云南哀牢山常绿阔叶林林缘不同热力作用面热力特征

Thermodynamic characteristics on different thermal active surfaces near edge of ever-green broad-leaved forest of Ailao Mountain

利用云南哀牢山原生的亚热带常绿阔叶林西南向边缘的表温观测资料 ,探讨了原生常绿阔叶林林缘区域不同热力作用面表温的水平、垂直分布特征及其差异。指出哀牢山原生的亚热带常绿阔叶林林缘与热带片断化季雨林林缘相同 ,其林缘壁面的热力效应同样是不可忽视的 ,在林缘区域构成了除了公认的林外地表面 ,林冠面和林内地表面 3个热力作用面之外的一个新的第 4热力作用面。对其进行深入研究 。

Based on the data of surface temperature on Southwest slope edge of ever green broad leaved forest in Ailao Mountain, the characteristics and differences of horizontal and vertical distribution of surface temperature on different thermal active surfaces were discussed in this paper. The findings showed that thermal effect of vertical active surface could not be neglected at the edge of fragmented forest.Vertical active surface of edge was a new thermal active surface with the exception of forest canopy surface, soil surface in and out of the forest. The study will be useful for us to understand microclimatic and biological effect of forest edge.