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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >Micrometeorological observations above a Japanese red pine forest within the growing season
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Micrometeorological observations above a Japanese red pine forest within the growing season

机译：生长季节内日本赤松林上空的微气象观测

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Knowledge of vegetation-atmosphere interactions has great importance in ecological research, and to recognize these effective interactions, the collection and interpretation of micrometeorological data are essential. The main goal of this study was to understand the trends of evapotranspiration (ET) and other micrometeorological parameters within the growing season above a Japanese red pine forest in Japan. To measure ET, the Bowen ratio-energy balance approach was employed. These measurements were used with the Penman-Monteith reference evapotranspiration (ET0) in order to create crop coefficients (Kc) by the ratio of ET:ET0. Mean daily ET on the dry and rainy days was found to be 3.22 and 2.11 mm day-1, respectively, which was statistically different. Kc values were inconsistent from day to day and ranged between 0.37 and 1.24, and, in general, were less than unity (average: 0.84, standard error: 0.01). Significant differences in Kc were found between rainy days (wet canopy) and dry days (dry canopy). No remarkable changes were observed between rainy and dry days in the average contribution of latent heat flux, ground heat flux, and sensible heat flux to the energy budget. The data indicated that the Penman-Monteith equation may be useful for estimating the ET from the red pine forest within the growing season, and, in particular, when the rainy and dry days were separated. Key words: Bowen ratio-energy balance method, crop coefficient, evapotranspiration, red pine forest
机译：植被-大气相互作用的知识在生态研究中具有重要意义，并且要认识到这些有效的相互作用，微气象数据的收集和解释至关重要。这项研究的主要目的是了解日本赤松森林上方生长期的蒸散量（ET）和其他微气象参数的趋势。为了测量ET，采用了Bowen比率-能量平衡方法。这些测量值与Penman-Monteith参考蒸散量（ET0）一起使用，以便通过ET：ET0的比率创建作物系数（Kc）。发现在干旱和雨天的平均每日ET分别为第1天的3.22和2.11 mm，这在统计学上是不同的。每天的Kc值不一致，范围在0.37至1.24之间，并且通常小于1（平均值：0.84，标准误：0.01）。在雨天（湿冠层）和干燥天（干冠层）之间发现了Kc的显着差异。在阴雨天和干旱天之间，潜热通量，地热通量和显热通量对能量收支的平均贡献没有观察到显着变化。数据表明，Penman-Monteith方程可能有助于估算生长季节内，特别是当雨天和干旱天分开时红松林的ET。关键词：鲍恩比-能量平衡法，作物系数，蒸散量，赤松林

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