DOI: 10.1016/j.scib.2020.03.003
论文题名: High-resolution urban land-cover mapping and landscape analysis of the 42 major cities in China using ZY-3 satellite images
作者: Huang X. ; Wang Y. ; Li J. ; Chang X. ; Cao Y. ; Xie J. ; Gong J.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期: 12 起始页码: 1039
结束页码: 1048
语种: 英语
中文关键词: 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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169927
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
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]. Science Bulletin,2020-01-01,65(12)