干旱区生态环境知识资源中心(Arid): Determining the impacts of climate change and urban expansion on terrestrial net primary production in China

Arid

DOI	10.1016/j.jenvman.2019.03.071
	Determining the impacts of climate change and urban expansion on terrestrial net primary production in China
	Wen, Youyue 1,2; Liu, Xiaoping 1; Bai, Yang 3; Sun, Yu 4; Yang, Jian 2; Lin, Kui 2; Pei, Fengsong 5; Yan, Yuchao 1
通讯作者	Liu, Xiaoping
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2019
卷号	240 页码:75-83
英文摘要	Climate change and urbanization strongly affect the variations of terrestrial net primary production (NPP), but the relative contributions of these two factors to NPP changes have not been determined yet (especially on a macroscale). In this study, spatial-temporal variations of NPP in China from 2000 to 2010 were estimated using the Carnegie - Ames - Stanford Approach model, and the effects induced by urbanization and climate change were quantified. The obtained results showed that during the study period, the NPP in China exhibited an annual increase of 0.03 Pg C accompanied by large spatial heterogeneities. During the whole study period, the urban area in China increased by 16.44 x 10(3) km(2), and the corresponding NPP losses amounted to 11.60 x 10(-3) Pg C. Urban expansion significantly offset the climate change-induced NPP increases and worsened NPP decreases (the offsetting ratio calculated for China was 5.42%, and its exact magnitudes varied by province). The largest NPP variations were observed over the regions with rapid urban expansion, whose contribution ratio was 32.20% for China and exceeded 30% for most provinces. Climate change contributed considerably to the NPP variations in both the newly urbanized (30.45%) and purely vegetated (46.92%) areas, but its contribution ratios were slightly lower than those of residual factors. Moreover, climate change strongly affected the NPP levels over the arid and semi-arid regions as well as over the Tibet Plateau; however, residual factors dominated the NPP variations over the central and southeast China. Our study highlights a significant role of urbanization in driving terrestrial NPP variations on a macroscale and provides a new perspective on disentangling the impacts of external factors on NPP values.
英文关键词	Climate change Urban expansion Terrestrial net primary production Relative contributions China CASA model
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000467510800008
WOS关键词	USE EFFICIENCY ; ECOSYSTEM SERVICES ; TIBET PLATEAU ; MODEL-DRIVEN ; RIVER-BASIN ; LAND-USE ; URBANIZATION ; SIMULATION ; DYNAMICS ; IMPROVEMENTS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216965
作者单位	1.Sun Yat Sen Univ, Sch Geog & Planning, 135 West Xingang Rd, Guangzhou 510275, Guangdong, Peoples R China; 2.Minist Ecol & Environm, South China Inst Environm Sci, 18 Ruihe Rd, Guangzhou 510535, Guangdong, Peoples R China; 3.Chinese Res Inst Environm Sci, 8 Dayangfang, Beijing 100012, Peoples R China; 4.Minist Ecol & Environm, Informat Ctr, 1 Yuhui South Rd, Beijing 100029, Peoples R China; 5.Jiangsu Normal Univ, Sch Geog Geomat & Planning, 101 Shanghai Rd, Xuzhou 221116, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wen, Youyue,Liu, Xiaoping,Bai, Yang,et al. Determining the impacts of climate change and urban expansion on terrestrial net primary production in China[J],2019,240:75-83.
APA	Wen, Youyue.,Liu, Xiaoping.,Bai, Yang.,Sun, Yu.,Yang, Jian.,...&Yan, Yuchao.(2019).Determining the impacts of climate change and urban expansion on terrestrial net primary production in China.JOURNAL OF ENVIRONMENTAL MANAGEMENT,240,75-83.
MLA	Wen, Youyue,et al."Determining the impacts of climate change and urban expansion on terrestrial net primary production in China".JOURNAL OF ENVIRONMENTAL MANAGEMENT 240(2019):75-83.