%0 Journal Article
%T CO2 turbulent exchange in a broadleaved Korean pine forest in Changbai Mountains.<br>长白山阔叶红松林二氧化碳湍流交换特征
%A WU Jia-bing
%A GUAN De-xin
%A SUN Xiao-min
%A SHI Ting-ting
%A HAN Shi-jie
%A JIN Chang-jie
%A <br>吴家兵
%A 关德新
%A 孙晓敏
%A 施婷婷
%A 韩士杰
%A 金昌杰
%J 应用生态学报
%D 2007
%I 
%X The measurement of CO2 turbulent exchange in a broadleaved Korean pine forest in Changbai Mountains by an open-path eddy covariance system showed that with near neutral atmospheric stratification, the CO2 and vertical wind components over canopy in inertial subrange followed the expected -2/3 power law, and the dominant vertical eddy scale was about 40 m. The frequency ranges of eddy contributions to CO2 fluxes were mostly within 0.01-2.0 Hz, and the eddy translated by low frequency over canopy contributed more of CO2 fluxes. The open-path eddy covariance system could satisfy the estimation of turbulent fluxes over canopy, but the CO2 fluxes between forest and atmosphere were generally underestimated at night because the increment of non turbulent processes, suggesting that the CO2 fluxes estimated under weak turbulence needed to revise correspondingly.
%K broadleaved and Korean pine forest
%K eddy covariance method
%K CO2 flux
%K turbulent exchange<br>阔叶红松林
%K 涡度相关法
%K CO2通量
%K 湍流交换
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=C9EB832A8B94A252&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=94C357A881DFC066&sid=9822743C2D2BE348&eid=7A7A8B1000B9FF84&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=19