Late spring-early summer drought and soil properties jointly modulate two pine species?decline and climatic sensitivity in temperate Northern China  

作　　者：Yuheng Li Zhaofei Fan Lihong Xu Xiao Zhang Zhongjie Shi Xiaohui Yang Wei Xiong Ling Cong Semyun Kwon Leilei Pan f Hanzhi Li Shuo Wen Xiaoyan Shang 

机构地区：[1]Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing,100101,China [2]Research Institute of Ecological Conservation and Restoration,Chinese Academy of Forestry,Beijing,100091,China [3]Research Institute of Desertification Studies,Chinese Academy of Forestry,Beijing,100091,China [4]College of Forestry,Wildlife and Environment,Auburn University,AL,36849,United States [5]Ecology and Nature Conservation Institute,Chinese Academy of Forestry,Beijing,100091,China [6]Institute of Ecological Restoration,Kongju National University,Chungcheongnam-do,32439,Republic of Korea [7]University of Chinese Academy of Sciences,Beijing,100049,China

出　　处：《Forest Ecosystems》2025年第1期146-158,共13页森林生态系统(英文版)

基　　金：funded by the National Key Research and Development Plan of China(No.2022YFE0127900);the National Natural Science Foundation of China(Nos.32071558,32171559);the Natural Science Foundation Key Project of Inner Mongolia Autonomous Region,China(No.2023ZD23);the Hulunbuir Science and Technology Plan Project(No.SF2022001);the Fundamental Research Funds of CAF(CAFYBB2023ZA002).

摘　　要：Increasing temperatures and severe droughts threaten forest vitality globally.Prediction of forest response to climate change requires knowledge of the spatiotemporal patterns of monthly or seasonal climatic impacts on the growth of tree species,likely driven by local climatic aridity,climate trends,edaphic conditions,and the climatic adaption of tree species.The ability of tree species to cope with changing climate and the effects of environmental variables on growth trends and growth-climate relationships across diverse bioclimatic regions are still poorly understood for many species.This study investigated radial growth trends,interannual growth variability,and growth-climate sensitivity of two dominant tree species,Pinus tabulaeformis(PT)and Pinus sylvestris var.mongolica(PS),across a broad climatic gradient with a variety of soil properties in temperate Northern China.Using a network of 83 tree ring chronologies(54 for PT and 29 for PS)from 1971 to 2010,we documented that both species maintained constant growth trends at wet sites,while both displayed rapid declines at dry sites.We reported the species-specific drivers of spatial heterogeneity in growth trends,interannual growth variability,and growth-climate relationships.Calculated climatic variables and soil properties were identified as the most critical factors affecting the growth trends and growth-climate relationships.However,climatic variables play more essential roles than soil properties in determining the spatial heterogeneity of the growth-climate relationship.Lower clay content and higher soil nutrient regimes can exacerbate the moisture-related susceptibility of tree growth.Our findings highlight that soil properties emerged as important modulating factors to predict the drought vulnerability of forests in addition to climatic variables.Considering the continued climate warmingdrying trend in the future,both pines will face a more severe growth decline and increase in drought vulnerability at drier sites with lower clayed soil or higher nutrie

关 键 词：Tree rings Climate sensitivity Growth decline Global warming DROUGHT Soil property 

分 类 号：S714[农业科学—林学]