Seasonal variation in carbon exchange and its ecological analysis over leymus chinensis steppe in inner mongolia
文献类型：期刊论文
| 作者 | Hao Yanbin; Wang Yanfen; Sun Xiaomin; Huang Xiangzhong; Cui Xiaoyong; Niu Haishan; Zhang Yahong; Yu Guirui |
| 刊名 | Science in china series d-earth sciences
 |
| 出版日期 | 2006-11-01 |
| 卷号 | 49页码:186-195 |
| 关键词 | Leymus chinensis Co2 flux Photosynthetic active radiation Light saturation phenomena Eddy covariance technique |
| ISSN号 | 1006-9313 |
| DOI | 10.1007/s11430-006-8186-5 |
| 通讯作者 | Wang yanfen(yfwang@gucas.ac.cn) |
| 英文摘要 | Eddy covariance technique was used to measure carbon flux during two growing seasons in 2003 and 2004 over typical steppe in the inner mongolia plateau, china. the results showed that there were two different co2 flux diurnal patterns at the grassland ecosystem. one had a dual peak in diurnal course of co2 fluxes with a depression of co2 flux after noon, and the other had a single peak. in 2003, the maximum diurnal uptake and emitting value of co2 were -7.4 and 5.4 g(.)m(-2.)d(-1) respectively and both occurred in july. while in 2004, the maximum diurnal uptake and release of co2 were -12.8 and 5.8 g(.)m(-2.)d(-1) and occurred both in august. the grassland fixed 294.66 and 467.46 g co(2)(.)m(-2) in 2003 and 2004, and released 333.14 and 437.17 g co(2)(.)m(-2) in 2003 and 2004, respectively from may to september. water availability and photosynthetic active radiation (par) are two important factors of controlling co2 flux. consecutive precipitation can cause reduction in the ability of ecosystem carbon exchange. under favorable soil water conditions, daytime co2 flux is dependent on par. co2 flux, under soil water stress conditions, is obviously less than those under favorable soil water conditions, and there is a light saturation phenomena at par=1200 mu mol(.)m(-2.)s(-1). soil respiration was temperature dependent when there was no soil water stress; otherwise, this response became accumulatively decoupled from soil temperature. |
| WOS关键词 | NATIVE TALLGRASS PRAIRIE ; NET ECOSYSTEM EXCHANGE ; DIOXIDE EXCHANGE ; WATER-VAPOR ; TEMPERATE GRASSLAND ; FLUXES ; EVAPOTRANSPIRATION ; VARIABILITY ; ATMOSPHERE ; NORTHERN |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000242721500016 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379645 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang Yanfen |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Lab Quantitat Vegetat Ecol, Beijing 100093, Peoples R China 2.Grad Univ, Chinese Acad Sci, Dept Biol, Beijing 100049, Peoples R China 3.Ningxia Univ, Yinchuan 750001, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao Yanbin,Wang Yanfen,Sun Xiaomin,et al. Seasonal variation in carbon exchange and its ecological analysis over leymus chinensis steppe in inner mongolia[J]. Science in china series d-earth sciences,2006,49:186-195. |
| APA | Hao Yanbin.,Wang Yanfen.,Sun Xiaomin.,Huang Xiangzhong.,Cui Xiaoyong.,...&Yu Guirui.(2006).Seasonal variation in carbon exchange and its ecological analysis over leymus chinensis steppe in inner mongolia.Science in china series d-earth sciences,49,186-195. |
| MLA | Hao Yanbin,et al."Seasonal variation in carbon exchange and its ecological analysis over leymus chinensis steppe in inner mongolia".Science in china series d-earth sciences 49(2006):186-195. |
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来源：中国科学院大学
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