广东内伶仃岛台湾相思群落在15年间的演替研究  

Succession of Acacia confusa communities during fifteen years in Neilingding Island of Guangdong Province, China

作　　者：徐华林[1] 袁天天[2] 王蕾[3] 关开朗 廖文波[2] 

机构地区：[1]广东内伶仃福田国家级自然保护区管理局,深圳518040 [2]中山大学生命科学学院,广东省热带亚热带植物资源重点实验室,广州510275 [3]首都师范大学资源环境与旅游学院,北京100048

出　　处：《生态科学》2016年第4期12-22,共11页Ecological Science

基　　金：广东内伶仃福田国家级自然保护区管理局项目科研项目(71020057);广东省深圳市野生动植物保护管理处项目科研项目(71020106;71020140);深圳市城管局自然保护区生态监测项目资助

摘　　要：针对1997—1998年在广东内伶仃岛设置并调查的5个台湾相思林固定样地,15年后于2013年再次进行调查并研究群落的演替。结果表明:(1)经过15年的演替,5个台湾相思群落的优势种群发生明显变化,少数种群消退,另又增添了部分优势种群,并且整体上以中生性树种为主;(2)在演替过程中,台湾相思群落的物种多样性指数有上升,亦有下降,但5个群落其乔木层的物种组成更加丰富,年龄结构更加复杂;(3)在5个群落中,台湾相思多以第Ⅳ、Ⅴ龄级立木存在,缺少Ⅰ、Ⅱ、Ⅲ级立木,说明其均为衰退种群。总体上,内伶仃岛的台湾相思群落在后期将演替成为以中生性树种为主的常绿阔叶林群落。By establishing five permanent plots in Neilingding Island, Guangdong Province, the succession of Acacia confusa secondary forest from 1998 to 2013 was investigated. The results are as follows.（1） The main dominant populations in five dominant Acacia confusa communities were undergone some significant changes during fifteen years. Some dominant populations were replaced by other new dominant populations in 2013, and the latter ones were mainly composed of mesophilous plants.（2） With the development of succession, the species diversity of Acacia confusa communities tended to be increased or declined, but the composition of species of tree layer all showed more diversity, and their age-structures were more complex. And（3） the Acacia confusa populations in five communities were predominanted by IV and V standing timbers, and were lack of Ⅰ, Ⅱ and Ⅲ standing timbers, which indicated that they belonged the decline population. In the while, the Acacia confusa communities will be evolved into the evergreen broad-leaved forest characterized by abundant mesophilous tree species.

关 键 词：台湾相思 群落演替 广东省内伶仃岛 中生性树种 

分 类 号：Q145.2[生物学—生态学]