西北林学院学报2012，Vol.27Issue(1)：43-49,7.DOI:10.3969/j.issn.1001-7461.2012.01.09
濒危物种金花猕猴桃生存群落特征及濒危原因分析
An Analysis on the Characteristics of Community and Endangered Cause of Endangered Species Actinidia chrysantha
摘要
Abstract
In order to understand the habitat characteristics and the present survival situations of Actinidia chrysantha population, coenological investigation was carried out in 19 plots with various areasd 10 m×10 m, 10 m×20 m, 10 m×30 m, 20 m×20 m) in 13 different locations within Guangdong, Hunan provinces and Guargxi Zhuang-zu Autonomous Region of China. Based on the community investigation,the species component, structure, community type, life-form and age structure of A. Chrysantha community were analyzed A. Chrysantha community is very rich in species, communits, there are 351 vascular plant species, belonging to 211 genera and 92 families in 4 800 m2 plots. There are varied types of community with complex structure, which can be divided into 8 types by cluster analysis. The life-form is consisting mainly of phanerophytes, which account for 82. 14% of the total species, but lack of megaphanerophytes. Analysis on age structure of A. Chrysantha population showed that the population tend to decline. Altitude distributions of the most appropriate ranges for the growth of A. Chrysantha are beteveen 900 m to 1 334 m, habitat for the its survival is very limited. The important causes of A. Chrysantha being endangered are habitat demanding and the low fertility which caused by serious geographical isolation and small population size.关键词
金花猕猴桃/濒危原因/群落类型/生活型/年龄结构Key words
Actinidia chrysantha/ endangered cause/ community type/ life-from/ age structure分类
农业科技引用本文复制引用
龚弘娟,蒋桥生,莫权辉,叶开玉,张静翅,李洁维..濒危物种金花猕猴桃生存群落特征及濒危原因分析[J].西北林学院学报,2012,27(1):43-49,7.基金项目
国家自然科学基金(30760027) （30760027）
广西自然科学基金(桂科自0832224) （桂科自0832224）
