【摘要】 本文以霍林河南露天矿为研究区,利用该区1986年、1996年、2008年、2013年四期遥感影像,在ArcGis10.0及Fragstasts4.0软件支持下,分析矿区近27年的景观格局变化,进而研究开矿导致的景观生态风险变化情况,结果表明:(1)从景观水平对研究区景观格局进行分析,研究结果得出由于矿产资源开发活动的影响,研究区内斑块总量增多,联接度提高,相对应的景观破碎性、景观多样性呈现增加的趋势,景观格局的稳定性逐渐下降。(2)通过计算得到的各时期景观生态风险指数表明,在人类活动的干扰作用下,研究区内景观生态风险呈现持续增加的趋势,由1986年的1.1999增加到2013年的1.4599,但土地复垦面积的增加在一定程度上降低了生态风险指数增加的速度。更多还原

【Abstract】 Under the support of geographic information system software technology,the Huolinhe south open-pit mine as the research area,the study area in 1986,1996,2008 and 2013 four period remote sensing image as the data source,in ENVI5.0,ArcGis10.0 and Fragstasts4.0 software support,to analysis the land use and landscape pattern change in recent 27 years.And then reaearch the changes of landscape ecological risk caused by mining,the main conclusions are as follows:(1)T The plate number,fragmentation,diversity was increased.The landscape pattern stability decreased.(2)The landscape ecological risk was increased,its index from 1.1999 in1986 to 1.4599 in 2013,but the increase of land reclamation area cut down the increased speed of the ecological risk index.更多还原