High-spatiotemporal-resolution mapping of global urban change from 1985 to 2015

Liu, Xiaoping1,2; Huang, Yinghuai1; Xu, Xiaocong1; Li, Xuecao3; Li, Xia4; Ciais, Philippe5; Lin, Peirong6; Gong, Kai6; Ziegler, Alan D.7; Chen, Anping8,9; Gong, Peng10; Chen, Jun11; Hu, Guohua4; Chen, Yimin1; Wang, Shaojian1; Wu, Qiusheng12; Huang, Kangning13; Estes, Lyndon14; Zeng, Zhenzhong6,15

2020-05-04

10.1038/s41893-020-0521-x

Nature Sustainability   影响因子和分区

2398-9629

High-resolution global maps of annual urban land coverage provide fundamental information of global environmental change and contribute to applications related to climate mitigation and urban planning for sustainable development. Here we map global annual urban dynamics from 1985 to 2015 at a 30 m resolution using numerous surface reflectance data from Landsat satellites. We find that global urban extent has expanded by 9,687 km(2) per year. This rate is four times greater than previous reputable estimates from worldwide individual cities, suggesting an unprecedented rate of global urbanization. The rate of urban expansion is notably faster than that of population growth, indicating that the urban land area already exceeds what is needed to sustain population growth. Looking ahead, using these maps in conjunction with integrated assessment models can facilitate greater understanding of the complex environmental impacts of urbanization and help urban planners avoid natural hazards; for example, by limiting new development in flood risk zones.

SCI ; EI ; SSCI

英语

ESI高被引

通讯

National Key R&D Program of China[2017YFA0604404][2019YFA0607203] ; Southern University of Science and Technology[G02296001]

Science & Technology - Other Topics ; Environmental Sciences & Ecology

Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies

WOS:000530241600002

NATURE PUBLISHING GROUP

20202108688910

Climate change ; Floods ; Risk assessment ; Planning ; Population statistics ; Satellites ; Sustainable development ; Urban growth

Urban Planning and Development:403.1 ; Atmospheric Properties:443.1 ; Environmental Impact and Protection:454.2 ; Satellites:655.2 ; Management:912.2 ; Accidents and Accident Prevention:914.1

Web of Science

1.Sun Yat Sen Univ, Sch Geog & Planning, Guangdong Key Lab Urbanizat & Geosimulat, Guangzhou, Peoples R China
2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
3.Iowa State Univ, Dept Geol & Atmospher Sci, Ames, IA USA
4.East China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ, Shanghai, Peoples R China
5.UVSQ, CNRS, CEA, Lab Sci Climat & Environm,UMR 1572, Gif Sur Yvette, France
6.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA
7.Mae Jo Univ, Chiang Mai, Thailand
8.Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA
9.Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA
10.Tsinghua Univ, Dept Earth Syst Sci, Key Lab Earth Syst Modeling, Minist Educ, Beijing, Peoples R China
11.Natl Geomat Ctr China, Beijing, Peoples R China
12.Univ Tennessee, Dept Geog, Knoxville, TN 37996 USA
13.Yale Univ, Yale Sch Forestry & Environm Studies, New Haven, CT USA
14.Clark Univ, Grad Sch Geog, Worcester, MA 01610 USA
15.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China

Liu, Xiaoping,Huang, Yinghuai,Xu, Xiaocong,et al. High-spatiotemporal-resolution mapping of global urban change from 1985 to 2015[J]. Nature Sustainability,2020,3(7):564-+.

Liu, Xiaoping.,Huang, Yinghuai.,Xu, Xiaocong.,Li, Xuecao.,Li, Xia.,...&Zeng, Zhenzhong.(2020).High-spatiotemporal-resolution mapping of global urban change from 1985 to 2015.Nature Sustainability,3(7),564-+.

Liu, Xiaoping,et al."High-spatiotemporal-resolution mapping of global urban change from 1985 to 2015".Nature Sustainability 3.7(2020):564-+.