山西农业大学学报（自然科学版）2016，Vol.36Issue(10)：725-734,10.
2000-2014年大通县植被覆盖时空变化研究
Temporal and spatial variations of vegetation coverage from 2000 to 2014 in Datong county
摘要
Abstract
Obj ective]In order to study the vegetation changes in Datong county.[Methods]based on the US Landsat TM satellite remote sensing data,and through ArcGIS10.0 and ENVI 5.1 software,extracted and analyzed the spatial and temporal variation of vegetation coverage characteristics and reasons for the changes overall Datong county in dif-ferent periods,combined with the DEM terrain data extraction factor,we studied the effects of altitude on different vegetation coverage change.[Results]The results showed that:the average vegetation coverage in 2000,2005,2010, 2014 in Datong county were 73.57%,67.53%,56.13%,69.18%,the area of vegetation coverage regional and vege-tation coverage stable region over 0.65,reached more than 60%.The vegetation coverage was in good condition,with increasing altitude,the vegetation coverage showing the overall downward trend after the first increase,less than 3500m altitude zone,high and higher vegetation coverage accounting for more than 40%,but with increasing eleva-tion,vegetation coverage decreased significantly.[Conclusion]The main cause of vegetation coverage in Datong county of dynamic change was the combined effect of human activities and socio-economic policy,effective policy guidance and forest ecology build safety barrier were the major factors in Datong county of which the vegetation coverage was in-creased.关键词
植被覆盖度/时空变化/地形因子/GISKey words
Vegetation coverage/Temporal and spatial variation/Topographic factors/GIS分类
资源环境引用本文复制引用
冯亚杰..2000-2014年大通县植被覆盖时空变化研究[J].山西农业大学学报（自然科学版）,2016,36(10):725-734,10.基金项目
青海民族大学2015年校级理工自然科学项目(2015XJZ23) （2015XJZ23）
