Effects of climate change on radial growth and wood quality of Japanese larch

研究了气候变化对日本落叶松（Larix kaempferi, Lamb）径向生长和木材品质的影响。卡尔。)种植园。我们利用树木年代学技术比较了4个站点环宽和密度的气候响应。我们还观察了生长在不同海拔的落叶松径向生长的季节变化。气候响应的结果并未显示高温对径向生长的负面影响随Kira温暖指数的增加而增加。径向生长的季节变化表明，温度对细胞分裂起始和次生壁沉积有强烈的影响，而形成层活性的暂停不受温度的控制。结果表明，未来气候变暖不会同时抑制落叶松年轮宽度和密度。

We investigated effects of climate change on radial growth and wood quality of Japanese larch (Larix kaempferi (Lamb.) Carr.) plantations. We compared climatic responses of ring width and densities among 4 sites using a dendrochronological technique. We also observed seasonal changes in radial growth of Japanese larch trees growing on different altitudes.The results of climate responses do not revealed increase of negative effect of high temperature on radial growth along increased Kira's Warmth Index. The observations on seasonal changes in radial growth revealed that initiations of cell division and secondary wall deposition are strongly affected by temperature, on the other hand, suspension of cambial activity do not controlled by temperature. It can be concluded that future warming will not inhibit both ring widths and densities of Japanese larch.