气候变化领域集成服务门户(CCPortal): High-resolution urban land-cover mapping and landscape analysis of the 42 major cities in China using ZY-3 satellite images

CCPortal

DOI	10.1016/j.scib.2020.03.003
	High-resolution urban land-cover mapping and landscape analysis of the 42 major cities in China using ZY-3 satellite images
	Huang X.; Wang Y.; Li J.; Chang X.; Cao Y.; Xie J.; Gong J.
发表日期	2020
ISSN	20959273
起始页码	1039
结束页码	1048
卷号	65 期号:12
英文摘要	Detailed and precise urban land-cover maps are crucial for urban-related studies. However, there are limited ways of mapping high-resolution urban land cover over large areas. In this paper, we propose an operational framework to map urban land cover on the basis of Ziyuan-3 satellite images. Based on this framework, we produced the first high-resolution (2 m) urban land-cover map (Hi-ULCM) covering the 42 major cities of China. The overall accuracy of the Hi-ULCM dataset is 88.55%, of which 14 cities have an overall accuracy of over 90%. Most of the producer's accuracies and user's accuracies of the land-cover classes exceed 85%. We further conducted a landscape pattern analysis in the 42 cities based on Hi-ULCM. In terms of the comparison between the 42 cities in China, we found that the difference in the land-cover composition of urban areas is related to the climatic characteristics and urbanization levels, e.g., cities with warm climates generally have higher proportions of green spaces. It is also interesting to find that cities with higher urbanization levels are more habitable, in general. From the landscape viewpoint, the geometric complexity of the landscape increases with the urbanization level. Compared with the existing medium-resolution land-cover/use datasets (at a 30-m resolution), Hi-ULCM represents a significant advance in accurately depicting the detailed land-cover footprint within the urban areas of China, and will be of great use for studies of urban ecosystems. © 2020 Science China Press
关键词	China High resolution Land-cover mapping Urban Ziyuan-3 satellite imagery
英文关键词	Satellite imagery; China; Geometric complexity; High resolution; Land cover mapping; Landscape pattern analysis; Urban; Urban land cover mappings; Urban-related studies; Mapping
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207071
作者单位	School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, 430079, China; State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, 430079, China; Land Satellite Remote Sensing Application Center, Ministry of Natural Resources of the People's Republic of China, Beijing, 100048, China
推荐引用方式 GB/T 7714	Huang X.,Wang Y.,Li J.,et al. High-resolution urban land-cover mapping and landscape analysis of the 42 major cities in China using ZY-3 satellite images[J],2020,65(12).
APA	Huang X..,Wang Y..,Li J..,Chang X..,Cao Y..,...&Gong J..(2020).High-resolution urban land-cover mapping and landscape analysis of the 42 major cities in China using ZY-3 satellite images.Science Bulletin,65(12).
MLA	Huang X.,et al."High-resolution urban land-cover mapping and landscape analysis of the 42 major cities in China using ZY-3 satellite images".Science Bulletin 65.12(2020).