Dynamic response to climate change in the radial growth of Picea schrenkiana in western Tien Shan,China  

作　　者：Liang Jiao Shengjie Wang Ke Chen Xiaoping Liu 

机构地区：[1]College of Geography and Environment Science,Northwest Normal University,Lanzhou 730070,People’s Republic of China [2]Faculty of Geographical Science,Beijing Normal University,Beijing 100875,People’s Republic of China

出　　处：《Journal of Forestry Research》2022年第1期147-157,共11页林业研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Projects Nos.41861006 and 41630750);the Scientific Research Program of Higher Education Institutions of Gansu Province(2018C-02);the Research Ability Promotion Program for Young Teachers of Northwest Normal University(NWNU-LKQN2019-4)。

摘　　要：Forests are important ecosystems for economic and social development.However,the response of tree radial growth to climate has produced‘divergent problems'at high latitudes under global warming.In this study,the response stability and trend of Picea schrenkiana radial growth to variability in climate factors were analyzed in the mid-latitudes of the western Tien Shan Mountains.Radial growth of P.schrenkiana was mainly limited by minimum and mean temperatures.The divergent responses of radial growth occurred in response to the minimum and mean temperatures at the beginning of the growing season(April–May)of the current year,but responses to drought occurred in July–September of the previous year.And the mean and minimum temperatures in June–September of the current year were both stable.Radial growth first increased and then decreased according to the basal area increment,with a gradual increase in temperature.Therefore,forest ecosystems in mountainous arid areas will be increasingly affected by future climate warming.

关 键 词：DENDROECOLOGY Divergent response Climate change Forest degradation Western Tien Shan mountains 

分 类 号：S791.18[农业科学—林木遗传育种]