Impacts of land conversion and management measures on net primary productivity in semi-arid grassland

Ecological restoration measures implemented in China have profoundly impacted vegetation NPP. This study aimed to estimate the effects of the land conversion and management measures on the grassland ecosystem in semi-arid regions. Land use data were employed from 2000 to 2015 to compare land convers...

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Autores principales:	Feifei Cao, Jiaxun Li, Xiao Fu, Gang Wu
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2020
Materias:	grassland degradation land use and land cover change management measures and policies net primary productivity (npp) xilingol grassland anthropogenic/human activities affects Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/6b96b8061e03493bb5f5c219700da838
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spelling	oai:doaj.org-article:6b96b8061e03493bb5f5c219700da8382021-12-02T17:55:40ZImpacts of land conversion and management measures on net primary productivity in semi-arid grassland2332-887810.1080/20964129.2020.1749010https://doaj.org/article/6b96b8061e03493bb5f5c219700da8382020-12-01T00:00:00Zhttp://dx.doi.org/10.1080/20964129.2020.1749010https://doaj.org/toc/2332-8878Ecological restoration measures implemented in China have profoundly impacted vegetation NPP. This study aimed to estimate the effects of the land conversion and management measures on the grassland ecosystem in semi-arid regions. Land use data were employed from 2000 to 2015 to compare land conversion and coverage changes in Xilingol grassland. Then, the contributions of land conversion and management policies were quantified by assessing the difference between actual NPP and climate-induced NPP changes. The results indicated that the grassland area had a net loss of 534.42 km2, and the net area of increased vegetation coverage was 74,683.05 km2. Furthermore, the total NPP increased by 8,010.73 Gg C·yr−1 (1 Gg = 109 g), of which the human activities, including grazing management measures (+6,809.40 Gg C·yr−1) and land conversion (45.72 Gg C·yr−1) contributed to 85.58% of the increase in NPP. Transformation from desert and farmland dominated grassland expansion and NPP increase, while urbanization and desertification caused large grassland reduction and NPP loss. The grazing management increased vegetation NPP in most regions except for some regions in the desert steppe and the farming-pastoral zone. Related policies should be further adjusted to strengthen the management of the desert steppe and farming-pastoral regions.Feifei CaoJiaxun LiXiao FuGang WuTaylor & Francis Grouparticlegrassland degradationland use and land cover changemanagement measures and policiesnet primary productivity (npp)xilingol grasslandanthropogenic/human activities affectsEcologyQH540-549.5ENEcosystem Health and Sustainability, Vol 6, Iss 1 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	grassland degradation land use and land cover change management measures and policies net primary productivity (npp) xilingol grassland anthropogenic/human activities affects Ecology QH540-549.5
spellingShingle	grassland degradation land use and land cover change management measures and policies net primary productivity (npp) xilingol grassland anthropogenic/human activities affects Ecology QH540-549.5 Feifei Cao Jiaxun Li Xiao Fu Gang Wu Impacts of land conversion and management measures on net primary productivity in semi-arid grassland
description	Ecological restoration measures implemented in China have profoundly impacted vegetation NPP. This study aimed to estimate the effects of the land conversion and management measures on the grassland ecosystem in semi-arid regions. Land use data were employed from 2000 to 2015 to compare land conversion and coverage changes in Xilingol grassland. Then, the contributions of land conversion and management policies were quantified by assessing the difference between actual NPP and climate-induced NPP changes. The results indicated that the grassland area had a net loss of 534.42 km2, and the net area of increased vegetation coverage was 74,683.05 km2. Furthermore, the total NPP increased by 8,010.73 Gg C·yr−1 (1 Gg = 109 g), of which the human activities, including grazing management measures (+6,809.40 Gg C·yr−1) and land conversion (45.72 Gg C·yr−1) contributed to 85.58% of the increase in NPP. Transformation from desert and farmland dominated grassland expansion and NPP increase, while urbanization and desertification caused large grassland reduction and NPP loss. The grazing management increased vegetation NPP in most regions except for some regions in the desert steppe and the farming-pastoral zone. Related policies should be further adjusted to strengthen the management of the desert steppe and farming-pastoral regions.
format	article
author	Feifei Cao Jiaxun Li Xiao Fu Gang Wu
author_facet	Feifei Cao Jiaxun Li Xiao Fu Gang Wu
author_sort	Feifei Cao
title	Impacts of land conversion and management measures on net primary productivity in semi-arid grassland
title_short	Impacts of land conversion and management measures on net primary productivity in semi-arid grassland
title_full	Impacts of land conversion and management measures on net primary productivity in semi-arid grassland
title_fullStr	Impacts of land conversion and management measures on net primary productivity in semi-arid grassland
title_full_unstemmed	Impacts of land conversion and management measures on net primary productivity in semi-arid grassland
title_sort	impacts of land conversion and management measures on net primary productivity in semi-arid grassland
publisher	Taylor & Francis Group
publishDate	2020
url	https://doaj.org/article/6b96b8061e03493bb5f5c219700da838
work_keys_str_mv	AT feifeicao impactsoflandconversionandmanagementmeasuresonnetprimaryproductivityinsemiaridgrassland AT jiaxunli impactsoflandconversionandmanagementmeasuresonnetprimaryproductivityinsemiaridgrassland AT xiaofu impactsoflandconversionandmanagementmeasuresonnetprimaryproductivityinsemiaridgrassland AT gangwu impactsoflandconversionandmanagementmeasuresonnetprimaryproductivityinsemiaridgrassland
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Impacts of land conversion and management measures on net primary productivity in semi-arid grassland

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