不同林隙内林分微气候因子的研究

Study on Microclimate Factors in Different Forest Gaps

以小兴安岭地区丽林实验林场具有代表性的红松天然林和红松人工针阔叶混交林为研究对象,在每种林分类型内分别设置大林隙、中林隙、小林隙和对照样地4块标准地进行不同大小林隙各特征的对比分析研究。结果表明:红松天然林和红松人工林内大林隙、中林隙、小林隙和对照每隔3小时的温度情况均表现为先升高后降低;大林隙在各个时间段的温度差异相对较大,变化明显,中林隙次之,小林隙和对照林分的地面温度随时间的变化相对较小;红松天然林吸收和保存光辐射的能力要高于红松人工林,更有利于林木和林分内生物的生长。

Use the representative natural forest and koraiensis brosdlesf mixed of Pinus Koraiensis in Lilin experimental for-est of Xiaoxingˊan mountains,in each stand type,4 standard sample plot were used to carry out the comparative analysis of different size of forest gap,they are big forest gap,middle forest gap,small forest gap and control sample plot. The results show that the temperature of big forest gap,middle forest gap,small forest gap and control sample plot in natural forest and koraiensis brosdlesf mixed of Pinus Koraiensis were increased first and then decreased every 3 hours;the temperature differ-ence of big forest gap in each time period is relatively large,the change is obvious,the temperature of middle forest gap is the second,and the surface temperature of the small forest gap and the control sample plot is relatively small;the absorp-tion and preservation ability of optical radiation of natural forest is higher than that of Korean pine plantation,it is more conducive to the growth of trees and its biological.