标题: Spatial and temporal divergence and driving mechanisms of carbon sinks in terrestrial ecosystems in the middle reaches of the Yangtze River urban agglomerations during 2008-2020

作者: Pang, BW (Pang, Bowen); Liu, YL (Liu, Yaolin); An, R (An, Rui); Xie, YF (Xie, Yifan); Tong, ZM (Tong, Zhaomin); Liu, YF (Liu, Yanfang)

来源出版物: ECOLOGICAL INDICATORS  卷: 165  文献号: 112205  DOI: 10.1016/j.ecolind.2024.112205  Published Date: 2024 AUG  

摘要: Urban cluster carbon sinks are key parts of the terrestrial carbon cycle, and play an important role in global climate change. Based on the inversion results of net ecosystem productivity (NEP) in Middle Reaches of the Yangtze River Urban Agglomeration (MRYRUA), this study considered the influence of both natural environmental and socioeconomic factors on NEP, and investigated the driving mechanism of carbon sink emphasizing spatial and temporal heterogeneity by the geographically and temporally weighted regression model (GTWR). Results demonstrated that (1) During 2008-2020, the annual average NEP was positive in MRYRUA, and the carbon sink effect of terrestrial ecosystem increased. (2) In MRYRUA, Precipitation and DEM were positively correlated with carbon sinks, opposite for temperature, percentage of water areas and population density. (3) During the study period, the influence of natural environmental factors, such as temperature and precipitation on NEP grew gradually weaker, whereas that of socioeconomic factors increased. The influence of urbanization rate, night lights index and factors of industrial structure changed from negative to positive, while percentage of builtup area had an increasing negative effect on NEP. Based on the conclusions above, this study proposed differentiated policy implications, including improving vegetation hydrothermal environment, controlling urban expansion and accelerating industrial transformation. It would provide empirical inspiration for attaining peak carbon, carbon neutrality, and sustainable development goals.

作者关键词: Net ecosystem productivity; Carbon sinks; Driving mechanisms; Geographically and temporally weighted; regression; Middle Reaches of Yangtze River Urban; Agglomerations

KeyWords Plus: NET PRIMARY PRODUCTIVITY; CLIMATE-CHANGE; NATURAL VEGETATION; POPULATION-GROWTH; CHINA; DYNAMICS; IMPACTS; COVER; SEQUESTRATION; REGION

地址: [Pang, Bowen; Liu, Yaolin; An, Rui; Xie, Yifan; Tong, Zhaomin; Liu, Yanfang] Wuhan Univ, Sch Resource & Environm Sci, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

[Liu, Yaolin] Wuhan Univ, Key Lab Geog Informat Syst, Minist Educ, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

[Liu, Yaolin] Wuhan Univ, Collaborat Innovat Ctr Geospatial Informat Technol, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

[Liu, Yaolin] Duke Kunshan Univ, 8 Duke Ave, Kunshan 215316, Jiangsu Prov, Peoples R China.

通讯作者地址: Liu, YL (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

电子邮件地址: bowen_pang@whu.edu.cn; yaolin610@yeah.net; anrui_sres@whu.edu.cn; yfliu610@yeah.net

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