The Population Structure and Distribution Pattern of Cinnamomum rigidissimum in Jianfengling, Hainan Island

LUO Wen; XU Han; LI Yi-de; LUO Tu-shou; LIN Ming-xian; CHEN De-xiang

Contiguous grid quadrates method was used to set up permanent plot to analyze the population structure and distribution pattern of Cinnamomum rigidissimum in Jianfengling, Hainan Island. The results show that the age structure of C. rigidissimum follow a pyramid form. And it is a steady increasing population with relatively more young trees. For the population distribution pattern, the number of individuals from seedling to big tree reduces step by step. And only few individuals can become big trees. At the stage of big tree, the competitiveness of C. rigidissimum enhances and mortality decreases. The number of survival individuals in the stage of super big tree are larger than those in the stage of big tree. The dynamics of population distribution pattern of C. rigidissimum changes from aggregation to random, when trees grow up gradually. For the young trees, the population distribution follows a clump pattern, which is mainly decided by the biological characteristics of themselves and the environment conditions. For the big trees, the population distribution follows a random pattern, which is mainly decided by interpopulation competition and environmental resources conditions.

1. Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, Guangdong, China

2. Jianfengling National Nature Reserve, Ledong 572542, Hainan, China

Received Date: 2009-02-24

Abstract: Contiguous grid quadrates method was used to set up permanent plot to analyze the population structure and distribution pattern of Cinnamomum rigidissimum in Jianfengling, Hainan Island. The results show that the age structure of C. rigidissimum follow a pyramid form. And it is a steady increasing population with relatively more young trees. For the population distribution pattern, the number of individuals from seedling to big tree reduces step by step. And only few individuals can become big trees. At the stage of big tree, the competitiveness of C. rigidissimum enhances and mortality decreases. The number of survival individuals in the stage of super big tree are larger than those in the stage of big tree. The dynamics of population distribution pattern of C. rigidissimum changes from aggregation to random, when trees grow up gradually. For the young trees, the population distribution follows a clump pattern, which is mainly decided by the biological characteristics of themselves and the environment conditions. For the big trees, the population distribution follows a random pattern, which is mainly decided by interpopulation competition and environmental resources conditions.

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Reference (25)

[1]	于永福. 中国野生植物保护工作的里程碑——《国家重点保护野生植物名录(第一批)》[J]. 植物杂志,1999(5):3-11
[2]	李意德,陈步峰,周光益,等. 中国海南岛热带森林及其生物多样性保护研究[M].北京:中国林业出版社,2002:37-62
[3]	李意德,林玉梅,郭宁,等. 海南尖峰岭地区珍稀濒危植物及其丰富度[J]. 热带林业,2002,30(4):35-39
[4]	巨天珍. 天水小陇山锐齿栎群落动态分析[J]. 西北师范大学学报,1994,30(3):80-82
[5]	李明辉,何风华,刘云,等. 林分空间格局的研究方法[J]. 生态科学,2003,22(1):77-81
[6]	许涵,李意德,骆土寿,等. 海南尖峰岭热带山地雨林不同更新林的群落结构、物种多样性及稳定性比较[J]. 林业科学,2009,45(1):14-20
[7]	李意德. 海南岛尖峰岭热带山地雨林的群落结构特征[J]. 热带亚热带植物学报, 1997,5(1):18-26
[8]	张金屯. 数量生态学[M].北京:科学出版社,2004:264-275
[9]	程煜,闫淑君,洪伟,等. 檫树群落主要树种分布格局及其动态分析[J]. 植物资源与环境学报,2003,12(1):32-37
[10]	蒋有绪,卢俊培. 中国海南岛尖峰岭热带林生态系统[M]. 北京:科学出版社:1991:119-126
[11]	蔡飞,宋永昌. 武夷山木荷种群结构和动态的研究[J]. 植物生态学报,1997,21(2):138-148
[12]	刘智慧. 四川省缙云山栲树种群结构和动态的初步研究[J]. 植物生态学与地植物学学报,1990,14(2):120-128
[13]	李善淇. 海南岛尖峰岭天然林主要树种生长过程的探讨[J]. 林业科学研究,1988,1(2):169-178
[14]	黄全,李意德. 海南岛尖峰岭热带山地雨林采伐迹地更新群落的初步分析[J]. 植物生态学与地植物学学报,1988,12(1):12-22
[15]	曲仲湘,文振旺,朱克贵. 南京灵谷寺森林现状分析[J].植物学报,1952,1(1):18-49
[16]	Silvertown W. Introduction to Plant Population Ecology[M]. New York: Longman Group Limited,1982:75-155
[17]	Leak W B. An expression of diameter distribution for unbalanced,uneven-age stands and forests[J]. Forest Science, 1964, 10:39-50
[18]	赵学农,刘伦辉,高圣义,等.西双版纳望天树种群结构与动态研究[J]. 广西植物,1996,16(3):225-232
[19]	李意德. 海南岛尖峰岭热带山地雨林主要种群生态位特征研究[J]. 林业科学研究,1994,7(1):78-85
[20]	Forman R T,Hahn C D. Spatial patterns of trees in Caribbean Semi-evergreen forest ecology[J].Ecology, 1980,61(6):1267-1274
[21]	王峥峰,安树青,朱学雷,等. 热带森林乔木种群分布格局及其研究方法的比较[J]. 应用生态学报,1998,9(6):575-580
[22]	谢佳彦,邓志平. 杭州五云山米槠种群幼苗大小结构及空间分布格局研究[J]. 生态学杂志,2003,22(5):35-39
[23]	洪伟,柳江,吴承祯. 红锥种群结构和空间分布格局的研究[J]. 林业科学,2001,37(11):6-10
[24]	苏志尧,吴大荣,陈北光. 粤北天然林优势种群结构与空间格局动态[J]. 应用生态学报,2006,11(3):337-341
[25]	Bell T, Freckleton R P,Owen T L. Plant pathogens drive density-dependent seedling mortality in a tropical tree[J]. Ecology Letters, 2006, 9(5): 569-574

The Population Structure and Distribution Pattern of Cinnamomum rigidissimum in Jianfengling, Hainan Island

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