Homogenization in Species Composition and No Change in Aboveground Biomass Across Tibetan Permafrost Regions Over Ten Years
The Tibetan Plateau is the most extensive high-elevation grassland on Earth, with the largest expanse of high-elevation permafrost. It is experiencing climate warming that is projected to continue at rates above the global mean, potentially jeopardizing ecosystem functioning. We conducted a broad-sc...
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| Format: | Article |
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Frontiers Media S.A.
2022-08-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2022.932993/full |
| _version_ | 1818483621186502656 |
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| author | Yan Yang Kari Klanderud Yinghui Yang Huaan Jin Yaqiong Lu Tongzuo Zhang Genxu Wang |
| author_facet | Yan Yang Kari Klanderud Yinghui Yang Huaan Jin Yaqiong Lu Tongzuo Zhang Genxu Wang |
| author_sort | Yan Yang |
| collection | DOAJ |
| description | The Tibetan Plateau is the most extensive high-elevation grassland on Earth, with the largest expanse of high-elevation permafrost. It is experiencing climate warming that is projected to continue at rates above the global mean, potentially jeopardizing ecosystem functioning. We conducted a broad-scale resampling project in the permafrost region of Tibet to examine if plant production and diversity had changed over time. We recorded vascular plant species occurrences and harvested aboveground biomass at 36 alpine grassland sites in 2008 and 2018. Our results show that aboveground biomass increased for legumes and forbs, but decreased for grasses and sedges, resulting in no overall change in the aboveground biomass during the 10-year period. Our results indicate that functional group abundance may shift from grasses and sedges toward more legumes and forbs, and that species composition is becoming more similar between grassland types, and thus, beta diversity is decreasing in the permafrost region of Tibet. |
| first_indexed | 2024-12-10T15:44:18Z |
| format | Article |
| id | doaj.art-b00831c8717d4bad84cf6e08cdffaf42 |
| institution | Directory Open Access Journal |
| issn | 2296-665X |
| language | English |
| last_indexed | 2024-12-10T15:44:18Z |
| publishDate | 2022-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Environmental Science |
| spelling | doaj.art-b00831c8717d4bad84cf6e08cdffaf422022-12-22T01:43:01ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2022-08-011010.3389/fenvs.2022.932993932993Homogenization in Species Composition and No Change in Aboveground Biomass Across Tibetan Permafrost Regions Over Ten YearsYan Yang0Kari Klanderud1Yinghui Yang2Huaan Jin3Yaqiong Lu4Tongzuo Zhang5Genxu Wang6Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, ChinaFaculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, NorwaySchool of Mathematics, Southwest Jiaotong University, Chengdu, ChinaKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, ChinaKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, ChinaNorthwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, ChinaThe Tibetan Plateau is the most extensive high-elevation grassland on Earth, with the largest expanse of high-elevation permafrost. It is experiencing climate warming that is projected to continue at rates above the global mean, potentially jeopardizing ecosystem functioning. We conducted a broad-scale resampling project in the permafrost region of Tibet to examine if plant production and diversity had changed over time. We recorded vascular plant species occurrences and harvested aboveground biomass at 36 alpine grassland sites in 2008 and 2018. Our results show that aboveground biomass increased for legumes and forbs, but decreased for grasses and sedges, resulting in no overall change in the aboveground biomass during the 10-year period. Our results indicate that functional group abundance may shift from grasses and sedges toward more legumes and forbs, and that species composition is becoming more similar between grassland types, and thus, beta diversity is decreasing in the permafrost region of Tibet.https://www.frontiersin.org/articles/10.3389/fenvs.2022.932993/fullproductivityresamplingclimate warmingspecies richnessthe Tibetan Plateau |
| spellingShingle | Yan Yang Kari Klanderud Yinghui Yang Huaan Jin Yaqiong Lu Tongzuo Zhang Genxu Wang Homogenization in Species Composition and No Change in Aboveground Biomass Across Tibetan Permafrost Regions Over Ten Years Frontiers in Environmental Science productivity resampling climate warming species richness the Tibetan Plateau |
| title | Homogenization in Species Composition and No Change in Aboveground Biomass Across Tibetan Permafrost Regions Over Ten Years |
| title_full | Homogenization in Species Composition and No Change in Aboveground Biomass Across Tibetan Permafrost Regions Over Ten Years |
| title_fullStr | Homogenization in Species Composition and No Change in Aboveground Biomass Across Tibetan Permafrost Regions Over Ten Years |
| title_full_unstemmed | Homogenization in Species Composition and No Change in Aboveground Biomass Across Tibetan Permafrost Regions Over Ten Years |
| title_short | Homogenization in Species Composition and No Change in Aboveground Biomass Across Tibetan Permafrost Regions Over Ten Years |
| title_sort | homogenization in species composition and no change in aboveground biomass across tibetan permafrost regions over ten years |
| topic | productivity resampling climate warming species richness the Tibetan Plateau |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2022.932993/full |
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