Temporal heterogeneity in climatic responses of four tree species in the Altai Mountains, northwest China  

作　　者：Hanxue Liang Leibo Che Wenyang Si Na Liu Zhitao Wu Ziqiang Du Jianwei Shi Tianjie Lei Bin Sun Shaowei Jiang 

机构地区：[1]Institute of Loess Plateau,Shanxi University,Taiyuan 030006,People’s Republic of China [2]Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems,South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,People’s Republic of China [3]Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences,Beijing 100081,People’s Republic of China [4]Institute of Forest Resource Information Techniques(IFRIT),Chinese Academy of Forestry,Beijing 100091,People’s Republic of China

出　　处：《Journal of Forestry Research》2024年第6期230-241,共12页林业研究（英文版）

基　　金：supported by the Natural Science Foundation of Shanxi Province(202203021221008);the Special Funding for Shanxi Provincial Science and Technology Innovation Talent Team(202204051001010);the National Natural Science Foundation of China(41701047).

摘　　要：In the context of ongoing climate change,rela-tionships between tree growth and climate present uncertain-ties,which limits the predictions of future forest dynamics.Northwest China is a region undergoing notable warming and increased precipitation;how forests in this region will respond to climate change has not been fully understood.We used dendrochronological methods to examine the rela-tionship between climate and the radial growth of four tree species in a riparian forest habitat in Altai region:European aspen(Populus tremula),bitter poplar(Populus laurifolia),Swedish birch(Betula pendula),and Siberian spruce(Picea obovata).The results reveal that European aspen was insen-sitive to climate changes.In contrast,bitter poplar showed a positive response to elevated temperatures and negative to increased moisture during the growing season.Swedish birch and Siberian spruce were adversely affected by higher temperatures but benefited from increased precipitation.A moving correlation analysis suggested that,against a back-drop of continuous warming,growth patterns of these spe-cies will diverge:European aspen will require close moni-toring,bitter poplar may likely to show accelerated growth,and the growth of Swedish birch and Siberian spruce may be inhibited,leading to a decline.These findings offer insight into the future dynamics of riparian forests under changing climate.

关 键 词：Broadleaf species Coniferous species Warming and increased precipitation SPEI Riparian forests 

分 类 号：S718.512[农业科学—林学]