Grazing increased alpine grassland soil respiration rates on the Tibetan Plateau
IntroductionGrazing activities were intensive in alpine grasslands and may alter the soil respiration rates across the Tibetan Plateau. However, grazed alpine grassland soil respiration rates and their underlying driving mechanisms remain unclear across the Tibetan Plateau.MethodsIn this study, we s...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Soil Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fsoil.2024.1429371/full |
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| author | Yahui Mao Yahui Mao Yangong Du Yangong Du Kelong Chen Kelong Chen |
| author_facet | Yahui Mao Yahui Mao Yangong Du Yangong Du Kelong Chen Kelong Chen |
| author_sort | Yahui Mao |
| collection | DOAJ |
| description | IntroductionGrazing activities were intensive in alpine grasslands and may alter the soil respiration rates across the Tibetan Plateau. However, grazed alpine grassland soil respiration rates and their underlying driving mechanisms remain unclear across the Tibetan Plateau.MethodsIn this study, we synthesized data from 38 groups to clarify the response of CO2 emission rates to different grazing intensities.ResultsThe effect size was 0.039 ± 0.051 of grazed activity on the ecosystem respiration rates, indicating that grazing increased respiration rates by 3.99%. Furthermore, effect sizes were −0.146 ± 0.209 and 0.076 ± 0.046 in alpine steppes and alpine meadows, respectively, indicating a 13.58% reduction and a 7.90% increase. The effect sizes were 0.051 ± 0.112, 0.029 ± 0.075, and 0.055 ± 0.089 in light, moderate, and high grazing intensity, respectively. Moderate grazing mitigated grassland CO2 emission rates compared with light and high grazing. Both air temperature and soil organic carbon significantly increased grassland ecosystem respiration rate, explaining 38.47% and 22.57% of variance heterogeneity.DiscussionIn addition, both future global warming and increasing soil organic carbon would increase alpine grassland CO2 emission rates on the Tibetan Plateau. |
| format | Article |
| id | doaj-art-8e171c88ed984db58139d238cc5b2133 |
| institution | Kabale University |
| issn | 2673-8619 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Soil Science |
| spelling | doaj-art-8e171c88ed984db58139d238cc5b21332025-01-23T06:56:08ZengFrontiers Media S.A.Frontiers in Soil Science2673-86192025-01-01410.3389/fsoil.2024.14293711429371Grazing increased alpine grassland soil respiration rates on the Tibetan PlateauYahui Mao0Yahui Mao1Yangong Du2Yangong Du3Kelong Chen4Kelong Chen5College of Geographical Science, Qinghai Normal University, Xining, ChinaQinghai Provincial Key Laboratory of Physical Geography and Environmental Processes, Qinghai Normal University, Xining, ChinaCollege of Geographical Science, Qinghai Normal University, Xining, ChinaNorthwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, ChinaCollege of Geographical Science, Qinghai Normal University, Xining, ChinaQinghai Provincial Key Laboratory of Physical Geography and Environmental Processes, Qinghai Normal University, Xining, ChinaIntroductionGrazing activities were intensive in alpine grasslands and may alter the soil respiration rates across the Tibetan Plateau. However, grazed alpine grassland soil respiration rates and their underlying driving mechanisms remain unclear across the Tibetan Plateau.MethodsIn this study, we synthesized data from 38 groups to clarify the response of CO2 emission rates to different grazing intensities.ResultsThe effect size was 0.039 ± 0.051 of grazed activity on the ecosystem respiration rates, indicating that grazing increased respiration rates by 3.99%. Furthermore, effect sizes were −0.146 ± 0.209 and 0.076 ± 0.046 in alpine steppes and alpine meadows, respectively, indicating a 13.58% reduction and a 7.90% increase. The effect sizes were 0.051 ± 0.112, 0.029 ± 0.075, and 0.055 ± 0.089 in light, moderate, and high grazing intensity, respectively. Moderate grazing mitigated grassland CO2 emission rates compared with light and high grazing. Both air temperature and soil organic carbon significantly increased grassland ecosystem respiration rate, explaining 38.47% and 22.57% of variance heterogeneity.DiscussionIn addition, both future global warming and increasing soil organic carbon would increase alpine grassland CO2 emission rates on the Tibetan Plateau.https://www.frontiersin.org/articles/10.3389/fsoil.2024.1429371/fullgrazing intensitysoil respiration ratesmeta-analysisthe Tibetan Plateauair temperature |
| spellingShingle | Yahui Mao Yahui Mao Yangong Du Yangong Du Kelong Chen Kelong Chen Grazing increased alpine grassland soil respiration rates on the Tibetan Plateau Frontiers in Soil Science grazing intensity soil respiration rates meta-analysis the Tibetan Plateau air temperature |
| title | Grazing increased alpine grassland soil respiration rates on the Tibetan Plateau |
| title_full | Grazing increased alpine grassland soil respiration rates on the Tibetan Plateau |
| title_fullStr | Grazing increased alpine grassland soil respiration rates on the Tibetan Plateau |
| title_full_unstemmed | Grazing increased alpine grassland soil respiration rates on the Tibetan Plateau |
| title_short | Grazing increased alpine grassland soil respiration rates on the Tibetan Plateau |
| title_sort | grazing increased alpine grassland soil respiration rates on the tibetan plateau |
| topic | grazing intensity soil respiration rates meta-analysis the Tibetan Plateau air temperature |
| url | https://www.frontiersin.org/articles/10.3389/fsoil.2024.1429371/full |
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