Ecological restoration policy should pay more attention to the high productivity grasslands

To address severe grassland degradation problems, China has been implementing several national restoration programs, which have been reported to mitigate the deterioration of grassland ecosystem function. However, the regional differences in the effectiveness of the programs are not yet known. In th...

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Autores principales:	Huimin Yan, Zhichao Xue, Zhongen Niu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Ecological restoration programs Overgrazing Inner Mongolia grasslands Gross primary productivity Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/ab0f3830faf64942bf7f95fe9c699313
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id	oai:doaj.org-article:ab0f3830faf64942bf7f95fe9c699313
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spelling	oai:doaj.org-article:ab0f3830faf64942bf7f95fe9c6993132021-12-01T04:56:14ZEcological restoration policy should pay more attention to the high productivity grasslands1470-160X10.1016/j.ecolind.2021.107938https://doaj.org/article/ab0f3830faf64942bf7f95fe9c6993132021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21006038https://doaj.org/toc/1470-160XTo address severe grassland degradation problems, China has been implementing several national restoration programs, which have been reported to mitigate the deterioration of grassland ecosystem function. However, the regional differences in the effectiveness of the programs are not yet known. In this study, gross primary productivity (GPP) was selected as an indicator to analyze grassland degradation dynamics, and the residual trend method was used to assess the driving force of grassland degradation based on GPP. The results showed the GPP of Inner Mongolia grassland significantly increased by 3.94 g C m−2 yr−1 during 2000–2015, climate change was the dominant driving factors, while human activities slightly reduced grassland productivity (−0.17 g C m−2 yr−1). But there are obviously spatial heterogeneous on the impact of human activities. Specifically, grassland management significantly promoted the GPP increase in semidesert steppe, while grazing activity decreased the GPP in meadow and typical steppes. These findings suggest that ecological restoration programs could obviously improve vegetation functioning in ecologically fragile grassland which has relatively very low productivity. However, the grasslands with relative higher productivity or initially non-degraded are still facing with great degradation risk due to the continuous growing livestock scale. Therefore, policy-makers should pay more attention to the originally non-degraded or high productivity grasslands, especially at those years the negative impacts of intensive grazing could be concealed by the well-growth grass under abundant precipitation.Huimin YanZhichao XueZhongen NiuElsevierarticleEcological restoration programsOvergrazingInner Mongolia grasslandsGross primary productivityEcologyQH540-549.5ENEcological Indicators, Vol 129, Iss , Pp 107938- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ecological restoration programs Overgrazing Inner Mongolia grasslands Gross primary productivity Ecology QH540-549.5
spellingShingle	Ecological restoration programs Overgrazing Inner Mongolia grasslands Gross primary productivity Ecology QH540-549.5 Huimin Yan Zhichao Xue Zhongen Niu Ecological restoration policy should pay more attention to the high productivity grasslands
description	To address severe grassland degradation problems, China has been implementing several national restoration programs, which have been reported to mitigate the deterioration of grassland ecosystem function. However, the regional differences in the effectiveness of the programs are not yet known. In this study, gross primary productivity (GPP) was selected as an indicator to analyze grassland degradation dynamics, and the residual trend method was used to assess the driving force of grassland degradation based on GPP. The results showed the GPP of Inner Mongolia grassland significantly increased by 3.94 g C m−2 yr−1 during 2000–2015, climate change was the dominant driving factors, while human activities slightly reduced grassland productivity (−0.17 g C m−2 yr−1). But there are obviously spatial heterogeneous on the impact of human activities. Specifically, grassland management significantly promoted the GPP increase in semidesert steppe, while grazing activity decreased the GPP in meadow and typical steppes. These findings suggest that ecological restoration programs could obviously improve vegetation functioning in ecologically fragile grassland which has relatively very low productivity. However, the grasslands with relative higher productivity or initially non-degraded are still facing with great degradation risk due to the continuous growing livestock scale. Therefore, policy-makers should pay more attention to the originally non-degraded or high productivity grasslands, especially at those years the negative impacts of intensive grazing could be concealed by the well-growth grass under abundant precipitation.
format	article
author	Huimin Yan Zhichao Xue Zhongen Niu
author_facet	Huimin Yan Zhichao Xue Zhongen Niu
author_sort	Huimin Yan
title	Ecological restoration policy should pay more attention to the high productivity grasslands
title_short	Ecological restoration policy should pay more attention to the high productivity grasslands
title_full	Ecological restoration policy should pay more attention to the high productivity grasslands
title_fullStr	Ecological restoration policy should pay more attention to the high productivity grasslands
title_full_unstemmed	Ecological restoration policy should pay more attention to the high productivity grasslands
title_sort	ecological restoration policy should pay more attention to the high productivity grasslands
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ab0f3830faf64942bf7f95fe9c699313
work_keys_str_mv	AT huiminyan ecologicalrestorationpolicyshouldpaymoreattentiontothehighproductivitygrasslands AT zhichaoxue ecologicalrestorationpolicyshouldpaymoreattentiontothehighproductivitygrasslands AT zhongenniu ecologicalrestorationpolicyshouldpaymoreattentiontothehighproductivitygrasslands
_version_	1718405682311462912

Ecological restoration policy should pay more attention to the high productivity grasslands

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