文献类型：期刊文献

中文题名：北京中心城区绿地景观空间可达性分析

英文题名：Analysis on Landscape Pattern and Accessibility of Beijing Urban Park Green Space

作者：陈静[1,2];张景秋[1];张树文[2,3]

第一作者：陈静

机构：[1]北京联合大学应用文理学院;[2]吉林大学地球科学学院;[3]中国科学院东北地理与农业生态研究所

第一机构：北京联合大学应用文理学院

年份：2017

卷号：31

期号：3

起止页码：41-47

中文期刊名：北京联合大学学报

外文期刊名：Journal of Beijing Union University

基金：国家自然科学基金项目(41271185)

语种：中文

中文关键词：城市公园绿地;景观格局;可达性;两步移动搜寻法

外文关键词：Urban green park space; Landscape pattern; Accessibility; 2-step floating catchment area method

摘要：城市公园绿地是脆弱的城市生态系统中最接近自然的元素,其景观结构及可达性程度可以体现出为居民提供绿色服务的能力大小。运用景观生态学的原理结合两步移动搜寻法及可达性理论,对北京中心城区公园绿地景观斑块特征、空间结构度量进行了研究和分析,并以行政单元为单位对北京城区绿地景观可达性进行研究分析。结果表明,1)公园绿地斑块个数以小型斑块为主,斑块面积大于100 000 m^2的大型斑块虽然个数较少,却是构成城市公园绿地景观的主体。空间分布上,城区北部大型斑块的数量和面积构成具有绝对优势;2)城区公园绿地景观总体表现为类型较丰富、信息量高、面积和分布不均匀的特征。景观形状相对规则,体现出人类活动极强的干预性;3)北京城市公园绿地景观可达性好的区域相对集中,由西二环周边不断扩张到四环内,"空心化"区域逐步缩小至东北三环周边3个街道;4)可达性水平空间上呈现出N字圈层形态;5)大型公园绿地斑块对周边绿地可达性影响较大。
Urban park green space is the basis of urban ecological civilization construction, and is most close to the natural elements in the fragile urban ecosystem. The landscape spatial structure and accessibility can reflect its ability to provide green services and play an important role in improving residents＇ quality of life. Based on the principle of landscape ecology and accessibility theory, we carried out the research and analysis on patch characteristics, spatial structure and accessibility of the green park space landscape within 6 municipal districts of Beijing city. Results showed that 1 ） Small patches were quantitatively dominant, and large patches more than 100 000 m2 were the principal parts of urban green park space landscape, accounting for 89.84% of the total area. The size and quantity of large patches assumed absolute superiority in the north part from Chang＇ an Avenue. 2）Rich types, high volume, large difference between different types,uneven distribution of green space types,less fragmentation as well as low diversity, existed in the landscape structure of urban green park space in Beijing. Landscape shape was relatively normal, which reflects the strong human activity intervention. There had visible differences between municipal districts in diversity results, and the overall diversity index was not high, less abundance. 3） Villages with high accessibility concentrated surrounding the 2nd ring road west and expanding in the 4th ring road, and the ＂hollowing＂ area gradually narrowed to three streets nearby the northeast of the 3rd ring. 4） The accessibility of areas was presented as word ＂ N＂ from spatial view. On the whole, the northern region is higher than the south, the western region is higher than the south, and central urban area is higher than suburb. 5） Large patches had greater impact on the surrounding green space accessibility.