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对西双版纳望天树林干热季不同林窗间的小气候差异进行了观测 ,对比分析了 3个不同大小林窗 ( 2 0 0 m2、1 4 0 m2、60 m2 )内的温度、相对湿度和光强分布状况及温度垂直分布形式。结果表明 ,各林窗内温度、湿度日变化均比林内大 ,其中以大林窗最为明显 ,且最小林窗内的温湿度变化最为缓慢 ;林窗内的光照强度为林内的 1 0倍以上 ;大林窗中央地表温度及冠层 0 .5m处气温、相对湿度日较差比最小林窗分别高 1 5.8℃、3.9℃、1 4 % ,但夜间各林窗内的温湿度差别不明显 ;昼间 ,大林窗 (形成最晚 )内具有两个加热层 (幼苗冠层、地表 ) ,小林窗 (形成较早 )仅有一个加热层 (幼树冠层 ) ,且前者的加热强度大于后者。
The microclimate differences between different canopy gaps in Wangtianbanna dry-hot season in Xishuangbanna were observed. The temperature, relative humidity and light in three different size gaps (2000 m2, 14 0 m2, 60 m2) Strong distribution and vertical distribution of temperature. The results showed that the diurnal variation of temperature and humidity in each grove was greater than that in the forest, and the most obvious was the dale grove. The temperature and humidity in the smallest groin was the slowest. The light intensity in the grove was more than 10 times of that in the forest. The temperature at the central Dalin window and the relative humidity at 0 .5 m at the canopy were 1 5.8 ℃, 3.9 ℃ and 14% higher than the minimum gap, respectively. However, there was no significant difference between the temperature and humidity in each window at night. There are two heating layers (seedling canopy, surface) in the largest dalian window (the latest formation), and only one heating layer (sapling layer) in the Kobayashi window (formed earlier), and the former has stronger heating intensity than the latter.