| 摘要: |
| 城市生态环境是居民生存和发展的物质基础, 生态敏感性对城市生态环境保护和可持续发展具有
主要意义。 文章以广州市为例, 进行生态敏感性分析, 将研究区分为不敏感、 低敏感、 中度敏感和高度敏感
4 个敏感区域。 基于 GIS 和 RS 技术, 采用层次分析法 (AHP) 建立评价因子体系, 选取高程、 坡度等 9 个
因子, 确定各指标权重并进行 GIS 加权叠加, 综合分析。 结果表明, 广州市综合生态敏感性较高, 以中度敏
感和低敏感为主, 两者占比为 63. 37%, 广泛分布在广州市全域, 多为山区及水系周边地区; 高敏感占比为
21. 12%, 分布在东北部山区及水系; 不敏感占比为 15. 51%, 主要分布在中部和西南部城镇中心。 |
| 关键词: 生态敏感性 GIS RS 技术 生态保护 广州市 |
| DOI： |
| 分类号: |
| 基金项目: |
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| Ecological Sensitivity Analysis of Guangzhou City Based on GIS |
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zhuzhixi1, xiaolin1, libinchao2, liwenjuan1
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1.Zhongkai University of Agriculture and Engineering;2.Guangdong Geological Engineering Company
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| Abstract: |
| The urban ecological environment is the material basis for the survival and development of resients, and ecological sensitivity is of great significance to the protection and sustainable development of the urban ecological environment. Taking Guangzhou as an example, this paper analyzes ecological sensitivity and divides the study into four sensitive areas: insensitive, low sensitive, medium sensitive, and high sensitive.
Based on GIS and RS technology, the evaluation factor system was established by the Analytic Hierarchy
Process (AHP), and 9 factors such as elevation and slope were selected to determine the weight of each index
and perform GIS-weighted superposition for comprehensive analysis. The results showed that the comprehensive
ecological sensitivity of Guangzhou was high, mainly moderate sensitivity and low sensitivity, accounting for
63. 37%, which were widely distributed in the whole area of Guangzhou, mostly in mountainous areas and surrounding water systems. The proportion of high sensitivity was 21. 12%, which is distributed in the mountainous
area and river system in northeast China. The proportion of insensitivity was 15. 51%, mainly distributed in the
central and southwest urban centers. |
| Key words: ecological sensitivity GIS RS ecological protection Guangzhou city |
