Interpreting Larix principis-rupprechtii radial growth in northern China based on the Vaganov-Shashkin model  

作　　者：Jiachuan Wang Shuheng Li Qiang Li Yili Guo Yijie Han Qi Liu Yiqi Zhao 

机构地区：[1]College of Urban and Environmental Sciences,Northwest University,Xi'an 710127,People's Republic of China [2]Institute of Global Environmental Change,Xi'an Jiaotong University,Xi'an 710049,People's Republic of China [3]Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity,Northwest University,Xi'an 710127,People's Republic of China [4]State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710061,People's Republic of China

出　　处：《Journal of Forestry Research》2024年第3期99-110,共12页林业研究（英文版）

基　　金：supported by Alpine timberline fluctuations and the response to climate change at centennial to millennial time scales in the Qinling Mountains (no.42371072);a General Programfrom the Natural Science Foundation of Shaanxi Province (no.2014JQ5172);the Open Fund Project of the State Key Laboratory of Loess and Quaternary Geology (no.SKLLQG1611);the National Forestry Public Welfare Industry Scientific Research Project of China (no.201304309).

摘　　要：Changes in annual radial growth is an important indication of climate change. Dendroclimatology studies in northern China have focused on linear statistical analysis,but lacking studies based on the process of ring formation to clarify the radial growth of trees. Tree-ring width standard chronology(STD) was established using samples of Larix principis-rupprechtii collected at 2303 m altitude on Luya Mountain. Using the Vaganov-Shashkin(VS) model to simulate growth and development, the internal physiological mechanism of radial growth is identified. It was concluded that:(1) the growing season of L. principis-rupprechtii was May to September;(2) soil moisture was a significant factor in the early and late growing seasons, and temperature was the dominant factor in its main growth period;and(3) formation of narrow ring widths was closely related to drought stress, the development of wide ring widths will be restricted by increasing future temperatures. The VS model is applicable for radial growth simulation of subalpine coniferous forests and for guiding the cultivation of local tree species in the future.

关 键 词：Vaganov-Shashkin model Larix principis-rupprechti Tree-ring width Annual growth 

分 类 号：S791.22[农业科学—林木遗传育种]