| 长白山阔叶红松林林地附近湍流特征分析 |
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| 引用本文： | 张军辉,丁之慧,等.长白山阔叶红松林林地附近湍流特征分析[J].林业研究,2002,13(2):119-122. |
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| 作者姓名： | 张军辉 丁之慧 |
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| 作者单位： | 中国科学院沈阳应用生态研究所，长白山自然保护局，中国科学院沈阳应用生态研究所，中国科学院沈阳应用生态研究所，中国科学院沈阳应用生态研究所 沈阳110016，中国)，安图县133612，吉林省，沈阳110016，中国，沈阳110016，中国，沈阳110016，中国 |
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| 基金项目： | This study was supported by the grand of the Knowledge Innovation Program of the Chinese Academy of Sciences (KZCX1-SW-01) and National Natural Science Foundation (30070158). |
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| 摘 要： | 2001年8月使用三维超声风温仪(IA-SA 485)测定并分析了中国科学院长白山森林生态系统开放站阔叶红松林样地(12828扙,4224?N,吉林省,中国)林地附近湍流特征。发现林地附近气流具有高度间歇性和不对称性,并为活跃的向上运动主导。垂直方向的湍流受到抑制,其时间尺度和长度尺度都小于水平两个分量的相应值,林地附近的气团呈偏平结构。热力作用对当地湍流产生和维持过程起到了主导作用。图4表3参15。
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| 关 键 词： | 林地 风速统计量 大气稳定度 对流状态 |
| 收稿时间： | 28 March 2002 |
Turbulence regime near the forest floor of a mixed broad leaved/Korean pine forest in Changbai Mountains |
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| Zhang Jun-hui,Ding Zhi-Hui,Han Shi-jie,Zou Chun-jing,Zhou Yu-mei.Turbulence regime near the forest floor of a mixed broad leaved/Korean pine forest in Changbai Mountains[J].Journal of Forestry Research,2002,13(2):119-122. |
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| Authors: | Zhang Jun-hui Ding Zhi-Hui Han Shi-jie Zou Chun-jing Zhou Yu-mei |
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| Institution: | (1) Institute of Applied Ecology, Chinese Academy of Sciences, 110016 Shenyang, P.R. China;(2) Administration of Changbai Mountain Natural Reserve, 133613 Antu, Jilin Province, P.R. China |
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| Abstract: | The measurement and observation for this study were carried out by using a three-dimensional (u, v, w) Sonic anemometer (IAP-SA 485), at Forest Ecosystem Opened Research Station of Changbai Mountains (128°28’E and 42°24’N,
Jilin Province, P.R. China) in August 2001. The basic characteristics of turbulence, such as turbulence intensity, atmospheric
stability, time scales, and convection state, near the forest floor were analyzed. It is concluded that the airflow near forest
floor is characterized by high intermittence and asymmetry, and the active and upward movement takes the leading position.
Near forest floor, the vertical turbulence is retained and its time scale and length scale are much less than that ofu, v components. The eddy near forest floor shows a flat structure and look like a ‘Disk’. Buoyancy plays a leading role in the
generation and maintenance of local turbulence.
Foundation Item: This study was supported by the grand of the Knowledge Innovation Program of the Chinese Academy of Sciences (KZCX1-SW-01)
and National Natural Science Foundation (30070158).
Biography: ZHANG Jun-hui (1973-), male, Ph. Doctor, assistant research fellow, Institute of Applied Ecology, Chinese Academy of Sciences
Shenyang 110016, P. R. China.
Responsible editor: Chai Ruihai |
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| Keywords: | Forest floor Velocity statistics Atmospheric stability Convection states |
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