Long-term warming and mowing shift the dominant control of soil respiration in an alpine meadow of the Tibet Plateau
文献类型：期刊论文
| 作者 | Ma, Li; Shi, Huifang; Su, Hongye; Hu, Xue; Li, Shan; Zhang, Qiang; Wei, Jingjing; Xu, Sheng; Zhang, Zhonghua; Shi, Zhengchen |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2025 |
| 关键词 | Warming Mowing Soil respiration Soil temperature and moisture Community structure Soil nutrient |
| 英文摘要 | Background Alpine grasslands on the Tibetan Plateau constitute a pivotal component of the global carbon cycle. As the dominant CO2 flux pathway, soil respiration demonstrates marked sensitivity to both climate warming and anthropogenic disturbances. Methods Based on a long-term experiment combining warming (open-top chambers) and mowing (annual clipping), we systematically monitored soil respiration rates, concurrently with soil temperature and moisture, plant community traits, and soil nutrient, to elucidate the responses patterns of alpine meadow soil respiration to warming and mowing and identify their dominant drivers. Results Soil respiration was significantly affected by the main effects of warming and mowing (P < 0.05) and was strongly correlated with soil temperature and moisture. Q(1)(0) decreased by 5.04% in M*NW to 8.98% in NM*W, while the fitting strength (R-2) between soil respiration and soil moisture increased from 73% (NM*W) to 146% (M*W). Soil respiration was significantly correlated with the dominance of Grass and showed quadratic relationships with ammonium nitrogen, available phosphorus, and microbial biomass carbon (P < 0.05). Structural equation modelling indicated strong positive associations between soil nutrients and microbial biomass, and revealed that soil moisture had a significant positive effect on soil respiration (P < 0.001). Conclusion This study demonstrates that the effects of long-term warming and mowing on soil respiration are largely independent, indirectly influencing soil respiration by altering the dominance of plant functional groups, while soil moisture emerges as the primary regulator, surpassing temperature. Moreover, nutrient-microbe interactions constitute the key pathways through which warming and mowing affect soil respiration. |
| 源URL | [http://210.75.249.4/handle/363003/62320]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Ma, Li,Shi, Huifang,Su, Hongye,et al. Long-term warming and mowing shift the dominant control of soil respiration in an alpine meadow of the Tibet Plateau[J]. PLANT AND SOIL,2025. |
| APA | Ma, Li.,Shi, Huifang.,Su, Hongye.,Hu, Xue.,Li, Shan.,...&Zhou, Huakun.(2025).Long-term warming and mowing shift the dominant control of soil respiration in an alpine meadow of the Tibet Plateau.PLANT AND SOIL. |
| MLA | Ma, Li,et al."Long-term warming and mowing shift the dominant control of soil respiration in an alpine meadow of the Tibet Plateau".PLANT AND SOIL (2025). |
入库方式： OAI收割
来源：西北高原生物研究所
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