CO2 fluxes of alpine shrubland ecosystem on the north-eastern Tibetan plateau
文献类型：SCI/SSCI论文
| 作者 | Li Y.; Zhao X.; Li Y. |
| 发表日期 | 2005 |
| 关键词 | ecosystem respiration gross ecosystem production (GEP) net ecosystem production (NEP) photosynthesis temperature meadow ecosystem exchange atmosphere |
| 英文摘要 | We measured ecosystem CO2 fluxes for an alpine shrubland on the north-eastern Tibetan Plateau, Qinghai, China. The study is to understand (1) the seasonal variation of CO2 flux and (2) how environmental factors affect the seasonality of CO2 exchange in the alpine ecosystem. Daytime ecosystem respiration was extrapolated from the relationship between temperature and nighttime CO2 fluxes under high turbulent conditions. Seasonal patterns of gross ecosystem production, ecosystem respiration and net ecosystem CO2 exchange followed highly the seasonal change of aboveground biomass in the alpine shrubland. The net ecosystem CO2 exchange was mainly controlled by the variation of photosynthetic photon flux density, while the ecosystem respiration was closely correlated to the soil temperature at 5-cm depth. Integrated values of gross ecosystem production, ecosystem respiration and net ecosystem CO2 exchange for the period from November 1, 2002 to October 31 2003 were estimated to be 1418, 1155 and 222 g CO2 m(-2) yr(-1), respectively. |
| 出处 | Phyton-Annales Rei Botanicae |
| 卷 | 45 |
| 期 | 4 |
| 页 | 371-376 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0079-2047 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22282]  |
| 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 | Li Y.,Zhao X.,Li Y.. CO2 fluxes of alpine shrubland ecosystem on the north-eastern Tibetan plateau. 2005. |
入库方式： OAI收割
来源：地理科学与资源研究所
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