山东省济南市石灰岩山地植物群落演替特征  

Succession Characteristics of Plant Community in Limestone Mountainous Region of Jinan in Shandong Province

作　　者：王惠[1] 房用[2] 王仁卿[3] 王淑军[3] 

机构地区：[1]济南大学,济南250002 [2]山东省林业科学研究院 [3]山东大学

出　　处：《东北林业大学学报》2009年第5期54-57,共4页Journal of Northeast Forestry University

基　　金：国家自然科学基金(40672158);山东省优秀中青年科学家科研奖励基金(2006BS08004);中国博士后科学基金面上项目(20070421082)资助

摘　　要：以山东省济南市石灰岩山地封育10、20、30a的林分为研究对象,探讨了自然演替过程中植物群落的组成、更新、结构和复杂性特征。结果表明:石灰岩山地植物群落在封育后的演替过程中各树种的重要值、低高度级的个体数量先减少后增加,高度在2.0～4.0m的植株在演替阶段Ⅲ中数量最多。较大径级的植株在群落中占的比例逐渐增加,演替早期径级分布较均匀。树种组成复杂性、层次结构复杂性、群落总体复杂性先减少再增加。在不同演替过程中,群落中更新乔灌木的重要值不同。在整个演替过程中均出现的具有较高重要值的乔木是侧柏和黄榆,灌木是荆条、锦鸡儿和酸枣,表明这些乔灌木将在植被恢复中起重要作用,应加以保护。A survey was conducted to study the community composition, structure, complexity and regeneration of forests enclosed for 10, 20, and 30 years in limestone mountainous region of Jinan, Shandong Province. Results showed that the important values of all the tree species and the quantity of individuals at lower height decreased first and then increased, and the individuals at height between 2.5 and 4.0 meters had the highest quantity in succession phase Ⅲ. The quantity of trees with large diameter gradually increased during succession, and the individual distribution of different diameter classes was uniform at early succession phase. The compositional and structural complexity of tree species and the complexity of whole community decreased first and then increased with succession. The important values of regeneration species of vegetations were various during different succession phases. Caragana sinica, Vitex negundo var. heterophylla and Ziziphus jujube had higher important values during the whole succession process, and Platycladus orientalis and Ulmus macrocarpa had higher important values, which indicate that these plants play an important role in vegetation restoration and should be protected during regeneration.

关 键 词：济南市 石灰岩山地 次生演替 群落结构 复杂性 更新 

分 类 号：S718.54[农业科学—林学] S717.192