| 江西德兴天然次生林林下幼苗更新特征 |
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| 引用本文： | 刘光正,;林小凡,;岳军伟,;朱恒,;张天海,;王丽艳.江西德兴天然次生林林下幼苗更新特征[J].江西林业科技,2014(6):10-14. |
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| 作者姓名： | 刘光正 ;林小凡 ;岳军伟 ;朱恒 ;张天海 ;王丽艳 |
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| 作者单位： | [1]江西省林业科学院,江西南昌330013; [2]上饶市林业科学研究所,江西上饶334000; [3]德兴市林业局,江西德兴334200 |
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| 基金项目： | 江西省财政林业重大专项“常绿落叶林恢复重建技术研究与示范”（项目编号：200651010301） |
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| 摘 要： | 为了解实生和萌生幼苗个体数量及比例在各类植被中的变化情况,本文以江西德兴常绿阔叶林不同林分为研究对象,对各林型中幼苗的种类组成、数量、多样性与更新方式进行调查研究。结果表明：7种林分类型的乔木更新情况不同,德兴常绿阔叶林更新幼苗共35种,分属17科23属。更新苗数量最低的是拟赤杨＋马尾松林,仅为1 250株/hm^2,更新苗最多的林分类型为米槠＋甜槠林,为6 500株/hm^2;甜槠＋木荷林更新幼苗种类高达25种,居7种林分之首,马尾松＋木荷林下幼苗仅有10种;从演替更新年龄结构来看,马尾松＋木荷林和丝栗栲＋木荷林所在的群落,林下更新苗属于增长型锥体。其它5种林型属于下降型锥体。
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| 关 键 词： | 次生林 更新幼苗 群落组成 |
Regeneration Characteristics of Seedlings under Natural Secondary Forest in Dexing City of Jiangxi Province |
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| Institution: | LIU Guang-zheng,LIN Xiao-fan,YUE Jun-wei,ZHU Heng,ZHANG Tian-hai,WANG Li-yan (1. Jiangxi Academy of Forestry, Nanchang Jiangxi 330013, China; 2. Shangrao City Forestry Scienee Research Institute, Shangrao Jiangxi 334000, China; 3. Dexing City Forestry Bureau, Dexing Jiangxi 334200, China) |
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| Abstract: | Objective to find out the change of the quantity and ratio of regeneration seedlings in types of vegetations. Taking different stand of evergreen broad-leaved forests in Dexing city of Jiangxi province as the research object, investigation was carried out on seedings of different stands tree species composition including species composition, quantity, species diversity and regeneration patterns. The results showed that tree regeneration situation was different in 7 forest stand types. Under the natural secondary forest, there were 35 species regeneration seedlings which were belonged to 17 families and 23 genera,respectively. The number of regeneration seedlings（1 250/hm^2） was fewest under the Alniphyllum fortunei and Pinus massoniana forests, but highest under Castanopsis eyrei and C. carlesii forests（6 500/hm^2）. The 25 species of regeneration seedlings under C. eyrei and Schima superba forests were more then 10 species under P. massoniana and S. superba forests.From succession and age structure, the regeneration seedlings of two communitys of P. massoniana and S. superba forests and C. fargesii and S. superba forests were belong to growth-cones, other five forest types seedlings were drop type-cones. |
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| Keywords: | secondary forest regeneration seeding community composition |
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