| Warm- and cold-season grazing affect soil respiration differently in alpine grasslands | |
| Wang, H (Wang, Hao)1,2,3; Liu, HY (Liu, Huiying)1,2; Wang, YH (Wang, Yonghui)1,2; Xu, W (Xu, Wei)1,2; Liu, AR (Liu, Anrong)1,2; Ma, ZY (Ma, Zhiyuan)1,2; Mi, ZR (Mi, Zhaorong)3; Zhang, ZH (Zhang, Zhenhua)3; Wang, SP (Wang, Shiping)4,5; He, JS (He, Jin-Sheng)1,2,3; He, JS | |
| Source Publication | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 2017 | |
| Volume | 248Issue:0Pages:136-143 |
| DOI | 10.1016/j.agee.2017.07.041 |
| Abstract | As a traditional practice in grasslands, grazing significantly affects soil respiration (R-s). To improve our understanding of grassland carbon cycling, it is critical to partition the responses of soil respiration to grazing into autotrophic (R-a) and heterotrophic (R-h) respiration. In addition, it remains unclear how grazing patterns, such as warm- and cold-season grazing, influence R-s, and its components in alpine grasslands that are subject to increasing grazing pressure. Here, we conducted a six-year manipulative experiment combining with a meta analysis, to investigate the responses of 12, and its components to moderate grazing in a Tibetan alpine grassland. Grazing patterns included warm-season grazing by sheep during the growing seasons of 2008 to 2010 and simulating cold-season grazing by clipping during the non-growing seasons of 2011 to 2013. Our results showed that warm-season grazing minimally affected R-s, while cold-season grazing significantly increased R-s, by 13.1%. This result was supported by a meta-analysis at seven grassland sites across the Tibetan Plateau. Further, we found that warm-season grazing did not affect R-a or R-h, whereas cold-season grazing enhanced Ra (23.2%) more than R-h (4.9%). Cold-season grazing affected 12, and R-a differently depending on interannual variation in climate conditions. A significant increase of 17.1% and 26.3%, respectively, was recorded in dry and cold years, but no change was recorded in wet and warm years. This study highlights the differential responses of R, components to grazing, and suggests that different grazing patterns should be considered when evaluating future carbon cycles in grazing ecosystems on the Tibetan Plateau. |
| Subject Area | 普通生物学 |
| WOS ID | WOS:000411539700015 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | Tibetan Plateau Temperature Sensitivity Carbon Nitrogen Meadow Impacts Metaanalysis Responses Ecosystem Prairie |
| WOS Research Area | Agriculture; Environmental Sciences & Ecology |
| WOS Subject | Agriculture, Multidisciplinary; Ecology; Environmental Sciences |
| Cooperation Status | 国内 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/7969 |
| Collection | 图书馆 |
| Corresponding Author | He, JS |
| Affiliation | 1.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China. 2.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China. 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China. 4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100085, Peoples R China. 5.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China. |
| Recommended Citation GB/T 7714 | Wang, H ,Liu, HY ,Wang, YH ,et al. Warm- and cold-season grazing affect soil respiration differently in alpine grasslands[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2017,248(0):136-143. |
| APA | Wang, H .,Liu, HY .,Wang, YH .,Xu, W .,Liu, AR .,...&He, JS.(2017).Warm- and cold-season grazing affect soil respiration differently in alpine grasslands.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,248(0),136-143. |
| MLA | Wang, H ,et al."Warm- and cold-season grazing affect soil respiration differently in alpine grasslands".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 248.0(2017):136-143. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| V.248 136-143 2017.p（1036KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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