| 基于景观格局的广州市边缘区生态压力研究——以番禺区为例 |
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| 引用本文： | 张慧霞,娄全胜,李艳.基于景观格局的广州市边缘区生态压力研究——以番禺区为例[J].热带地理,2010,30(3). |
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| 作者姓名： | 张慧霞 娄全胜 李艳 |
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| 作者单位： | 1. 广东商学院,资源与环境学院,广州,510320
2. 国家海洋局,南海海洋勘察与环境研究院,广州,510310 |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金，广东省科技计划项目 |
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| 摘 要： | 基于RS、GIS技术和统计分析方法,选取破碎化指数、斑块结合度指数、分形维数3个景观指数和土地利用脆弱性指数构建生态压力指数,以番禺为例从景观尺度研究城市边缘区在城市化梯度上的生态压力空间分异。结果表明:不同用地类型的景观指数在3个梯度区内依人为干扰的强烈程度出现明显的空间分异,生态压力呈现自北向南依次降低的空间分布格局。景观生态压力强弱的分布与区域内土地利用方式和强度具有较高的相关关系,人为干扰是影响景观生态压力扩散的重要原因。
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| 关 键 词： | 景观格局 边缘区 生态压力 广州市番禺区 |
Study on Ecological Stress in the Urban Fringe of Guangzhou City Based on Landscape Pattern:A Case Study of Panyu District |
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| ZHANG Huixia,LOU Quansheng,LI Yan.Study on Ecological Stress in the Urban Fringe of Guangzhou City Based on Landscape Pattern:A Case Study of Panyu District[J].Tropical Geography,2010,30(3). |
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| Authors: | ZHANG Huixia LOU Quansheng LI Yan |
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| Institution: | ZHANG Huixia1,LOU Quansheng2,LI Yan1 (1.School of Resource , Environment,Guangdong University of Business Studies,Guangzhou 510320,China,2.South China Sea Marine Engineering , Environment Institute,SOA,Guangzhou 510310,China) |
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| Abstract: | With RS, GIS and statistical method, an ecological stress index model is established by selecting landscape fragmentation index, patch cohesion index, fractal dimension index and land use sensitivity index. Spatial disparity of the ecological stress with urbanization gradient at the urban fringe of Panyu district in Guangzhou City is studied. The results show that: the average patch area increases from suburb to exurb. The ratio of artificial landscape decreases and that of natural landscape increases in th... |
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| Keywords: | landscape pattern urban fringe ecological stress Panyu District |
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