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OALib Journal期刊
ISSN: 2333-9721
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基于景观格局的常州市生态承载力动态分析
DOI: 10.3969/j.issn.1000-2006.2013.01.004, PP. 25-30
Keywords: 生态足迹,生态承载力,景观格局,常州
Abstract:
利用rs与gis技术获取常州市1995、2000、2005年3个年份的土地利用空间分布,选取7个景观指数对其进行景观格局分析,并结合生态足迹模型计算相应年份的生态承载力,运用spss统计分析软件计算景观指数同生态承载力的皮尔逊相关系数,根据生态承载力动态变化和空间变异状况,结合生态盈亏情况和人均生态协调系数,对常州市可持续发展状况进行评价。结果表明:常州市土地利用类型变化在此10年间趋势比较稳定,建筑用地增加9.69%,其他用地减少10.12%,林地增加8.54%,农田减少6.47%;3个年份的人均生态承载力不断下降,分别为0.2392、0.2347、0.2263hm2/人;整体上,武进区和新北区的生态承载力较高,戚墅堰区最低;生态承载力与最大斑块指数、聚集度指数呈现显著正相关关系,与斑块密度间呈现显著负相关关系;3个年份的人均生态赤字分别为-0.8221、-1.0916、-1.4887,人均生态协调度分别为1.1954、1.1589、1.1222。
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