences(Beijing), Beijing, China
国际会议
北京
英文
257-262
2014-10-16（万方平台首次上网日期，不代表论文的发表时间）