森林工程2025，Vol.41Issue(4)：691-703,13.DOI:10.7525/j.issn.1006-8023.2025.04.004
不同径级红松生长对气候变化响应稳定性和极端干旱适应性分析
Stability and Extreme Drought Adaptability of Different Diameter Grades of Pinus koraiensis Growth in Response to Climate Change
摘要
Abstract
As the global climate warms,the frequency of extreme events increases,resulting in the decline and even death of some of the world's forests,and in some places the impact is more pronounced on large trees.The climate in Northeast China is gradually becoming warmer and drier,and Pinus koraiensis,as the main precious tree species in Northeast China,has already experienced a decline in the study area.However,the differences in the effects of tempera-ture rise and extreme events on the growth of Pinus koraiensis of different diameter classes have not been studied in de-tail.The response of different diameter classes of Pinus koraiensis to climate change and the adaptability characteristics(resistance,resilience,restoring elasticity and relative resilience to extreme drought were analyzed and compared by dendrochronology in the natural forest area of southern Xiaoxing'anling.The results showed as follows:1)There was a negative correlation between large diameter and the maximum temperature at the beginning of the growing season,and a positive correlation between large diameter and the precipitation in June of the same year;the minor grade was negatively correlated with the precipitation at the end of the growing season in the current year and the previous year.2)The growth trend of large diameter class and small diameter class was basically the same,in which the response stability of large di-ameter class to the maximum temperature of the growing season was lower than that of small diameter class,and the growth of small diameter class was mainly affected by the decrease of precipitation.3)With the warming of climate,the resistance and relative resilience of different diameter classes to extreme drought showed a downward trend,and the adaptability of large diameter class to drought was slightly lower than that of small diameter class,but the difference was not obvious.The difference of response to climate and the stability of response of different diameter classes of Pinus ko-raiensis mainly appeared in the early growing season of rapid growth,reflecting the different demand of different diameter classes for hydrothermal conditions.With the warming of climate,the adaptability of radial growth of different diameter classes of Pinus koraiensis to extreme drought events decreased,and it could not recover to the pre-drought level in the short term.It is predicted that the future climate will continue to rise,and the adaptability of large diameter class Pinus koraiensis may weaken.Further analysis should be carried out based on the frequency and time of drought,and the re-search scope should be expanded to deal with the adverse effects of warming on Pinus koraiensis forest,which will play an important role in forest management.关键词
树木年轮/径级/恢复弹力/干旱/气候变暖/红松Key words
Tree ring/diameter grade/restoring elasticity/drought/climate warming/Pinus koraiensis分类
农业科技引用本文复制引用
齐妍,刘滨辉,苏远航,周婉莹,张峰源,窦泽雨..不同径级红松生长对气候变化响应稳定性和极端干旱适应性分析[J].森林工程,2025,41(4):691-703,13.基金项目
国家自然科学基金项目(41877416). （41877416）
