| 邓贤兰,龙婉婉,肖春玲.井冈山福建柏种群结构与分布格局的研究[J].井冈山大学自然版,2017,(1):45-48 |
| 井冈山福建柏种群结构与分布格局的研究 |
| POPULATION STRUCTURE AND DISTRIBUTION PATTERN OF FOLIENIA HODGINSII IN JINGGANGSHAN |
| 投稿时间：2016-11-02 修订日期：2016-12-20 |
| DOI：10.3969/j.issn.1674-8085.2017.01.009 |
| 中文关键词: 福建柏 种群结构 分布格局 井冈山 |
| 英文关键词: Fokienia hodginsii population structure distribution pattern Jinggangshan |
| 基金项目:国家自然科学基金项目（31660053）；江西省教育厅科技计划项目（GJJ150784）；吉安市科技支撑计划项目（吉市科计字[2014]36号16） |
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| 中文摘要: |
| 采用样地调查法，对井冈山福建柏的种群结构和分布格局进行了研究。结果表明：井冈山福建柏种群Ⅰ级幼苗数最多，占样地内福建柏个体数的55.00%，III级中龄树和V级老龄树个体数最少，均占样地内福建柏个体数的6.67%，种群结构为金字塔型，属于增长型种群。福建柏种群生命期望值先随径级增加而增加，然后又随径级的增加而递减，Ⅲ级中龄树的死亡率为负值。福建柏种群的存活曲线为近直线型，生长较为稳定。福建柏种群的分布格局呈集群分布。福建柏的种群特征主要由福建柏本身的生物学特性、所处群落的环境条件和群落结构所决定。 |
| 英文摘要: |
| The population structure and distribution pattern of Fokienia hodginsii population in Jinggangshan were studied by quadrat method. The results show that the number of seedling in Ⅰ grade is the most, accountedfor 55.00% of total, the number of middle-age trees in III grade and old trees in V grade are the least, andaccounted for 6.67% of total respectively. The population structure of F. hodginsii in Jinggangshan was of Pyrimidtype, indicating that it is growing population. Based on the analysis of static life table, with increasing of diameterclass, the life expectancy of the population increases step by step firstly, and then decline step by step, and themiddle-age trees in Ⅲ grade has negative mortality. The survival curve of F. hodginsii population in Jinggangshanwas approximately linear, indicating its growth is relative stability. F. hodginsii population presented a clumpingdistribution. The population characteristics of F. hodginsii were decided by its biological characteristics,community environmental factors and community structure. |
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