激光生物学报2015，Vol.24Issue(6)：584-590,7.DOI:10.3969/j.issn.1007-7146.2015.06.016
湘江流域近30年景观格局变化研究
Study on Landscape Pattern and its change of the Xiangjiang River Watershed River region in the nearly 30 years
摘要
Abstract
The landscape data used was interpreted from the Landsat MSS and TM satellite imagary and DEM data for Hunan Province in 1980,2000 and 2010,and supported by ENVI4.7 image processing software,ARCGIS9.0 software and Fragstats3.3 software,derived the Xiangjiang River area 1980,2000 and 2010 landscape type map,calculated the three different periods of landscape pattern index,based on the analysis of the characteristics of the landscape pattern changes in the 30 years of the Xiangjiang River watershed were analyzed.The results showed that: Between 1980 and 2010,the extent of land use and human activities have enhanced the Xiangjiang River watershed,where the greatest change in the area of woodland and dry land landscape type.Woodland decreased by 1 029 km2,while the dry land in-creased by 648 km2,and the human activity disturbance increased.In the last 30 years,the area of paddy field and for-est land decreased,patch number increased and the fragmentation degree increased,with the influence of human activi-ties.Dry land landscape fragmentation degree decreased.The overall fragmentation degree in the Xiangjiang River water-shed increased,and the connectivity of the dominant patch decreases,and the control effect of the landscape dominant category is weakened.This will bring some resources and environmental issues the Xiangjiang River watershed,to strengthen the planning layout management,reasonable allocation of landscape resources,to achieve coordinated devel-opment of economy and ecological environment of the Xiangjiang River region.关键词
景观格局/景观指数/GIS/湘江流域Key words
Landscape pattern/Landscape indexes/GIS/Xiangjiang river watershed分类
生物学引用本文复制引用
陈希,王克林,祁向坤,李洪斌,李涛..湘江流域近30年景观格局变化研究[J].激光生物学报,2015,24(6):584-590,7.基金项目
国家自然科学基金项目(41071340) （41071340）
