Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands
Positive relationships between plant species diversity and carbon attributes have been observed in grasslands, but synthesis studies of how plant diversity affects the carbon balance of grasslands and how the response ratio changes over time both remain limited. By conducting a global meta-analysis...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/abaf88 |
| _version_ | 1827870344905490432 |
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| author | Chao Wang Yujia Tang Xiaona Li Weiwei Zhang Chunqiao Zhao Cui Li |
| author_facet | Chao Wang Yujia Tang Xiaona Li Weiwei Zhang Chunqiao Zhao Cui Li |
| author_sort | Chao Wang |
| collection | DOAJ |
| description | Positive relationships between plant species diversity and carbon attributes have been observed in grasslands, but synthesis studies of how plant diversity affects the carbon balance of grasslands and how the response ratio changes over time both remain limited. By conducting a global meta-analysis with 811 paired observations of plant mixtures and monocultures from 83 studies in natural and manipulated grasslands, we investigated the impacts of plant diversity on six carbon attributes, its interaction with experimental duration, and the changes in carbon balance under different plant diversity loss scenarios in the future. We found that the aboveground biomass (AGB), belowground biomass (BGB), total biomass (TB), soil organic carbon (SOC), soil respiration (Rs), and heterotrophic respiration (Rh) significantly increased in the plant mixtures, and the response ratio for all carbon attributes increased logarithmically with species richness. We also found that the response ratio for all carbon attributes except Rs increased linearly with experimental duration. The increase in response ratio of AGB, BGB, TB, and SOC with species richness was more pronounced with the long-term experimental duration. Importantly, our results showed that the declines in carbon sequestration will be exacerbated by different plant diversity loss scenarios in the future. Our meta-analysis revealed that plant diversity loss has ubiquitous negative impacts on multiple carbon attributes in grasslands, underlined the interactive effects of plant diversity loss and experimental duration on carbon attributes, and suggested that the reduction of carbon storage in grasslands following biodiversity loss will be greater in the future. |
| first_indexed | 2024-03-12T15:55:30Z |
| format | Article |
| id | doaj.art-320fb71a80c74b2eb6f881ac179cdc41 |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T15:55:30Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-320fb71a80c74b2eb6f881ac179cdc412023-08-09T14:55:22ZengIOP PublishingEnvironmental Research Letters1748-93262020-01-01151010405510.1088/1748-9326/abaf88Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslandsChao Wang0https://orcid.org/0000-0002-8916-4735Yujia Tang1Xiaona Li2Weiwei Zhang3Chunqiao Zhao4Cui Li5Beijing Research and Development Center for Grasses and Environment, Beijing Academy of Agriculture and Forestry Sciences (BAAFS) , No. 9 Shuguang Garden Middle Road, Haidian District, Beijing 100097, People’s Republic of ChinaSchool of Life Sciences, Capital Normal University , Beijing 100048, People’s Republic of ChinaBeijing Research and Development Center for Grasses and Environment, Beijing Academy of Agriculture and Forestry Sciences (BAAFS) , No. 9 Shuguang Garden Middle Road, Haidian District, Beijing 100097, People’s Republic of ChinaBeijing Research and Development Center for Grasses and Environment, Beijing Academy of Agriculture and Forestry Sciences (BAAFS) , No. 9 Shuguang Garden Middle Road, Haidian District, Beijing 100097, People’s Republic of ChinaBeijing Research and Development Center for Grasses and Environment, Beijing Academy of Agriculture and Forestry Sciences (BAAFS) , No. 9 Shuguang Garden Middle Road, Haidian District, Beijing 100097, People’s Republic of ChinaBeijing Research and Development Center for Grasses and Environment, Beijing Academy of Agriculture and Forestry Sciences (BAAFS) , No. 9 Shuguang Garden Middle Road, Haidian District, Beijing 100097, People’s Republic of ChinaPositive relationships between plant species diversity and carbon attributes have been observed in grasslands, but synthesis studies of how plant diversity affects the carbon balance of grasslands and how the response ratio changes over time both remain limited. By conducting a global meta-analysis with 811 paired observations of plant mixtures and monocultures from 83 studies in natural and manipulated grasslands, we investigated the impacts of plant diversity on six carbon attributes, its interaction with experimental duration, and the changes in carbon balance under different plant diversity loss scenarios in the future. We found that the aboveground biomass (AGB), belowground biomass (BGB), total biomass (TB), soil organic carbon (SOC), soil respiration (Rs), and heterotrophic respiration (Rh) significantly increased in the plant mixtures, and the response ratio for all carbon attributes increased logarithmically with species richness. We also found that the response ratio for all carbon attributes except Rs increased linearly with experimental duration. The increase in response ratio of AGB, BGB, TB, and SOC with species richness was more pronounced with the long-term experimental duration. Importantly, our results showed that the declines in carbon sequestration will be exacerbated by different plant diversity loss scenarios in the future. Our meta-analysis revealed that plant diversity loss has ubiquitous negative impacts on multiple carbon attributes in grasslands, underlined the interactive effects of plant diversity loss and experimental duration on carbon attributes, and suggested that the reduction of carbon storage in grasslands following biodiversity loss will be greater in the future.https://doi.org/10.1088/1748-9326/abaf88plant diversitycarbon attributesexperimental durationcomplementary effectsgrasslands |
| spellingShingle | Chao Wang Yujia Tang Xiaona Li Weiwei Zhang Chunqiao Zhao Cui Li Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands Environmental Research Letters plant diversity carbon attributes experimental duration complementary effects grasslands |
| title | Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands |
| title_full | Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands |
| title_fullStr | Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands |
| title_full_unstemmed | Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands |
| title_short | Negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands |
| title_sort | negative impacts of plant diversity loss on carbon sequestration exacerbate over time in grasslands |
| topic | plant diversity carbon attributes experimental duration complementary effects grasslands |
| url | https://doi.org/10.1088/1748-9326/abaf88 |
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