山深林密的地方,多云、多雾、多雨。群众说:“有林泉不干,天旱雨淋山”。为什么林多雨多呢? 降雨多少在很大程度上决定于大气中水蒸气的多少。在空旷地区,只有地表蒸发水蒸气,而森林区域,地表蒸发降低了,但有林冠、枝叶的物理蒸发作用,又有林木生理过程中的蒸腾作用。一棵树的枝叶在空间的面积,要比这棵树所占的土地面积大的多,这就大大增加蒸发的面积,也就增加了输送到空气中的水蒸气 Mountain deep forest dense place, cloudy, foggy, rainy. The masses said: “There Linquan quit, drought and rainy mountains.” Why is it rainier? How much rain depends largely on the amount of water vapor in the atmosphere. In the open area, only the surface evaporates water vapor, while in the forest area, the surface evaporation decreases, but there is the physical evaporation of the canopy and branches and the transpiration in the physiological process of the forest. The area of ​​a tree’s foliage in space is much larger than the area occupied by the tree, which greatly increases the area of ​​evaporation and increases the amount of water vapor delivered to the air