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Photosynthetic productivity of Pinus sylvestris, Picea obovata and Larix sibirica

机译:Pinus Sylvestris,Picea Obovata和Larix Sibirica的光合生产力

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An analysis of change in photosynthetic productivity of common pine (Pinus sylvestris), Siberian spruce (Picea obovata) and Siberian larch (Larix sibirica) was conducted in Russia for several years and in individual periods of the vegetation season:early spring, spring-summer, summer and autumn. Correlation was found between high values of photosynthetic productivity and seasons with a certain weather type. Total value of carbon dioxide assimilated by evergreen conifers during spring and autumn periods exceeded the amount assimilated during summer and amounted to 50-70% of the annual value. More than a half of carbon dioxide assimilated by larch was accounted for during the summer period. It is concluded that peculiarities of inter- and intra-seasonal dynamics of photosynthetic productivity allow to explain some phytocoenotic peculiarities of the coniferous species studied which includes their ability to co-exist with deciduous species in mixed communities, long term period spent by juvenile spruce under wood-stand, etc.
机译:普通松树(Pinus Sylvestris),西伯利亚云杉(PICEA OBOVATA)和西伯利亚落叶松(Larix Sibirica)的光合生产力变化分析在俄罗斯几年,在植被季节:早春,春夏,夏天和秋天。在光合生产力的高值与某种天气类型的高值之间发现了相关性。在春季和秋季期间,常绿针织品同化的二氧化碳的总价值超过了夏季同化的金额,占年度价值的50-70%。在夏季期间,落叶松同化的一半以上二氧化碳被占了。得出结论,光合生产力的间季节性动力学的特性可以解释所研究的针叶种类的一些植物细胞特性,其包括它们在混合社区中的落叶物种中的共存能力,长期云杉花费木材架等

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