Effects of climatic factors on the net primary productivity in the source region of Yangtze River, China

Abstract The ecosystem of the Source Region of Yangtze River (SRYR) is highly susceptible to climate change. In this study, the spatial–temporal variation of NPP from 2000 to 2014 was analyzed, using outputs of Carnegie–Ames–Stanford Approach model. Then the correlation characteristics of NPP and cl...

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Autores principales:	Zhe Yuan, Yongqiang Wang, Jijun Xu, Zhiguang Wu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/caa9fd685c294cd28fd16e2c8cead1c6
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spelling	oai:doaj.org-article:caa9fd685c294cd28fd16e2c8cead1c62021-12-02T14:02:33ZEffects of climatic factors on the net primary productivity in the source region of Yangtze River, China10.1038/s41598-020-80494-92045-2322https://doaj.org/article/caa9fd685c294cd28fd16e2c8cead1c62021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80494-9https://doaj.org/toc/2045-2322Abstract The ecosystem of the Source Region of Yangtze River (SRYR) is highly susceptible to climate change. In this study, the spatial–temporal variation of NPP from 2000 to 2014 was analyzed, using outputs of Carnegie–Ames–Stanford Approach model. Then the correlation characteristics of NPP and climatic factors were evaluated. The results indicate that: (1) The average NPP in the SRYR is 100.0 gC/m2 from 2000 to 2014, and it shows an increasing trend from northwest to southeast. The responses of NPP to altitude varied among the regions with the altitude below 3500 m, between 3500 to 4500 m and above 4500 m, which could be attributed to the altitude associated variations of climatic factors and vegetation types; (2) The total NPP of SRYR increased by 0.18 TgC per year in the context of the warmer and wetter climate during 2000–2014. The NPP was significantly and positively correlated with annual temperature and precipitation at interannual time scales. Temperature in February, March, May and September make greater contribution to NPP than that in other months. And precipitation in July played a more crucial role in influencing NPP than that in other months; (3) Climatic factors caused the NPP to increase in most of the SRYR. Impacts of human activities were concentrated mainly in downstream region and is the primary reason for declines in NPP.Zhe YuanYongqiang WangJijun XuZhiguang WuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhe Yuan Yongqiang Wang Jijun Xu Zhiguang Wu Effects of climatic factors on the net primary productivity in the source region of Yangtze River, China
description	Abstract The ecosystem of the Source Region of Yangtze River (SRYR) is highly susceptible to climate change. In this study, the spatial–temporal variation of NPP from 2000 to 2014 was analyzed, using outputs of Carnegie–Ames–Stanford Approach model. Then the correlation characteristics of NPP and climatic factors were evaluated. The results indicate that: (1) The average NPP in the SRYR is 100.0 gC/m2 from 2000 to 2014, and it shows an increasing trend from northwest to southeast. The responses of NPP to altitude varied among the regions with the altitude below 3500 m, between 3500 to 4500 m and above 4500 m, which could be attributed to the altitude associated variations of climatic factors and vegetation types; (2) The total NPP of SRYR increased by 0.18 TgC per year in the context of the warmer and wetter climate during 2000–2014. The NPP was significantly and positively correlated with annual temperature and precipitation at interannual time scales. Temperature in February, March, May and September make greater contribution to NPP than that in other months. And precipitation in July played a more crucial role in influencing NPP than that in other months; (3) Climatic factors caused the NPP to increase in most of the SRYR. Impacts of human activities were concentrated mainly in downstream region and is the primary reason for declines in NPP.
format	article
author	Zhe Yuan Yongqiang Wang Jijun Xu Zhiguang Wu
author_facet	Zhe Yuan Yongqiang Wang Jijun Xu Zhiguang Wu
author_sort	Zhe Yuan
title	Effects of climatic factors on the net primary productivity in the source region of Yangtze River, China
title_short	Effects of climatic factors on the net primary productivity in the source region of Yangtze River, China
title_full	Effects of climatic factors on the net primary productivity in the source region of Yangtze River, China
title_fullStr	Effects of climatic factors on the net primary productivity in the source region of Yangtze River, China
title_full_unstemmed	Effects of climatic factors on the net primary productivity in the source region of Yangtze River, China
title_sort	effects of climatic factors on the net primary productivity in the source region of yangtze river, china
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/caa9fd685c294cd28fd16e2c8cead1c6
work_keys_str_mv	AT zheyuan effectsofclimaticfactorsonthenetprimaryproductivityinthesourceregionofyangtzeriverchina AT yongqiangwang effectsofclimaticfactorsonthenetprimaryproductivityinthesourceregionofyangtzeriverchina AT jijunxu effectsofclimaticfactorsonthenetprimaryproductivityinthesourceregionofyangtzeriverchina AT zhiguangwu effectsofclimaticfactorsonthenetprimaryproductivityinthesourceregionofyangtzeriverchina
_version_	1718392109458784256

Effects of climatic factors on the net primary productivity in the source region of Yangtze River, China

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