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利用热带次生林林窗区域树干和树冠下的表面温度观测资料，探讨了昼间林窗边缘和林内的树干表面温度时空分布规律，以及林窗边缘与林内树干的表面温度差异。指出在林窗区域存在４ 个热力作用面（ 林冠面、林内地面、林窗林缘壁面和林窗地面） ，受太阳直接照射的东侧和北侧林壁是林窗最主要的热力作用面；４ 个热力作用面的热力特征和相互作用制约了林窗的热力变化。其结果可为进一步研究林窗小气候形成机制提供研究基础，并为研究林窗的演替、更新以及对生物多样性影响提供科学依据。
The temporal and spatial distribution of tree trunk surface temperature and the surface temperature difference between the edge of forest gap and the trunk of forest were discussed by using the surface temperature observation data under the trunk and canopy of the forest gap in the tropical secondary forest. It is pointed out that there are four heat acting surfaces in canopy area (forest canopy, forest floor, forest forest edge and forest floor). The eastern and northern forests are the main heat effect surface The thermodynamic characteristics and interactions of the four thermodynamic surfaces restrict the thermal variation of the gap. The results provide the basis for further study on the mechanism of microclimate formation in Gaps and provide a scientific basis for studying the succession and regeneration of Gaps and the impact on biodiversity.