Strong temperature dependence and no moss photosynthesis in winter CO2 flux for a Kobresia meadow on the Qinghai-Tibetan plateau
文献类型：期刊论文
| 作者 | Kato, T; Hirota, M; Tang, YH; Cui, XY; Li, YN; Zhao, XQ; Oikawa, T |
| 刊名 | soil biology & biochemistry
 |
| 出版日期 | 2005-10-01 |
| 卷号 | 37期号:10页码:1966-1969 |
| 关键词 | CO2 gas diffusion freeze-thaw cycles microbial respiration moss photosynthesis spatial variability |
| 合作状况 | 其它 |
| 中文摘要 | we examined the co2 exchange of a kobresia meadow ecosystem on the qinghai-tibetan plateau using a chamber system. co2 efflux from the ecosystem was strongly dependence on soil surface temperature. the coz efflux-temperature relationship was identical under both light and dark conditions, indicating that no photosynthesis could be detected under light conditions during the measurement period. the temperature sensitivity (q(10)) of the coz efflux showed a marked transition around -1.0 degrees c; q(10) was 2.14 at soil surface temperatures above and equal to -1.0 degrees c but was 15.3 at temperatures below -1.0 degrees c. our findings suggest that soil surface temperature was the major factor controlling winter coz flux for the alpine meadow ecosystem and that freeze-thaw cycles at the soil surface layer play an important role in the temperature dependence of winter co2 flux. (c) 2005 elsevier ltd. all rights reserved. |
| 英文摘要 | we examined the co2 exchange of a kobresia meadow ecosystem on the qinghai-tibetan plateau using a chamber system. co2 efflux from the ecosystem was strongly dependence on soil surface temperature. the coz efflux-temperature relationship was identical under both light and dark conditions, indicating that no photosynthesis could be detected under light conditions during the measurement period. the temperature sensitivity (q(10)) of the coz efflux showed a marked transition around -1.0 degrees c; q(10) was 2.14 at soil surface temperatures above and equal to -1.0 degrees c but was 15.3 at temperatures below -1.0 degrees c. our findings suggest that soil surface temperature was the major factor controlling winter coz flux for the alpine meadow ecosystem and that freeze-thaw cycles at the soil surface layer play an important role in the temperature dependence of winter co2 flux. (c) 2005 elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 学科主题 | 生物科学 |
| 类目[WOS] | soil science |
| 研究领域[WOS] | agriculture |
| 关键词[WOS] | ecosystem ; respiration ; soil |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000231522500026 |
| 公开日期 | 2009-12-09 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/1362]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Japan Agcy Marine Earth Sci & Technol, Frontier Res Ctr Global Change, Ecosyst Change Res Program, Yokohama, Kanagawa 236001, Japan 2.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan 3.Chinese Acad Sci, Grad Sch, Yuanquanlu 100091, Peoples R China 4.Chinese Acad Sci, NW Plateau Inst Biol, Xining 810001, Qinghai, Peoples R China 5.Univ Tsukuba, Inst Biol Sci, Tsukuba, Ibaraki 3058572, Japan |
| 推荐引用方式 GB/T 7714 | Kato, T,Hirota, M,Tang, YH,et al. Strong temperature dependence and no moss photosynthesis in winter CO2 flux for a Kobresia meadow on the Qinghai-Tibetan plateau[J]. soil biology & biochemistry,2005,37(10):1966-1969. |
| APA | Kato, T.,Hirota, M.,Tang, YH.,Cui, XY.,Li, YN.,...&Oikawa, T.(2005).Strong temperature dependence and no moss photosynthesis in winter CO2 flux for a Kobresia meadow on the Qinghai-Tibetan plateau.soil biology & biochemistry,37(10),1966-1969. |
| MLA | Kato, T,et al."Strong temperature dependence and no moss photosynthesis in winter CO2 flux for a Kobresia meadow on the Qinghai-Tibetan plateau".soil biology & biochemistry 37.10(2005):1966-1969. |
入库方式： OAI收割
来源：西北高原生物研究所
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