environment response spatiotemporal differences driving forc

  本文关键词：北京城市空间扩展的生态环境响应及驱动力，由笔耕文化传播整理发布。

北京城市空间扩展的生态环境响应及驱动力

Eco-environment Response to Urban Spatial Expansion and Its Driving Forces in Beijing

[1] [2] [3]

LIN Xueqin, WANG Dai, LIU Xu （1. College of Resources Environment and Tourism, Capital Normal University, Beijing 100048, China; 2. Institute of Geographic Sciences and Natu

[1]首都师范大学资源环境与旅游学院,北京100048; [2]中国科学院地理科学与资源研究所,北京100101

文章摘要：城市土地利用变化及其生态环境响应是全球环境变化研究的重要组成部分，是可持续发展研究的核心问题。大都市作为人口和产业密集地区，城市土地利用变化剧烈，由此带来的生态环境问题更为显著。在新型城镇化建设背景下，研究大都市城市空间扩展及其生态环境响应，对提高大都市土地利用效能，转变经济增长方式和实现可持续发展具有重要指导意义。文章基于北京市遥感影像数据及相关社会经济数据，构建北京市空间扩展的生态环境响应评价指标体系和模型，对1995─2010年北京市空间扩展的生态环境响应进行了综合评价并分析其驱动力。研究认为：1995─2010年北京市各区县空间扩展的社会经济压力指数不断增大，首都功能核心区和城市功能拓展区各区县社会经济压力指数上升幅度最大，城市发展新区和生态涵养发展区各区县上升趋势较为平缓；除东城区和西城区外，各区县土地利用状态指数有所下降，降低幅度较大的区县有通州、顺义、大兴、平谷和昌平，较小的区县有朝阳、海淀、丰台、石景山和密云；除通州和大兴外，各区县空间扩展的生态环境响应指数均呈上升趋势，净变化量较大的区县主要位于首都功能核心区，生态涵养区和城市发展新区各区县净变化量较小；除通州、顺义、延庆和昌平外，，各区县城市空间扩展的生态环境响应综合指数均有所提高，其中东城、西城、海淀和朝阳净变化量较大，顺义、平谷和怀柔净变化量较小，空间格局表现出“中心低、外围高、东南低、西北高”的特征；人口增长、城市化、经济发展、建设用地高速扩展、生态用地减少等对北京城市空间扩展的生态环境响应具有重要影响。

Abstr：That of spatial expansion, land use change and their ecological effects is the core issue should be investigated in urban sustainable development, and moreover this is also a critical topic in global environment change. As densely populated and industrial areas, metropolis experiences dramatic land use changes and therefore significant ecological environment problems as well. Toward to China’s new urbanization, the investigation on spatial expansion and its eco-effects could significantly contribute to improve the land-use efficiency, transform the ways to achieve economic growth and finally meet sustainable development. This paper builds a comprehensive index system to evaluate eco-environment response to urban expansion, and then uses it to analyze the spatial differentiation of eco-environment response and driving forces in 16 districts in Beijing from 1995 to 2010, based on the remote sensing data and related economic-social data of Beijing. We reach five main conclusions： Firstly, the social economy pressure index to urban expansion of all 16 districts in Beijing rise during this period. The index of core urban area and urban function expansion area have largest growth, while that of new urban area and ecological conservation area have more gentle upward trend. Secondly, the land-use state index of districts except Dongcheng and Xicheng declined. The index of Tongzhou, Shunyi, Daxing, Pinggu and Changping have fast reduction, while Chaoyang, Haidian, Fengtai, Shijingshan and Miyun have slower reduction. Then the ecological environment index of districts except Tongzhou and Daxing showed an upward trend, with core urban area having largest growth and the ecological conservation areas and new urban area experienc

文章关键词：

Keyword：:urban expansion eco-environment response spatiotemporal differences driving forces Beijing

课题项目：北京市自然科学基金项目（8122015）

  本文关键词：北京城市空间扩展的生态环境响应及驱动力，由笔耕文化传播整理发布。