生态学报2024，Vol.44Issue(5)：2019-2028,10.DOI:10.20103/j.stxb.202305151018
阔叶红松林林木与林分生长对采伐干扰的响应
Responses of tree growth and stand productivity to harvesting disturbance in Korean pine-broadleaved forests
摘要
Abstract
Restoring forest quality and ecosystem functions is one of the core goals of sustainable forest management.Elucidating the response mechanism of tree and stand growth to harvesting disturbance can provide important guidance.Previous studies preferred to compare the dissimilarity of tree or stand growth under different harvesting treatments,but ignored the differential response of trees to disturbance intensity under different recovery times.This study was conducted in the Korean pine-broadleaved forests in Jiaohe,Jilin province.Based on the observational data collected in 2011,2013,2015,and 2018,we compared the effects of different harvesting intensities and recovery times on tree growth and stand productivity.We evaluated the harvesting threshold of forest productivity using linear and segmental models.The results showed that forest harvesting had significant effects on trees growth and stand productivity.Harvesting promoted tree growth,but reduced stand productivity.Specifically,within two years after harvesting,there was no significant difference in tree and stand growth,while three years after harvesting,tree growth increased significantly,indicating a time lag effect of forest harvesting.In addition,the results based on the segmental models showed that stand productivity was the highest when the remaining basal area was 21.6 m2/hm2.Therefore,from the perspective of sustainable management,21.6 m2/hm2 was the most favorable stand density for forest restoration.The results provide technical guidance for the management and restoration of Korean pine-broadleaved forests.关键词
阔叶红松林/采伐干扰/林木生长/林分生产力/采伐强度Key words
Korean pine-broadleaved forests/harvesting disturbance/tree growth/stand productivity/harvesting intensity引用本文复制引用
岳庆敏,何怀江,张春雨,赵秀海,郝珉辉..阔叶红松林林木与林分生长对采伐干扰的响应[J].生态学报,2024,44(5):2019-2028,10.基金项目
中央高校基本科研业务费专项资金(BLX202106) （BLX202106）
应急管理部国家自然灾害防治研究院基本科研业务专项(ZDJ2022-26) （ZDJ2022-26）
