中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Hierarchical Urban Land Mappings and Their Distribution with Physical Medium Environments Using Time Series of Land Resource Images in Beijing, China (1981-2021)

文献类型:期刊论文

作者Pan, Tao1,2; Kuang, Wenhui3; Pan, Ruoyi1; Niu, Zhenguo4; Dou, Yinyin3
刊名REMOTE SENSING
出版日期2022-02-01
卷号14期号:3页码:27
关键词hierarchical urban land mappings living environment physical medium conditions the capital of China
DOI10.3390/rs14030580
通讯作者Kuang, Wenhui(kuangwh@igsnrr.ac.cn)
英文摘要Rapid urban expansion and structural changes are taking place in China's capital city, Beijing, but without an update of urban land features in a timely manner our understanding of the new urban heterogeneity is restricted, as land-background data is indispensable for bio-geophysical and bio-geochemical processes. In this plain region, the investigations of multi-scale urban land mappings and physical medium environmental elements such as slope, aspect, and water resource services are still lacking, although Beijing can provide an exemplary case for urban development and natural environments in plains considering the strategic function of China's capital city. To elucidate these issues, a remote-sensing methodology of hierarchical urban land mapping was established to obtain the urban land, covering structure and its sub-pixel component with an overall accuracy of over 90.60%. During 1981-2021, intense and sustained urban land expansion increased from 467.13 km(2) to 2581.05 km(2) in Beijing, along with a total growth rate of 452.53%. For intra-urban land structures, a sharp growth rate of over 650.00% (i.e., +1649.54 km(2)) occurred in terms of impervious surface area (ISA), but a greening city was still evidently observed, with a vegetation-coverage rate of 8.43% and 28.42% in old and newly expanded urban regions, respectively, with a more integrative urban ecological landscape (Shannon's Diversity Index (SHDI) = -0.164, Patch Density (PD) = -8.305). We also observed a lower rate of ISA (0.637 vs. 0.659) and a higher rate of vegetation cover (0.284 vs. 0.211) in new compared to old urban regions, displaying a higher quality of life during urban expansion. Furthermore, the dominant aspect of low, medium, and high density ISA was captured with the north-south orientation, considering the sunlight conditions and traditional house construction customs in North China, Over 92.00% of the ISA was distributed in flat environment regions with a slope of less than 15 degrees. When the water-resource service radius shifted from 0.5 km to 0.5-1 km and 1-2 km, high density vegetation displayed a dependence on water resources. Our results provide a new survey of the evolution of hierarchical urban land mapping during 1981-2021 and reveals the relationship with physical medium environments, providing an important reference for relevant research.
WOS关键词IMPERVIOUS SURFACE-AREA ; SPATIOTEMPORAL PATTERNS ; CARBON EMISSIONS ; GREEN SPACE ; URBANIZATION ; IMPACTS ; MODEL ; INDEX ; LANDSCAPE ; EXPANSION
资助项目Open Fund of State Key Laboratory of Remote Sensing Science[OFSLRSS201906]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
出版者MDPI
WOS记录号WOS:000754631100001
资助机构Open Fund of State Key Laboratory of Remote Sensing Science
源URL[http://ir.igsnrr.ac.cn/handle/311030/170916]  
专题中国科学院地理科学与资源研究所
通讯作者Kuang, Wenhui
作者单位1.Qufu Normal Univ, Sch Geog & Tourism, Rizhao 276826, Peoples R China
2.Qufu Normal Univ, Ctr Land Studies, Rizhao 276826, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714
Pan, Tao,Kuang, Wenhui,Pan, Ruoyi,et al. Hierarchical Urban Land Mappings and Their Distribution with Physical Medium Environments Using Time Series of Land Resource Images in Beijing, China (1981-2021)[J]. REMOTE SENSING,2022,14(3):27.
APA Pan, Tao,Kuang, Wenhui,Pan, Ruoyi,Niu, Zhenguo,&Dou, Yinyin.(2022).Hierarchical Urban Land Mappings and Their Distribution with Physical Medium Environments Using Time Series of Land Resource Images in Beijing, China (1981-2021).REMOTE SENSING,14(3),27.
MLA Pan, Tao,et al."Hierarchical Urban Land Mappings and Their Distribution with Physical Medium Environments Using Time Series of Land Resource Images in Beijing, China (1981-2021)".REMOTE SENSING 14.3(2022):27.

入库方式: OAI收割

来源:地理科学与资源研究所

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