Global urban expansion offsets climate-driven increases in terrestrial net primary productivity

Liu, Xiaoping1; Pei, Fengsong2; Wen, Youyue1; Li, Xia1,3; Wang, Shaojian1,4; Wu, Changjiang1; Cai, Yiling1; Wu, Jianguo5,6; Chen, Jun7; Feng, Kuishuang8; Liu, Junguo9; Hubacek, Klaus10,11,12; Davis, Steven J.13; Yuan, Wenping1; Yu, Le14; Liu, Zhu14

2019-12-05

10.1038/s41467-019-13462-1

Nature Communications   影响因子和分区

2041-1723

The global urbanization rate is accelerating; however, data limitations have far prevented robust estimations of either global urban expansion or its effects on terrestrial net primary productivity (NPP). Here, using a high resolution dataset of global land use/cover (Globe-Land30), we show that global urban areas expanded by an average of 5694 km(2) per year between 2000 and 2010. The rapid urban expansion in the past decade has in turn reduced global terrestrial NPP, with a net loss of 22.4 Tg Carbon per year (Tg C year(-1)). Although small compared to total terrestrial NPP and fossil fuel carbon emissions worldwide, the urbanization-induced decrease in NPP offset 30% of the climate-driven increase (73.6 Tg C year(-1)) over the same period. Our findings highlight the urgent need for global strategies to address urban expansion, enhance natural carbon sinks, and increase agricultural productivity.

SCI ; SSCI

英语

NI论文 ; ESI高被引

其他

National Natural Science Foundation of China[41671398] ; National Natural Science Foundation of China[71874097] ; National Natural Science Foundation of China[41921005] ; National Natural Science Foundation of China[41842057]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000502053800001

NATURE PUBLISHING GROUP

Web of Science

1.Sun Yat Sen Univ, Sch Geog & Planning, 135 West Xingang RD, Guangzhou 510275, Guangdong, Peoples R China
2.Jiangsu Normal Univ, Sch Geog Geomat & Planning, 101 Shanghai RD, Xuzhou 221116, Jiangsu, Peoples R China
3.East China Normal Univ, Sch Geog Sci, 500 Dongchuan Rd, Shanghai 200241, Peoples R China
4.MIT, Dept Urban Studies & Planning, Cambridge, MA 02138 USA
5.Arizona State Univ, Sch Life Sci, Global Inst Sustainabil, 427 East Tyler Mall, Tempe, AZ 85287 USA
6.Arizona State Univ, Sch Sustainabil, Global Inst Sustainabil, 427 East Tyler Mall, Tempe, AZ 85287 USA
7.Natl Geomat Ctr China, 28 Lianhuachi West Rd, Beijing 100830, Peoples R China
8.Univ Maryland, Dept Geog Sci, 2181 Samuel J LeFrak Hall,7251 Preinkert Dr, College Pk, MD 20742 USA
9.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
10.Univ Groningen, Ctr Energy & Environm Sci IVEM, ESRIG, NL-9747 AG Groningen, Netherlands
11.Masaryk Univ, Dept Environm Studies, Jostova 10, Brno 60200, Czech Republic
12.Int Inst Appl Syst Anal, Schlosspl 1, A-2361 Laxenburg, Austria
13.Univ Calif Irvine, Dept Earth Syst Sci, 3232 Croul Hall, Irvine, CA 92697 USA
14.Tsinghua Univ, Dept Earth Syst Sci, Beijing, Peoples R China

Liu, Xiaoping,Pei, Fengsong,Wen, Youyue,et al. Global urban expansion offsets climate-driven increases in terrestrial net primary productivity[J]. Nature Communications,2019,10.

Liu, Xiaoping.,Pei, Fengsong.,Wen, Youyue.,Li, Xia.,Wang, Shaojian.,...&Liu, Zhu.(2019).Global urban expansion offsets climate-driven increases in terrestrial net primary productivity.Nature Communications,10.

Liu, Xiaoping,et al."Global urban expansion offsets climate-driven increases in terrestrial net primary productivity".Nature Communications 10(2019).