【作者】 王书凯；

【导师】 胡海清； 张放；

【作者基本信息】 东北林业大学 ， 林业， 2004， 硕士

【摘要】 辽宁东部山区的天然次生林是辽宁的森林资源宝库和辽中城市群的天然屏障，在辽宁的经济建设和生态建设中发挥着不可替代的重要作用。本文以辽东山区天然次生林的主要树种：红松(Pinus koraiensis)、红皮云杉(Picea koraiensis)、蒙古栎(Quercus mongolica)、水曲柳(Fraxinus mandshurica)、花曲柳(Fraxinus rhynchophylla)、黄菠萝(Phellodendron amurense Rupr)、紫椴(Tilia amurensis Rupr)为研究对象，在自然条件下，栽植苗木，进行树种耐阴性试验。从生理生态学角度出发，对上述七种树木在不同光照条件下生长、形态、生理、生化指标进行试验研究。 阐明了光照条件的改变对两种针叶树和五种阔叶树生长量的影响，定量分析了生长与光合有效辐射的关系，通过多元统计分析解释了上述七种树木的生长和形态适应方式及其与环境条件的关系。通过对光合速率与光合有效辐射强度的数学模型，模拟分析光强的改变对苗木光合特性的影响，为解释树种的光适应策略提供了线索和可靠的证据。探讨他们在不同光照环境下生存、生长及适应机理，为合理地经营天然次生林或促进人工林的天然化提供科学详实的指导。更多还原

【Abstract】 The natural secondary forest in the mountainous area of eastern Liaoning province is a precious forest resource of Liaoning and a natural barrier for the city groups in middle Liaoning.It is very important for the economic development and ecological construction of Liaoning.The main species of the natural secondary forest in the mountainous area of eastern Liaoning was studied.They are: Pinus koraiensis, Picea koraiensis, Quercus mongolica, Fraxinus mandshurica, Fraxinus rhynchophylla, Phellodendron amurense Rupr and Tilia amurensis Rupr. Under natural conditions, their seedlings were planted,and the shade-tolerance of them were measured. Physiological indices such as growth, physiology, biochemistry of these 7 species under different illumination conditions were observed.The effect of the changing illumination conditions on the growth increment of these 7 species were studied, and the relationship between the growth and effective photosynthetic radiant was quantified. The adaptation mode of these 7 species in growth and shape and the relationship between them and the environment were studied with multivariate statistical analysis. The mathematic model on the photosynthesis velocity and effective photosynthetic radiant intensity was used to simulate the influence of changing radiant intensity on the photosynthetic character of seedlings. This provides a clue and dependable evidence for explaining the plants, light adaptation strategy. The survival, growth and adaptation mechanism of these species under different illumination conditions were also discussed, which provides a scientific and detailed instruction on how to manage the natural secondary forest and how to accelerate the planted forest into wild wood.更多还原