Mowing mitigates the negative impacts of long-term warming on community composition and niche characteristics of alpine meadow on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Ma, Li; Zhang, Zhonghua ; Su, Hongye; Qin, Ruimin; Wei, Jingjing; Li, Honglin; Shi, Zhengchen; Li, Shan; Hu, Xue; Adi, Haze
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| 刊名 | GLOBAL ECOLOGY AND CONSERVATION
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| 出版日期 | 2024 |
| 卷号 | 55 |
| 英文摘要 | Climate warming and human disturbance are supposed to have significantly impacted the alpine grasslands. However, it is still unclear how human activity affects the community composition and niche characteristics in response to warming. We conducted a two-factorial experiment in an alpine meadow, and set up four treatments: warming, mowing, warming with mowing, and control. Based on the investigation of community composition and niche characteristics, we evaluated the impacts of soil carbon, nitrogen, and phosphorus on species niche overlap. The results showed that mowing significantly increased species richness of Grass, Sedge, Forbs and the importance value of Sedge compared to warming (P < 0.05). The niche breadth of species (>50 %) was reduced by warming, but increased under mowing. The niche overlap mainly occurred between Grass and Forbs in warming, while it was evenly distributed among species after mowing, which alleviated the negative effects of warming on interspecific competitiveness. Warming increased the number of species pairs with a niche overlap value >0.9 by 24.15 %, while warming with mowing decreased it by 2.7 %. The number of species pairs with niche overlap was significantly correlated with soil total nitrogen and soil available nitrogen (P < 0.05). In particular, the species pairs with highly competitive showed a greater dependency on soil nitrogen. Our work highlights that moderate utilization and soil nitrogen are two crucial factors influencing the response of community structure in alpine meadows to future climate change. The study provides an important reference for predicting and addressing the impact of global climate change on adaptive management and grassland protection. |
| 源URL | [http://210.75.249.4/handle/363003/61916]  |
| 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,Zhang, Zhonghua,Su, Hongye,et al. Mowing mitigates the negative impacts of long-term warming on community composition and niche characteristics of alpine meadow on the Tibetan Plateau[J]. GLOBAL ECOLOGY AND CONSERVATION,2024,55. |
| APA | Ma, Li.,Zhang, Zhonghua.,Su, Hongye.,Qin, Ruimin.,Wei, Jingjing.,...&Zhou, Huakun.(2024).Mowing mitigates the negative impacts of long-term warming on community composition and niche characteristics of alpine meadow on the Tibetan Plateau.GLOBAL ECOLOGY AND CONSERVATION,55. |
| MLA | Ma, Li,et al."Mowing mitigates the negative impacts of long-term warming on community composition and niche characteristics of alpine meadow on the Tibetan Plateau".GLOBAL ECOLOGY AND CONSERVATION 55(2024). |
入库方式： OAI收割
来源：西北高原生物研究所
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