Patterns and Distributions of Urban Expansion in Global Watersheds

Huang, Qingxu1,2; Zhang, Han1; van Vliet, Jasper3; Ren, Qiang1,2; Wang, Raymond Yu4; Du, Shiqiang5; Liu, Zhifeng1,2; He, Chunyang1,2

2021-08-01

10.1029/2021EF002062

EARTHS FUTURE   影响因子和分区

2328-4277

Understanding urban expansion at the watershed scale is important because watersheds are important carriers of ecological and environmental impacts. However, current analyses are mainly restricted to administrative units only. Here, we used a long-term multitemporal data set of urban land to quantify the spatiotemporal trends in the extent and form of urban expansion from 1992 to 2016 in endorheic and exoreic watersheds, globally. Overall, urban expansion in 70% of watersheds (154/220) showed a decelerating trend. The average urban expansion speed of these watersheds in the last 6 years was approximately half of that in the last 24 years. Urban expansion speed in endorheic watersheds lagged behind the counterparts in exoreic watersheds, with the former approximately 1/4 of the latter. More importantly, the pattern of urban expansion in endorheic watersheds was following the low-density and sprawling trend in exoreic watersheds, which could exert far-reaching impacts on the sustainability of endorheic watersheds located in arid lands. These findings suggest the need to look beyond administrative city boundaries for land use planning and policies in the context of watershed management.

urbanization basin urban sustainability urbanizing watershed watershed management

SCI ; SSCI

英语

其他

National Key Research and Development Program of China[2019YFA0607203] ; National Natural Science Foundation of China[41971225]

Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences

Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences

WOS:000688531200008

AMER GEOPHYSICAL UNION

Web of Science

1.Beijing Normal Univ, Ctr Human Environm Syst Sustainabil, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China
2.Beijing Normal Univ, Fac Geog Sci, Sch Nat Resources, Beijing, Peoples R China
3.Vrije Univ Amsterdam, Inst Environm Studies, Amsterdam, Netherlands
4.Southern Univ Sci & Technol, Ctr Social Sci, Shenzhen, Peoples R China
5.Shanghai Normal Univ, Sch Environm & Geog Sci, Shanghai, Peoples R China

Huang, Qingxu,Zhang, Han,van Vliet, Jasper,et al. Patterns and Distributions of Urban Expansion in Global Watersheds[J]. EARTHS FUTURE,2021,9(8).

Huang, Qingxu.,Zhang, Han.,van Vliet, Jasper.,Ren, Qiang.,Wang, Raymond Yu.,...&He, Chunyang.(2021).Patterns and Distributions of Urban Expansion in Global Watersheds.EARTHS FUTURE,9(8).

Huang, Qingxu,et al."Patterns and Distributions of Urban Expansion in Global Watersheds".EARTHS FUTURE 9.8(2021).