吉林大学学报(地球科学版) ›› 2021, Vol. 51 ›› Issue (2): 533-542.doi: 10.13278/j.cnki.jjuese.20190172
• 地质工程与环境工程 • 上一篇
丁宇雪1, 周向斌2, 初炜钰3, 毛龙1, 孙迪4, 孙瑞棋4
Ding Yuxue1, Zhou Xiangbin2, Chu Weiyu3, Mao Long1, Sun Di4, Sun Ruiqi4
摘要: 为了实现矿业城市生态安全性评价,利用BJ2、GF1、ZY3等国产高分辨率卫星影像数据,采用遥感技术手段,基于GIS平台,构建景观安全评价体系。通过获取2017年度研究区内各土地资源类型分布现状数据,进行景观指数(破碎度、分离度、优势度、干扰度、脆弱度、生态风险度)计算,逐网格剖析后采用普通Kriging插值法(半变异函数)对研究区域的景观生态安全度进行定量分析与评价。结果表明:研究区内大部分地区景观生态安全处于中、中高和高水平,面积为538 951.58 hm2,占研究区面积的86.75%,呈现由矿产资源集中开采区向其外部、平原区向低山丘陵区安全等级逐渐升高,生态环境逐渐转好的趋势;低、中低安全区总面积为82 342.18 hm2,占研究区面积的13.25%,景观生态安全仍存在较大问题,需引起地方政府关注。
中图分类号:
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