Afforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in Southwest China

Large-scale Ecosystem Restoration Projects (ESPs) have been launched to restore vegetation and increase carbon stocks across China. Whether these ESPs could mitigate the loss of carbon emission due to vegetation degradation caused by human disturbances, such as urban expansion, remains unclear. In t...

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Autores principales:	Zhi Ding, Hui Zheng, He Li, Pujia Yu, Weidong Man, Mingyue Liu, Xuguang Tang, Ying Liu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	GPP Legacy effect LUCC Karst Ecosystem Restoration Projects Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/06a50d0aa74f42c3bb226cd5a50f1dff
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spelling	oai:doaj.org-article:06a50d0aa74f42c3bb226cd5a50f1dff2021-12-01T04:50:15ZAfforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in Southwest China1470-160X10.1016/j.ecolind.2021.107641https://doaj.org/article/06a50d0aa74f42c3bb226cd5a50f1dff2021-08-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X2100306Xhttps://doaj.org/toc/1470-160XLarge-scale Ecosystem Restoration Projects (ESPs) have been launched to restore vegetation and increase carbon stocks across China. Whether these ESPs could mitigate the loss of carbon emission due to vegetation degradation caused by human disturbances, such as urban expansion, remains unclear. In this study, we analysed the major human-driven land use and land cover change (LUCC) and evaluated their impacts on gross primary productivity (GPP) dynamics in Southwest China during 2001–2015. Results showed that afforestation, agricultural reclamation, urban expansion and grass planting were the major LUCC. Afforestation accounted for approximately 52% of the LUCC area and greatly contributed to the GPP increase, particularly the multiyear accumulative GPP (5.26 Tg C) in the whole area. Urban expansion only accounted for 20% of the LUCC area and led to the decrease of multiyear accumulative GPP (2.52 Tg C) in the whole area. In terms of legacy effect, afforestation mitigated the GPP decrease caused by urban expansion. However, the urban expansion rate (~15.01% per year) was much faster than that of afforestation (~0.13% per year). Therefore, urban expansion might offset more GPP increase from afforestation in the future. Hence, an effective regulation of urban expansion whilst strengthening conservation efforts is urgently needed to enhance vegetation cover and C stock in Southwest China.Zhi DingHui ZhengHe LiPujia YuWeidong ManMingyue LiuXuguang TangYing LiuElsevierarticleGPPLegacy effectLUCCKarstEcosystem Restoration ProjectsEcologyQH540-549.5ENEcological Indicators, Vol 127, Iss , Pp 107641- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	GPP Legacy effect LUCC Karst Ecosystem Restoration Projects Ecology QH540-549.5
spellingShingle	GPP Legacy effect LUCC Karst Ecosystem Restoration Projects Ecology QH540-549.5 Zhi Ding Hui Zheng He Li Pujia Yu Weidong Man Mingyue Liu Xuguang Tang Ying Liu Afforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in Southwest China
description	Large-scale Ecosystem Restoration Projects (ESPs) have been launched to restore vegetation and increase carbon stocks across China. Whether these ESPs could mitigate the loss of carbon emission due to vegetation degradation caused by human disturbances, such as urban expansion, remains unclear. In this study, we analysed the major human-driven land use and land cover change (LUCC) and evaluated their impacts on gross primary productivity (GPP) dynamics in Southwest China during 2001–2015. Results showed that afforestation, agricultural reclamation, urban expansion and grass planting were the major LUCC. Afforestation accounted for approximately 52% of the LUCC area and greatly contributed to the GPP increase, particularly the multiyear accumulative GPP (5.26 Tg C) in the whole area. Urban expansion only accounted for 20% of the LUCC area and led to the decrease of multiyear accumulative GPP (2.52 Tg C) in the whole area. In terms of legacy effect, afforestation mitigated the GPP decrease caused by urban expansion. However, the urban expansion rate (~15.01% per year) was much faster than that of afforestation (~0.13% per year). Therefore, urban expansion might offset more GPP increase from afforestation in the future. Hence, an effective regulation of urban expansion whilst strengthening conservation efforts is urgently needed to enhance vegetation cover and C stock in Southwest China.
format	article
author	Zhi Ding Hui Zheng He Li Pujia Yu Weidong Man Mingyue Liu Xuguang Tang Ying Liu
author_facet	Zhi Ding Hui Zheng He Li Pujia Yu Weidong Man Mingyue Liu Xuguang Tang Ying Liu
author_sort	Zhi Ding
title	Afforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in Southwest China
title_short	Afforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in Southwest China
title_full	Afforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in Southwest China
title_fullStr	Afforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in Southwest China
title_full_unstemmed	Afforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in Southwest China
title_sort	afforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in southwest china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/06a50d0aa74f42c3bb226cd5a50f1dff
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Afforestation-driven increases in terrestrial gross primary productivity are partly offset by urban expansion in Southwest China

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