森林对降水的影响概述

森林能否增加降水,这是植树造林、美化环境等工作中必然要考虑的问题。文章总结了国内外相关文献,就森林对降水的影响做了阐述。综合现有研究结果来看,森林对降水有无影响目前还没有普遍性的结论;对于局地森林对降水的影响应持保守态度,既不能说"有",也不能说"无"。明确的结论必须结合当地地形、天气、气候条件做具体的研究分析后才能得出,这样的结论才更科学,更具指导意义。因此关于宁夏植树造林是否对宁夏的区域气候产生影响,以及有什么样的影响,目前还不清楚。另外一个主要问题就是森林的尺度,即多大面积的森林才会对区域降水产生影响,因为如果森林的面积很有限,对区域降水的影响是否也很有限等等,这些问题都需要进一步深入研究和探讨。

A Summary of Effect of Forest on Rainfall

Whether forest can increase rainfall,is the problem which must be considered in planting trees and improving the environment,etc.The correlative literature at home and abroad was summarized and the effect of forest on rainfall.was elaborated.Based on the existing research results,the effect of forest on rainfall is no universal conclusion presently.We should be conservative and can’t say "yes",also can’t say "no"to the effect of the forest on local rainfall.Definitive conclusions must be drawn by analyzing local conditions of topography,weather and climate.As such,the conclusion could be more scientific,more guidance.It is unclear that the effect of afforestation on local climate in Ningxia.Another major problem is the forest scale,namely what big an area of forest could impact the regional precipitation.Because if the forest area is very small,the influence on local precipitation is also very limited and so on,all these questions need further study and discussion.