Missing rings of Larix sibirica associated with climatic elements on the Altai Mountains,China  

作　　者：Kailong Guo Tongwen Zhang Yonghui Wang Xiaoxia Gou Shulong Yu Huaming Shang Ruibo Zhang Li Qin Shengxia Jiang Kexiang Liu Dong Guo Ruxianguli Abureheman Yulin Guo 

机构地区：[1]School of Geography and Tourism,Xinjiang Normal University,Urumqi,830054,People’s Republic of China [2]Institute of Desert Meteorology,China Meteorological Administration,Urumqi,830002,People’s Republic of China [3]Key Laboratory of Tree-Ring Physical and Chemical Research,China Meteorological Administration,Urumqi,830002,People’s Republic of China [4]Xinjiang Climate Center,Urumqi,830002,People’s Republic of China

出　　处：《Journal of Forestry Research》2025年第1期359-370,共12页林业研究(英文版)

基　　金：supported by the Natural Science Foundation of Xinjiang Uigur Autonomous Region−Science Fund for Distinguished Young Scholars(2022D01E105);the Natural Key Research and Development Program(Inter-governmental Key and Special Project,2023YFE0102700);Tianshan Talent Training Program−Young Scientific and Technological Innovation Talent(2023TSYCCX0076);the Science and Technology Development Fund Project of Institute of Desert Meteorology,China Meteorological Administration(KJFZ202306,KJFZ202406);Xinjiang Regional collaborative innovation project(2022E01045)。

摘　　要：The physiological structure and growth of trees in extreme environments(freezing temperatures,prolonged drought,wildfires,pest infestations,and diseases)can be inhibited,including radial growth,and stagnant growth or missing annual rings is highly possible.In this study,we analyzed the radial growth of Siberian larch(Larix sibirica)in the Hongshanzui area of the Altai Mountains,China.The overall missing ring rate at the sampling point was 2.39%,with years with the highest missing rings since meteorological site data were available(1960)identified as 1960,1961,1971,1973,1985,1987,and 1995.Radial growth in high altitudes was mainly affected by temperatures in May and June(average temperature,average minimum temperature,and average maximum temperature).Frequent periods of freezing may lead to missing annual rings.However,while Larix sibirica shows resilience after prolonged freezing temperatures,it still requires time for the trees to return to normal growth levels.

关 键 词：Missing tree rings Low growing season temperatures Altai Mountains Ecological resilience Larix sibirica 

分 类 号：S71[农业科学—林学]