| 基于地理国情数据的城市扩张和生态格局分析——以武汉市为例 |
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| 引用本文： | 厉芳婷,张过,贾继鹏.基于地理国情数据的城市扩张和生态格局分析——以武汉市为例[J].测绘通报,2020,0(11):93-98. |
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| 作者姓名： | 厉芳婷 张过 贾继鹏 |
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| 作者单位： | 1. 武汉大学测绘遥感信息工程国家重点实验室, 湖北 武汉 430079;2. 湖北省测绘工程院, 湖北 武汉 430074 |
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| 基金项目： | 地理国情监测国家测绘地理信息局重点实验室开放基金（2018NGCM10） |
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| 摘 要： | 城市扩张是城镇化的主要特征，研究城市扩张规律对城市空间规划、高质量发展提供决策依据。本文以武汉市为研究区，以2015—2018年地理国情监测成果为主要数据源，通过数据整理与提取、计算城市扩张特征指数、提取城市格局变化、计算生态景观指数等处理，对研究区城市扩张和生态格局变化特征进行分析。研究结果表明：2015—2018年间，武汉市从快速扩张阶段逐渐减缓，紧凑度逐渐下降；中心城市扩张主要以种植土地破坏为代价；远城区快速扩张主要以林草面积减少为代价；在生态指数上，各生态景观类型破碎度均有下降，但水域面积保持良好。
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| 关 键 词： | 城市扩张 地理国情监测 生态景观 地理国情数据 武汉 |
| 收稿时间： | 2020-01-03 |
Analysis on urban expansion and ecological pattern based on geographical condition data: taking Wuhan as an example |
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| LI Fangting,ZHANG Guo,JIA Jipeng.Analysis on urban expansion and ecological pattern based on geographical condition data: taking Wuhan as an example[J].Bulletin of Surveying and Mapping,2020,0(11):93-98. |
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| Authors: | LI Fangting ZHANG Guo JIA Jipeng |
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| Institution: | 1. State Key Laboratory of Information Engineering in Surverying, Mapping and Sensing, Wuhan University, Wuhan 430079, China;2. Hubei Institute of Surveying and Mapping, Wuhan 430074, China |
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| Abstract: | Urban expansion is the main characteristic of urbanization. The study of urban expansion law provides decision-making basis for urban spatial planning and high-quality development. In this paper, we select Wuhan as the study area, and take the results of geographical national conditions survey from 2015 to 2018 as the main data source, the characteristics of urban expansion and ecological pattern change in the study area are analyzed by data collation and extraction, urban expansion index calculation, urban pattern change extraction and ecological landscape index calculation. The results show that Wuhan's rapid expansion from 2015 to 2018 slowed and its compactness declined. The expansion of central cities is mainly at the expense of the destruction of cultivated land. The forest and grass area in far-away district is expanding rapidly at the expense of decreasing. In the ecological index, the fragmentation of each ecological landscape type decreased, but the water area maintained well. |
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| Keywords: | urban expansion geographical condition survey ecological pattern geographical condition data Wuhan |
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