| 摘要: |
| 随着城市化不断推进，北京市中心城社会经济发展和环境破坏严重威胁着绿色空间发展，理清绿色空间的演变机制为绿地系统规划方案制定提供重要的理论依据。研究以北京市中心城为对象，选择1992年、2000年、2008年和2016年4个重要节点，对其遥感影像进行解译，探究北京中心城绿色空间的时空变化并分析其转变影响因素。研究表明，研究期北京市中心城耕地、林地和湿地及水域面积减少，草地面积增加，总绿色空间大面积减少；中心城用地间的转换主要集中在耕地向建设用地、林地的转换，林地和草地向建设用地的转换上；社会经济发展对北京市中心城绿色空间面积演变影响显著，自然因素对绿色空间演变起到一定限制作用，政策因素对于结构性大型绿色空间的建设具有积极的推动作用。 |
| 关键词: 风景园林 北京市中心城 绿色空间 演变 时空 |
| DOI： |
| 分类号:TU986 |
| 基金项目:国家自然科学基金 “基于森林城市构建的北京市生态绿地格局演变机制及预测预警研究”（编号 31670704）；北京市共建项目；国家自然科学基金青年项目 “基于可步行性的城市绿色空间修补研究—以北京市海淀区为例”（编号51708030） |
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| The Spatio-temporal Evolution of Green Spaces in Central Beijing Based on Multi-source Data (1992—2016) |
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LI Fangzheng, XIE Shuang, LI Xiong
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Beijing Forestry University
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| Abstract: |
| Rapid urbanization, along with social and economic development and environment disruption, has seriously threatened the green space of central Beijing. Figuring out its evolution mechanism could provide an important theoretical basis for decision-making. Four time node (1992, 2000, 2008 and 2016) remote sensing images from 1992 to 2016 in central Beijing are applied to characterize the spatial-temporal change of green space and analyze its influence factors. The research indicates that the area of farmland, woodland, wetland and water area have decreased during the research period, while the grassland has increased, leading to drastic green space loss during the 24 years. The conversion of land use is mainly focused on the transition from farmland to construction land and woodland as well as from woodland and grassland to construction land. The results show the social, economic development has a significant impact on the evolution of green space area. Natural factors have restrictive effect on the evolution of the changes of green space area. And planning and government decision-making mechanism have a positive role in the construction of structural green space. |
| Key words: landscape architecture central Beijing greenspace evolution temporal-spatial |
| 引用本文: | 李方正,解爽,李雄.基于多源数据分析的北京市中心城绿色空间时空演变研究（1992—2016）[J].风景园林，2018，25（8）：46-51. |
| LI Fangzheng,XIE Shuang,LI Xiong.The Spatio-temporal Evolution of Green Spaces in Central Beijing Based on Multi-source Data (1992—2016)[J].Landscape Architecture Journal, 2018, 25(8):46-51. |
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