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吉林长白山植被垂直地带性是欧亚大陆从温带到寒带植被水平地带性的真实对照。通过对长白山北坡不同植物群落21个样点表土花粉组合及其与群落组成数量关系的分析,结果发现:(1)木本植物花粉占76.1%,木本植物与草本植物花粉比值(AP/NAP)约3.2,以桦属和松属为主;(2)岳桦云冷杉林和岳桦林花粉组合能较好地反映植物群落组成;红松云冷杉林花粉组合只能部分反映植物群落外貌;红松林的花粉组合不能较好反映植被特征;高山苔原花粉组合未能反映植物群落数量特征;(3)主要花粉类型中松属和桦属花粉具超代表性,云杉属、杜鹃花科和蔷薇科花粉具低代表性;(4)通过花粉相对含量,DCA分析能较好地区分不同植被类型,但是红松林与红松云冷杉林、岳桦云冷杉林无法区分。本研究可为本区古植被与古环境恢复提供新证据。
The vertical zonal vegetation of Changbai Mountain in Jilin is a true contrast between the zonal characteristics of temperate and boreal vegetation in Eurasia. The results showed that: (1) The pollen percentage of woody plants accounted for 76.1%, and the pollen ratio of woody plants to herbaceous plants (AP / (2) The pollen assemblages of Yue birch fir and Betula platyphylla can better reflect the plant community composition. The pollen assemblages of Abies chensiensis can only partly reflect the plant community The pollen assemblage of Pinus koraiensis forest can not reflect the characteristics of vegetation better. The pollen assemblage of mountain tundra failed to reflect the characteristics of plant community quantity. (3) The pollen types of Pinus and Betula pollens were super-representative, and the Picea, Azalea And Rosaceae pollen are low representative. (4) According to the relative content of pollen, DCA can distinguish different vegetation types well, but the Korean pine forest is not distinguishable from Abies faxoniana forest and Betula ermanii fir forest. This study can provide new evidence for the restoration of ancient vegetation and paleoenvironment in this area.