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- 2016
基于最佳分析粒度的矿区景观格局分析
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Abstract:
以徐州市贾汪矿区1983年、1993年、2003年和2013年4期Landsat影像为数据源,综合景观格局指数粒度效应和信息损失评价法,确定了贾汪矿区景观格局指数的最佳分析粒度为60 m。在该粒度下,基于景观水平和斑块水平对区域景观格局演化进行分析。结果表明,在景观水平上,2003年以前,区域景观格局在煤炭资源的开采、城市化等的驱动下,景观格局呈破碎化、异质化和连通性降低的趋势;2003年以后,由于矿区土地复垦项目的实施、城乡统筹发展和区域连片发展,使区域景观格局呈连续化、均衡化和连通性增大的趋势。在景观类型尺度上,耕地、建设用地和水域随时间的变化最为活跃,1983~2003年间,耕地、水域受煤炭资源开采等活动的影响,斑块趋于破碎化,连通性降低,而建设用地在城市化发展的驱动下,变得更为复杂;2003~2013年间,耕地、水域和建设用地呈现高连通性、斑块规则化的趋势
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