Light-intensity grazing improves alpine meadow productivity and adaption to climate change on the Tibetan Plateau
文献类型：SCI/SSCI论文
| 作者 | Zhang T.; Zhang, Y. J.; Xu, M. J.; Zhu, J. T.; Wimberly, M. C.; Yu, G. R.; Niu, S. L.; Xi, Y.; Zhang, X. Z.; Wang, J. S. |
| 发表日期 | 2015 |
| 关键词 | net ecosystem exchange carbon-dioxide exchange mixed-grass prairie co2 exchange water-vapor land-use interannual variability spatial variability tallgrass prairie soil respiration |
| 英文摘要 | To explore grazing effects on carbon fluxes in alpine meadow ecosystems, we used a paired eddy-covariance (EC) system to measure carbon fluxes in adjacent fenced (FM) and grazed (GM) meadows on the Tibetan plateau. Gross primary productivity (GPP) and ecosystem respiration (Re) were greater at GM than FM for the first two years of fencing. In the third year, the productivity at FM increased to a level similar to the GM site. The higher productivity at GM was mainly caused by its higher photosynthetic capacity. Grazing exclusion did not increase carbon sequestration capacity for this alpine grassland system. The higher optimal photosynthetic temperature and the weakened ecosystem response to climatic factors at GM may help to facilitate the adaption of alpine meadow ecosystems to changing climate. |
| 出处 | Scientific Reports |
| 卷 | 5 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 2045-2322 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38529]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Zhang T.,Zhang, Y. J.,Xu, M. J.,et al. Light-intensity grazing improves alpine meadow productivity and adaption to climate change on the Tibetan Plateau. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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