Pressure correction to the long-term measurement of carbon dioxide flux
文献类型：期刊论文
| 作者 | Zhang, Junhui2; Lee, Xuhui1; Song, Guozheng2; Han, Shijie2 |
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2011-01-15 |
| 卷号 | 151期号:1页码:70-77 |
| 关键词 | Pressure Term Eddy-covariance Long Term Co2 Budget Canopy Density |
| ISSN号 | 0168-1923 |
| DOI | 10.1016/j.agrformet.2010.09.004 |
| 英文摘要 | Fluctuations in atmospheric CO2 density can arise from static pressure fluctuations but their effect on the long-term eddy covariance (EC) CO2 flux measurement is poorly known In this paper we report the results of a 1-year direct measurement of the static pressure fluctuations and the velocity-pressure covariance over a mixed forest in Northeast China The results show that the pressure-vertical velocity covariance was primarily controlled by friction velocity and air stability Without the pressure correction the open-path EC measurement of the nighttime ecosystem respiration was biased low and that of the daytime photosynthetic CO2 uptake was biased high Over the 1-year measurement period the cumulative pressure correction was 40 gCm(-2) which was about 20% of the annual net ecosystem production of this forest Using the friction velocity data found in the literature we estimated the magnitudes of the pressure correction for the major ecosystem types in the long-term global EC network (FluxNet) (C) 2010 Elsevier B V All rights reserved |
| WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000285325400007 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/121807]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Zhang, Junhui |
| 作者单位 | 1.Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA 2.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Junhui,Lee, Xuhui,Song, Guozheng,et al. Pressure correction to the long-term measurement of carbon dioxide flux[J]. AGRICULTURAL AND FOREST METEOROLOGY,2011,151(1):70-77. |
| APA | Zhang, Junhui,Lee, Xuhui,Song, Guozheng,&Han, Shijie.(2011).Pressure correction to the long-term measurement of carbon dioxide flux.AGRICULTURAL AND FOREST METEOROLOGY,151(1),70-77. |
| MLA | Zhang, Junhui,et al."Pressure correction to the long-term measurement of carbon dioxide flux".AGRICULTURAL AND FOREST METEOROLOGY 151.1(2011):70-77. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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