Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa6508 |
Warming-induced shift towards forbs and grasses and its relation to the carbon sequestration in an alpine meadow | |
Peng, Fei1,2; Xue, Xian1,2; Xu, Manhou3; You, Quangang1; Jian, Guo1; Ma, Shaoxiu1 | |
2017-04-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Global warming is often associated with changes in abiotic factors and the community composition across alpine ecosystems. However, the way that an altered community dynamics affects the ecosystem carbon (C) balance remains unclear. A warming experiment was initiated in 2010 to assess the potential impacts of warming-induced changes in the community composition and how these changes affect the C balance in mountain meadows located in the permafrost region of the Qinghai-Tibet Plateau (China). Under warming conditions, we found an increased importance value (IV) of forbs and grasses of 4.9%, in contrast to the IV of sedges, which decreased by 4.4%. For forbs and grasses, the IV showed positive exponential relationships with gross ecosystem production and ecosystem respiration, while negative correlations were found for sedges. These results indicate that a slight change in the IVs of sedges, grasses and forbs favors C sequestration. Moreover, the warming treatment significantly increased the mean height of sedges, grasses and forbs, and the net ecosystem exchange increase was positively correlated with the increase in the mean height of grasses and forbs. In summary, the warming-induced shift toward forb and grass species and the increase in plant height strengthen the C uptake capacity of alpine meadow ecosystems. |
英文关键词 | community composition importance value carbon balance alpine meadow |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398267200002 |
WOS关键词 | PLANT COMMUNITY RESPONSES ; SIMULATED CLIMATE-CHANGE ; SOIL RESPIRATION ; SPECIES RICHNESS ; GRASSLAND COMMUNITIES ; LITTER DECOMPOSITION ; BIOMASS ALLOCATION ; ECOSYSTEM ; TIBET ; TUNDRA |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/37555 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resource, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China; 2.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA; 3.Taiyuan Normal Univ, Jinzhong 030619, Peoples R China |
推荐引用方式 GB/T 7714 | Peng, Fei,Xue, Xian,Xu, Manhou,et al. Warming-induced shift towards forbs and grasses and its relation to the carbon sequestration in an alpine meadow[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(4). |
APA | Peng, Fei,Xue, Xian,Xu, Manhou,You, Quangang,Jian, Guo,&Ma, Shaoxiu.(2017).Warming-induced shift towards forbs and grasses and its relation to the carbon sequestration in an alpine meadow.ENVIRONMENTAL RESEARCH LETTERS,12(4). |
MLA | Peng, Fei,et al."Warming-induced shift towards forbs and grasses and its relation to the carbon sequestration in an alpine meadow".ENVIRONMENTAL RESEARCH LETTERS 12.4(2017). |
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