Research on Population Ecology of Liriodendron chinense in Luosike Mountain in Duyun City

Le résumé fourni par la source

[Objective] The study was to provide a scientific base for the protection of Liriodendron chinense population.[Method] L.chinense population distributed in Luosike mountain in Duyun City was investigated by the exampling method of 10m×10m,and combined with investigation on L.chinense population in shrub stratum by 4 m×4 m exampling method and on that in herb stratum by 1 m×1 m exampling method within the quadrat,the dynamic characteristics of the population were studied on the existing analyses of population size and static state life table etc.[Result] Analysis of existing analyses of population size and population static state life table all showed that the structure type of L.chinense population was declination type.The plant number of S1 grade was little and the growth ability of poputation was very weak.The propagation plant of S3~S6 grade was little and its ability of producing seed were influenced,so its renewing was difficult.Statistical results of population size divided according to the height class and thorax diameter class were uniformity.[Conclusion] The population belong to declination type with extremely renew difficulty,and its comprehensive protection should be strengthened.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.