首页|Interpreting Larix principis-rupprechtii radial growth in northern China based on the Vaganov-Shashkin model
Interpreting Larix principis-rupprechtii radial growth in northern China based on the Vaganov-Shashkin model
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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 sim-ulate 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)for-mation 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 appli-cable for radial growth simulation of subalpine coniferous forests and for guiding the cultivation of local tree species in the future.
College of Urban and Environmental Sciences,Northwest University,Xi'an 710127,People's Republic of China
Institute of Global Environmental Change,Xi'an Jiaotong University,Xi'an 710049,People's Republic of China
Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity,Northwest University,Xi'an 710127,People's Republic of China
State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710061,People's Republic of China
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&&General Program from the Natural Science Foundation of Shaanxi ProvinceOpen Fund Project of the State Key Laboratory of Loess and Quaternary GeologyNational Forestry Public Welfare Industry Scientific Research Project of China
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