Clipping increases ecosystem carbon sequestration and its sensitivity to precipitation change in an alpine meadow
文献类型：期刊论文
| 作者 | Zhang, Fangyue2,3; Quan, Quan2,3; Ma, Fangfang2,3; Zhou, Qingping1; Niu, Shuli2,3 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2021 |
| 卷号 | 458期号:1-2页码:165-174 |
| 关键词 | Clipping Carbon flux Precipitation changes Manipulative experiment Alpine meadow |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-019-04278-5 |
| 通讯作者 | Niu, Shuli(sniu@igsnrr.ac.cn) |
| 英文摘要 | Background and aims Responses of grassland carbon (C) cycling to changes in precipitation and land use remain a major uncertainty in model prediction of future climate. It remains even far from clear on how does clipping regulate the response sensitivity of grassland C sequestration to precipitation change. Methods We conducted a manipulative field experiment with five precipitation treatments (1/12P, 1/4P, 1/2P, 3/4P, P, and 5/4P, where P is the growing season precipitation) interacting with clipping treatments in an alpine meadow to examine net ecosystem C uptake and its associated processes in response to clipping and precipitation gradients as well as their interaction. Results (1) clipping significantly increased soil temperature in 2016 and 2017, while had no effect on soil moisture; (2) clipping also stimulated the net ecosystem productivity (NEP) and gross ecosystem productivity (GEP) during the two growing seasons; (3) although there were no significantly interactive effects of clipping with precipitation changes, clipping increased the response sensitivity of C uptakes to soil moisture changes. NEP increased more with soil moisture under clipping (0.21 mu mol m(-2) s(-1) v/v(-1)) than unclipping treatments (0.11 mu mol m(-2) s(-1) v/v(-1)). This was due to the compensatory growth and the positive effect of clipping on soil temperature, which stimulated plant growth and productivity. Conclusions Our findings suggest that clipping will aggravate grassland's sensitivity to precipitation change. These findings highlight the important role of land use change in regulating ecosystem C sequestration under further climate conditions in an alpine meadow. |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000607876500013 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/136766]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Niu, Shuli |
| 作者单位 | 1.Southwest Minzu Univ, Inst Qinghai Tibetan Plateau, Chengdu 610041, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Natural Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Fangyue,Quan, Quan,Ma, Fangfang,et al. Clipping increases ecosystem carbon sequestration and its sensitivity to precipitation change in an alpine meadow[J]. PLANT AND SOIL,2021,458(1-2):165-174. |
| APA | Zhang, Fangyue,Quan, Quan,Ma, Fangfang,Zhou, Qingping,&Niu, Shuli.(2021).Clipping increases ecosystem carbon sequestration and its sensitivity to precipitation change in an alpine meadow.PLANT AND SOIL,458(1-2),165-174. |
| MLA | Zhang, Fangyue,et al."Clipping increases ecosystem carbon sequestration and its sensitivity to precipitation change in an alpine meadow".PLANT AND SOIL 458.1-2(2021):165-174. |
入库方式： OAI收割
来源：地理科学与资源研究所
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