Researches on ecology, genetics and tree improvement of temperate and boreal tree species correspondent to global warming.

研究了全球变暖导致的气候带筛分对森林植被的影响。并对森林生态系统的维护方法进行了探讨。我们对I进行了系统的调查；基因保护，II；与生理和生态特征有关的遗传变异；群体遗传学；对新环境的适应性估计，V；对环境变化适应性小种的选择，特别是松科、桦木科、壳斗科的选择。主要的实际研究如下：1。云杉林的更新体系及遗传变异。栎树种间杂交的形成。基于DNA分析的落叶松物种分类。基于DNA分析的桦树种类分类。日本西部油葵居群的遗传变异。得到松科、桦木科、壳斗科主要树种的物种特征和遗传变异的相关信息。为进一步开展全球变暖的生态生理研究收集重要的基因资源。

We investigated on the change of forest vegetation corresponding to the climate zone sifting which will be caused by the global warming. And also investigated on the method for maintenance of such forest ecosystems. We conducted systematic investigation on I ; gene conservation, II ; genetic variation concerning to the physiological and ecological features, III ; population genetics, IV ; estimation of adaptability to the new environment, V ; selection of adaptable races to the environmental change especially on the species of Pinaceae, Betulaceae, Fagaceae.Main actual researches are as follows ;1.Regeneration system and genetic variation of Picea polita forest.2.Hybrid formation among Quercus species.3.Classification of Larix species by using DNA analysis.4.Classification of Betula species by using DNA analysis.5.Genetic variation among populations of Fagus crenata in western Japan.As the result, we could obtain the inflammations on species feature and genetic variation of main species of Pinacea, Betulaceae, Fagaceae. We could also collect important gene resources for the further development of eco-physiological study on global warming.