吉林省中部蒙古栎林降雨截留再分配特征  

Characteristics of Rainfall Interception and Redistribution of Quercus mongolica Forest in Central Jilin Province

作　　者：徐丽娜 梁启[1,2] 张言 李天庚[1,2] 隋海新 白巍 王赛一 XU Li-na;LIANG Qi;ZHANG Yan;LI Tian-geng;SUI Hai-xin;BAI Wei;WANG Sai-yi(Forest Suevey and Design Institute of Jilin Province,Changchun 130022;Jilin Songjiangyuan Forest Ecosystem Research Station,Changchun 130022)

机构地区：[1]吉林省林业勘察设计研究院,长春130022 [2]吉林松江源森林生态系统国家定位观测研究站,长春130022

出　　处：《温带林业研究》2022年第1期36-40,47,共6页Journal of Temperate Forestry Research

基　　金：2020年度林业科技创新平台运行补助项目(Y-2020-063)。

摘　　要：【目的】为进一步研究相关模型模拟吉林省中部地区典型森林水量平衡过程提供基础数据,本次研究初步总结了吉林省中部地区天然蒙古栎林的降雨截留分配特征。【方法】基于吉林松江源森林生态系统国家定位观测研究站对其林外降雨、穿透雨、树干径流的定位观测数据,探讨该地区天然蒙古栎林的降雨截留再分配规律。【结果】2020年6—10月的蒙古栎林的林外降雨总量为804.40 mm,穿透雨量、树干径流、林冠截留分别占林外降雨总量的44.85%、5.77%、49.38%;蒙古栎林的穿透雨、树干径流与林外降雨均呈线性函数关系(R^(2)=0.981、R^(2)=0.862,p<0.01);林冠截留与林外降雨呈幂函数关系(R^(2)=0.840)。【结论】与全国其他地区不同林型的冠层截留情况相比,吉林省中部天然蒙古栎林的冠层截留处于较高水平。【Objective】In order to provide basic data for further study of relevant models to simulate the water balance process of typical forests in central Jilin province,this study preliminarily summarized the rainfall interception and distribution characteristics of natural Quercus mongolica forest in central Jilin province.【Method】Based on the location observation data of rainfall outside the forest,penetrating rain and trunk runoff from the national positioning observation and research station of Songjiangyuan forest ecosystem in Jilin province,the rainfall interception and redistribution law of natural Quercus mongolica forest in this area was discussed.【Result】The results showed that the total rainfall outside the Quercus mongolica forest from June to October 2020 was 804.40 mm,and the throughfall,stemflow and canopy interception accounted for 44.85%,5.77%and 49.38%of the total rainfall outside the forest respectively;The relationship between throughfall,stemflow and rainfall outside the forest was linear function(R^(2)=0.981、R^(2)=0.862,p<0.01);The relationship between canopy interception and rainfall outside the forest is a power function(R^(2)=0.840).【Conclusion】Compared with the canopy interception of different forest types in other regions of China,the canopy interception of natural Quercus mongolica forest in the middle of Jilin province is at a higher level.

关 键 词：蒙古栎林 穿透雨 树干径流 林冠截留 

分 类 号：S718.5[农业科学—林学]