Contributions of climate change and human activities to vegetation dynamics in Qilian Mountain National Park, northwest China

A series of policies have been implicated in the Qilian Mountain National Park (QLMNP) to combat climate change (CC). Distinguishing the impacts of CC and human activities (HA) on vegetation dynamics in QLMNP is crucial for policies implementation and ecological conservation. Here, we quantify the c...

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Autores principales:	Qing Peng, Ranghui Wang, Yelin Jiang, Cheng Li
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Vegetation dynamics Climate change Human activities Qilian Mountain National Park Net primary productivity (NPP) Ecological restoration projects Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/e120360cca664e31b48ab4508a7eba50
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spelling	oai:doaj.org-article:e120360cca664e31b48ab4508a7eba502021-12-04T04:34:34ZContributions of climate change and human activities to vegetation dynamics in Qilian Mountain National Park, northwest China2351-989410.1016/j.gecco.2021.e01947https://doaj.org/article/e120360cca664e31b48ab4508a7eba502021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2351989421004972https://doaj.org/toc/2351-9894A series of policies have been implicated in the Qilian Mountain National Park (QLMNP) to combat climate change (CC). Distinguishing the impacts of CC and human activities (HA) on vegetation dynamics in QLMNP is crucial for policies implementation and ecological conservation. Here, we quantify the contributions of CC and HA to net primary productivity (NPP) using partial derivatives and dividing them into six different scenarios. The results indicated that the average annual NPP over the whole park significantly increased (2.14 g C m−2 yr−1) and a major portion of QLMNP (74.39%) exhibited a significant vegetation restoration; only 0.14% of the park underwent significant degradation during 2000–2019. Precipitation was the dominant climatic factor that influenced vegetation dynamics in QLMNP (56.66%), while the influences of temperature and solar radiation account for 28.92% and 14.42%, respectively. The climatic factors were positively correlated with NPP in most regions of the QLMNP. The relative contributions of CC and HA to the increase in NPP were 39.70% and 60.30%, respectively. The HA-dominated (NPP) areas contained most ecological restoration projects. In addition, substantial differences were observed in the CC-dominated and HA-dominated areas; 70.73% of the CC-dominated areas and 29.27% of the HA-dominated areas showed the decrease in NPP. Moreover, CC-dominated areas were mainly distributed in low-value NPP areas, and the precipitation was negatively correlated with NPP in this area. In general, CC and the ecological restoration projects made a positive contribution to the eco-environment of QLMNP.Qing PengRanghui WangYelin JiangCheng LiElsevierarticleVegetation dynamicsClimate changeHuman activitiesQilian Mountain National ParkNet primary productivity (NPP)Ecological restoration projectsEcologyQH540-549.5ENGlobal Ecology and Conservation, Vol 32, Iss , Pp e01947- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Vegetation dynamics Climate change Human activities Qilian Mountain National Park Net primary productivity (NPP) Ecological restoration projects Ecology QH540-549.5
spellingShingle	Vegetation dynamics Climate change Human activities Qilian Mountain National Park Net primary productivity (NPP) Ecological restoration projects Ecology QH540-549.5 Qing Peng Ranghui Wang Yelin Jiang Cheng Li Contributions of climate change and human activities to vegetation dynamics in Qilian Mountain National Park, northwest China
description	A series of policies have been implicated in the Qilian Mountain National Park (QLMNP) to combat climate change (CC). Distinguishing the impacts of CC and human activities (HA) on vegetation dynamics in QLMNP is crucial for policies implementation and ecological conservation. Here, we quantify the contributions of CC and HA to net primary productivity (NPP) using partial derivatives and dividing them into six different scenarios. The results indicated that the average annual NPP over the whole park significantly increased (2.14 g C m−2 yr−1) and a major portion of QLMNP (74.39%) exhibited a significant vegetation restoration; only 0.14% of the park underwent significant degradation during 2000–2019. Precipitation was the dominant climatic factor that influenced vegetation dynamics in QLMNP (56.66%), while the influences of temperature and solar radiation account for 28.92% and 14.42%, respectively. The climatic factors were positively correlated with NPP in most regions of the QLMNP. The relative contributions of CC and HA to the increase in NPP were 39.70% and 60.30%, respectively. The HA-dominated (NPP) areas contained most ecological restoration projects. In addition, substantial differences were observed in the CC-dominated and HA-dominated areas; 70.73% of the CC-dominated areas and 29.27% of the HA-dominated areas showed the decrease in NPP. Moreover, CC-dominated areas were mainly distributed in low-value NPP areas, and the precipitation was negatively correlated with NPP in this area. In general, CC and the ecological restoration projects made a positive contribution to the eco-environment of QLMNP.
format	article
author	Qing Peng Ranghui Wang Yelin Jiang Cheng Li
author_facet	Qing Peng Ranghui Wang Yelin Jiang Cheng Li
author_sort	Qing Peng
title	Contributions of climate change and human activities to vegetation dynamics in Qilian Mountain National Park, northwest China
title_short	Contributions of climate change and human activities to vegetation dynamics in Qilian Mountain National Park, northwest China
title_full	Contributions of climate change and human activities to vegetation dynamics in Qilian Mountain National Park, northwest China
title_fullStr	Contributions of climate change and human activities to vegetation dynamics in Qilian Mountain National Park, northwest China
title_full_unstemmed	Contributions of climate change and human activities to vegetation dynamics in Qilian Mountain National Park, northwest China
title_sort	contributions of climate change and human activities to vegetation dynamics in qilian mountain national park, northwest china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/e120360cca664e31b48ab4508a7eba50
work_keys_str_mv	AT qingpeng contributionsofclimatechangeandhumanactivitiestovegetationdynamicsinqilianmountainnationalparknorthwestchina AT ranghuiwang contributionsofclimatechangeandhumanactivitiestovegetationdynamicsinqilianmountainnationalparknorthwestchina AT yelinjiang contributionsofclimatechangeandhumanactivitiestovegetationdynamicsinqilianmountainnationalparknorthwestchina AT chengli contributionsofclimatechangeandhumanactivitiestovegetationdynamicsinqilianmountainnationalparknorthwestchina
_version_	1718373000242266112

Contributions of climate change and human activities to vegetation dynamics in Qilian Mountain National Park, northwest China

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