Zhang Xin-jian, Yuan Feng-hui, Chen Ni-na, Deng Jun-li, Yu Xiao-zhou, Sheng Xue-jiao
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
Ying Yong Sheng Tai Xue Bao. 2011 Mar;22(3):607-13.
Based on the continuous measurements of an open-path eddy covariance system, this paper analyzed the characteristics of energy balance components and evapotranspiration in a broad-leaved Korean pine forest in Changbai Mountains in 2008, as well as the differences of energy balance components and evapotranspiration between growth season and dormant season. For the test forest, the year-round energy balance closure was 72%, being at a medium level, compared to the other studies in the Fluxnet community. The energy balance components had significant differences in their diurnal and seasonal variations. In growth season, turbulent energy exchange was dominated by upward latent heat flux, accounting for 66% of available energy; while in dormant season, the turbulent energy exchange was dominated by upward sensible heat flux, accounting for 63% of available energy. The accumulated annual evapotranspiration in the study site in 2008 was 484.7 mm, occupying 87% of the precipitation at the same time period (558.9 mm), which demonstrated that evapotranspiration was the main water loss item in temperate forests of northern China.
基于开路涡度相关系统的连续观测，本文分析了2008年长白山区阔叶红松林能量平衡各组分及蒸散特征，以及生长季与休眠季能量平衡各组分和蒸散的差异。对于试验林，全年能量平衡闭合率为72%，与通量网（Fluxnet）群落的其他研究相比处于中等水平。能量平衡各组分在日变化和季节变化上存在显著差异。生长季，湍流通量以向上的潜热通量为主，占可用能量的66%；而在休眠季，湍流通量以向上的感热通量为主，占可用能量的63%。2008年研究站点的年累计蒸散量为484.7 mm，占同期降水量（558.9 mm）的87%，这表明蒸散是中国北方温带森林主要的水分损失项。
