Quantifying the ecological carrying capacity of grasslands in Inner Mongolia.

Quantifying the ecological carrying capacity has emerged as a crucial factor for maintaining ecosystem stability for sustainable development in vulnerable eco-regions. Here, we propose a new framework for ecological carrying capacity quantification suitable for vulnerable eco-regions. We applied thi...

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Main Authors: Caiyun Guo, Shuyu Song, Dongsheng Zhao, Shilin Luo, Lingchun Yang, Gege Xie
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0291381&type=printable
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author Caiyun Guo
Shuyu Song
Dongsheng Zhao
Shilin Luo
Lingchun Yang
Gege Xie
author_facet Caiyun Guo
Shuyu Song
Dongsheng Zhao
Shilin Luo
Lingchun Yang
Gege Xie
author_sort Caiyun Guo
collection DOAJ
description Quantifying the ecological carrying capacity has emerged as a crucial factor for maintaining ecosystem stability for sustainable development in vulnerable eco-regions. Here, we propose a new framework for ecological carrying capacity quantification suitable for vulnerable eco-regions. We applied this framework to calculate the ecological carrying capacity of Inner Mongolia from 1987-2015 and used a geographical detector to identify the driving factors behind spatial heterogeneity. Our results revealed the following. (1) The above-ground net primary production (ANPP) required to support the ecosystem service of soil conservation (ANPPSC) decreased from northeast to southwest, whereas the distribution pattern of ANPP required to support the ecosystem service of sand fixation (ANPPSF) exhibited a contrary trend. The average annual ANPP required to support the ecosystem service of natural regeneration (ANPPNR) in Inner Mongolia from 1987 to 2015 was 101.27 gCm-2year-1, revealing a similar spatial distribution with ANPP. (2) The total ecological carrying capacity of Inner Mongolian grassland was 78.52 million sheep unit hm-2. The regions with insufficient provisioning service capability accounted for 4.18% of the total area, primarily concentrated in the east and northwest. (3) The average optimal livestock number for grasslands in Inner Mongolia was 1.59 sheep unit hm-2 from 1987-2015, ranging from 0.77 to 1.69 sheep unit hm-2 across different zones. The average ecological carrying capacity of the cold temperate humid, medium-temperate arid, and warm temperate semi-humid regions was less than 1.08 sheep unit m-2, suggesting a need to prohibit grazing in these areas. (4) The primary influencing factors affecting ecological carrying capacity distribution were normalized difference vegetation index (NDVI), precipitation, and soil type. The framework developed herein can help identify sustainable development potential from the ecosystem service perspective and effectively contribute to decision-making in grassland ecosystem management.
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spelling doaj.art-17ccdc2e0f4140778fc0d525eee790452023-12-12T05:33:33ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-011811e029138110.1371/journal.pone.0291381Quantifying the ecological carrying capacity of grasslands in Inner Mongolia.Caiyun GuoShuyu SongDongsheng ZhaoShilin LuoLingchun YangGege XieQuantifying the ecological carrying capacity has emerged as a crucial factor for maintaining ecosystem stability for sustainable development in vulnerable eco-regions. Here, we propose a new framework for ecological carrying capacity quantification suitable for vulnerable eco-regions. We applied this framework to calculate the ecological carrying capacity of Inner Mongolia from 1987-2015 and used a geographical detector to identify the driving factors behind spatial heterogeneity. Our results revealed the following. (1) The above-ground net primary production (ANPP) required to support the ecosystem service of soil conservation (ANPPSC) decreased from northeast to southwest, whereas the distribution pattern of ANPP required to support the ecosystem service of sand fixation (ANPPSF) exhibited a contrary trend. The average annual ANPP required to support the ecosystem service of natural regeneration (ANPPNR) in Inner Mongolia from 1987 to 2015 was 101.27 gCm-2year-1, revealing a similar spatial distribution with ANPP. (2) The total ecological carrying capacity of Inner Mongolian grassland was 78.52 million sheep unit hm-2. The regions with insufficient provisioning service capability accounted for 4.18% of the total area, primarily concentrated in the east and northwest. (3) The average optimal livestock number for grasslands in Inner Mongolia was 1.59 sheep unit hm-2 from 1987-2015, ranging from 0.77 to 1.69 sheep unit hm-2 across different zones. The average ecological carrying capacity of the cold temperate humid, medium-temperate arid, and warm temperate semi-humid regions was less than 1.08 sheep unit m-2, suggesting a need to prohibit grazing in these areas. (4) The primary influencing factors affecting ecological carrying capacity distribution were normalized difference vegetation index (NDVI), precipitation, and soil type. The framework developed herein can help identify sustainable development potential from the ecosystem service perspective and effectively contribute to decision-making in grassland ecosystem management.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0291381&type=printable
spellingShingle Caiyun Guo
Shuyu Song
Dongsheng Zhao
Shilin Luo
Lingchun Yang
Gege Xie
Quantifying the ecological carrying capacity of grasslands in Inner Mongolia.
PLoS ONE
title Quantifying the ecological carrying capacity of grasslands in Inner Mongolia.
title_full Quantifying the ecological carrying capacity of grasslands in Inner Mongolia.
title_fullStr Quantifying the ecological carrying capacity of grasslands in Inner Mongolia.
title_full_unstemmed Quantifying the ecological carrying capacity of grasslands in Inner Mongolia.
title_short Quantifying the ecological carrying capacity of grasslands in Inner Mongolia.
title_sort quantifying the ecological carrying capacity of grasslands in inner mongolia
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0291381&type=printable
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