Net primary productivity and its partitioning in response to precipitation gradient in an alpine meadow
文献类型：期刊论文
| 作者 | Zhang, Fangyue1; Quan, Quan1; Song, Bing2; Sun, Jian; Chen, Youjun3; Zhou, Qingping3; Niu, Shuli1 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2017 |
| 卷号 | 7 |
| ISSN号 | 2045-2322 |
| 文献子类 | Article |
| 英文摘要 | The dynamics of net primary productivity (NPP) and its partitioning to the aboveground versus belowground are of fundamental importance to understand carbon cycling and its feedback to climate change. However, the responses of NPP and its partitioning to precipitation gradient are poorly understood. We conducted a manipulative field experiment with six precipitation treatments (1/12 P, 1/4 P, 1/2 P, 3/4 P, P, and 5/4 P, P is annual precipitation) in an alpine meadow to examine aboveground and belowground NPP (ANPP and BNPP) in response to precipitation gradient in 2015 and 2016. We found that changes in precipitation had no significant impact on ANPP or belowground biomass in 2015. Compared with control, only the extremely drought treatment (1/12 P) significantly reduced ANPP by 37.68% and increased BNPP at the depth of 20-40 cm by 80.59% in 2016. Across the gradient, ANPP showed a nonlinear response to precipitation amount in 2016. Neither BNPP nor NPP had significant relationship with precipitation changes. The variance in ANPP were mostly due to forbs production, which was ultimately caused by altering soil water content and soil inorganic nitrogen concentration. The nonlinear precipitation-ANPP relationship indicates that future precipitation changes especially extreme drought will dramatically decrease ANPP and push this ecosystem beyond threshold. |
| 学科主题 | Evolutionary Biology |
| 出版地 | BERLIN |
| WOS关键词 | BELOW-GROUND BIOMASS ; ROOT BIOMASS ; GRASSLAND ECOSYSTEM ; INTERANNUAL VARIABILITY ; DOUBLED PRECIPITATION ; RAINFALL MANIPULATION ; ABOVEGROUND BIOMASS ; NITROGEN DYNAMICS ; TALLGRASS PRAIRIE ; SOIL RESPIRATION |
| 语种 | 英语 |
| WOS记录号 | WOS:000400944900009 |
| 出版者 | NATURE PORTFOLIO |
| 资助机构 | National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31470528, 31625006] ; Ministry of Science and Technology of ChinaMinistry of Science and Technology, China [2016YFC0501803] ; Thousand Youth Talents Plan program |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22308]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Southwest Univ Nationalities, Inst Qinghai Tibetan Plateau, Chengdu 610041, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Fangyue,Quan, Quan,Song, Bing,et al. Net primary productivity and its partitioning in response to precipitation gradient in an alpine meadow[J]. SCIENTIFIC REPORTS,2017,7. |
| APA | Zhang, Fangyue.,Quan, Quan.,Song, Bing.,Sun, Jian.,Chen, Youjun.,...&Niu, Shuli.(2017).Net primary productivity and its partitioning in response to precipitation gradient in an alpine meadow.SCIENTIFIC REPORTS,7. |
| MLA | Zhang, Fangyue,et al."Net primary productivity and its partitioning in response to precipitation gradient in an alpine meadow".SCIENTIFIC REPORTS 7(2017). |
入库方式： OAI收割
来源：植物研究所
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