Quantifying spatiotemporal pattern of urban greenspace: new insights from high resolution data

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Quantifying spatiotemporal pattern of urban greenspace: new insights from high resolution data
	Qian, Yuguo; Zhou, Weiqi; Yu, Wenjuan; Pickett, Steward T. A.
刊名	LANDSCAPE ECOLOGY
	2015-08
卷号	30 期号:7 页码:1165-1173
关键词	Within-city dynamics Beijing Urban sustainability Ecosystem services Scale Urban landscape
英文摘要	Urban greenspace provides myriad ecosystem services. To fully understand the ecological services provided by urban greenspace, it is crucial to first accurately quantify the composition and configuration, and change of urban greenspace. (1) Quantify the dynamics of greenspace in highly urbanized areas. (2) Compare and evaluate the efficacy of medium and high resolution image data on quantifying urban greenspace dynamics. Using two very well-developed urban districts of Beijing, we compare and contrast the changes in urban greenspace from 2005 to 2009 based on two different datasets, the most commonly used Landsat TM data with 30 m resolution, and 2.5 m high spatial resolution imagery. We found urban greenspace in the two well-developed urban districts of Beijing to be very dynamic, in contrast to findings from previous research that greenspace in inner cities tends to remain largely unchanged. Such dynamics, however, could only be revealed by high spatial resolution imagery because medium resolution data, such as TM data greatly underestimated the percent cover of greenspace. The underestimate neglects smaller elements of greenspace as well as changes in configuration of larger patches, limiting the ability of TM data to detect such changes. Our results underscore the importance and necessity of using high spatial resolution data to adequately quantify the distribution of urban greenspace and its change. Results from this study have important implications for urban greenspace management and planning. In addition, the dynamics revealed support emerging conceptions of urban areas as hierarchical patch mosaics.
研究领域[WOS]	Ecology ; Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000357293800002
公开日期	2016-03-08
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32359]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Qian, Yuguo,Zhou, Weiqi,Yu, Wenjuan,et al. Quantifying spatiotemporal pattern of urban greenspace: new insights from high resolution data[J]. LANDSCAPE ECOLOGY,2015,30(7):1165-1173.
APA	Qian, Yuguo,Zhou, Weiqi,Yu, Wenjuan,&Pickett, Steward T. A..(2015).Quantifying spatiotemporal pattern of urban greenspace: new insights from high resolution data.LANDSCAPE ECOLOGY,30(7),1165-1173.
MLA	Qian, Yuguo,et al."Quantifying spatiotemporal pattern of urban greenspace: new insights from high resolution data".LANDSCAPE ECOLOGY 30.7(2015):1165-1173.