Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15786 |
Ambient climate determines the directional trend of community stability under warming and grazing | |
Peipei Liu; Wangwang Lv; Jianping Sun; Caiyun Luo; Zhenhua Zhang; Xiaoxue Zhu; Xingwu Lin; Jichuang Duan; Guangping Xu; Xiaofeng Chang; Yigang Hu; Qiaoyan Lin; Burenbayin Xu; Xiaowei Guo; Lili Jiang; Yanfen Wang; Shilong Piao; Jinzhi Wang; Haishan Niu; Liyong Shen; Yang Zhou; Bowen Li; Lirong Zhang; Huan Hong; Qi Wang; A. Wang; Suren Zhang; Lu Xia; Tsechoe Dorji; Yingnian Li; Guangming Cao; Josep Peñ; uelas; Xinquan Zhao; Shiping Wang | |
2021-07-29 | |
发表期刊 | Global Change Biology |
出版年 | 2021 |
英文摘要 | Changes in ecological processes over time in ambient treatments are often larger than the responses to manipulative treatments in climate change experiments. However, the impacts of human-driven environmental changes on the stability of natural grasslands have been typically assessed by comparing differences between manipulative plots and reference plots. Little is known about whether or how ambient climate regulates the effects of manipulative treatments and their underlying mechanisms. We collected two datasets, one a 36-year long-term observational dataset from 1983 to 2018, and the other a 10-year manipulative asymmetric warming and grazing experiment using infrared heaters with moderate grazing from 2006 to 2015 in an alpine meadow on the Tibetan Plateau. The 36-year observational dataset shows that there was a nonlinear response of community stability to ambient temperature with a positive relationship between them due to an increase in ambient temperature in the first 25 years and then a decrease in ambient temperature thereafter. Warming and grazing decreased community stability with experiment duration through an increase in legume cover and a decrease in species asynchrony, which was due to the decreasing background temperature through time during the 10-year experiment period. Moreover, the temperature sensitivity of community stability was higher under the ambient treatment than under the manipulative treatments. Therefore, our results suggested that ambient climate may control the directional trend of community stability while manipulative treatments may determine the temperature sensitivity of the response of community stability to climate relative to the ambient treatment. Our study emphasizes the importance of the context dependency of the response of community stability to human-driven environmental changes. |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/335309 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Peipei Liu,Wangwang Lv,Jianping Sun,et al. Ambient climate determines the directional trend of community stability under warming and grazing[J]. Global Change Biology,2021. |
APA | Peipei Liu.,Wangwang Lv.,Jianping Sun.,Caiyun Luo.,Zhenhua Zhang.,...&Shiping Wang.(2021).Ambient climate determines the directional trend of community stability under warming and grazing.Global Change Biology. |
MLA | Peipei Liu,et al."Ambient climate determines the directional trend of community stability under warming and grazing".Global Change Biology (2021). |
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