上海市城乡梯度景观格局分析

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摘要9利用!在+结合景观格局指数和梯度分析方法3研究了上海市景观结构及其在城市$$$年的土地利用数据3,-的支持下3化梯度上的空间特征D结果表明3上海市的景观结构中3农田为优势景观3占整个景观比例的7而反映城市化的工业C$u左右3居住和基础设施景观则占!表明上海的城市化程度已经很高<郊区居住用地比例过大6城乡交错带居住区与工!u3;!v7#u83业区的高度混合显示上海市的景观结构需要优化3以提高土地利用率D样带上类型水平的景观格局指数分析表明各种景观类型明显反映了城市化的梯度和前沿<而景观水平的格局分析则表明城市化导致景观的破碎化程度增大3表现出独特的空间特征3

景观异质性增高<景观格局指数曲线在城市化梯度上呈双峰型3是上海中心城区和浦东新区城市化区域的具体表现D研究结果表明景观格局指数和梯度分析相结合3是检测城市化和城市形态的有力工具D关键词9梯度分析<景观格局<景观格局指数<城市化<上海

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基金项目9上海市科委重点资助项目6上海市生态学重点学科资助项目<上海市=十五>生态学重点学科建设资助项目<上海市=$!:#;!$7"8<!;;工程>生态学重点学科建设资助项目

收稿日期9修订日期9!$$"?$7?$@<!$$"?$@?$A

作者简介9李俊祥6男3安徽巢湖人3博士3讲师3主要从事景观生态C城市生态和环境遥感等研究D(;#7#B83?9JK222EFG1HI1G4L4MNO4KOMN62$!:#;!$7"8<-PQRSTUVWQSWVXY9Z4[\]0^]FE_]0E-‘FN^‘FG-MG4NM4a’4M‘N010^[&0EEGbb44.0‘FN^‘FG\]G0]Gb[%MFK4EGMcGLMG51GN4FNK?!;;\>?’‘4-bFb4dLb4Nb‘_Ge4[4F]=]0H4MbLO550]b4Kf4[FMFK4EGMKGLMG51GN45]0^]FE0_(&.g9!$$"?$7?$@<9!$$"?$@?$AhXiXWjXTTUVXkiiXlVXTTUVX

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