摘要
为了解广西山口红树林生态国家级自然保护区(以下简称“山口保护区”)红树种群生存现状,于2021年8-9月设置17个10 m×10 m样方开展红树群落野外调查,分析山口保护区红树种群数量动态变化特征。结果显示,研究区内共有秋茄树(Kandelia obovata)95株、桐花树(Aegiceras corniculatum)977株、白骨壤(Avicennia marina)119株、木榄(Bruguiera gymnorhiza)123株和红海榄(Rhizophora stylosa)134株,这5种红树种群的种群更新层数量较匮乏。桐花树种群的存活曲线属于DeeveyⅠ型,秋茄树种群、白骨壤种群、木榄种群和红海榄种群的存活曲线介于DeeveyⅠ型和DeeveyⅡ型之间,5种红树种群均为稳定型。5种红树种群均易受环境的影响,对外界干扰敏感程度较高,但相对而言,桐花树种群抗干扰能力最强,木榄种群最易受外界干扰。经过对未来2、4、6个龄级时间的预测,发现5种红树种群整体在未来有一定的更新能力,桐花树种群补充能力优于其他红树种群。红树种群数量动态分析可为红树林生态系统碳储量调查断面的布设提供理论依据,另外建议加强对山口保护区红树群落的抚育管理,确保红树林群落整体稳定。
In order to understand the survival status of mangrove populations in Guangxi Shankou Mangrove Ecological National Nature Reserve(hereinafter referred to as‘Shankou Reserve’),from August to September 2021,seventeen 10 m×10 m plots were set up to carry out field investigation of mangrove populations,and the dynamic changes of mangrove population in Shankou Reserve were analyzed.The results showed that there were 95 strains of Kandelia obovata,977 strains of Aegiceras corniculatum,119 strains of Avicennia marina,123 strains of Bruguiera gymnorhiza and 134 strains of Rhizophora stylosa in the study area.The number of population regeneration layers of these five mangrove populations were relatively scarce.The survival curve of Aegiceras corniculatum population belonged to DeeveyⅠtype.The survival curves of K.obovata population,Avicennia marina population,B.gymnorrhiza population and R.stylosa population were between DeeveyⅠtype and DeeveyⅡtype.The 5 mangrove populations were stable.The 5 mangrove populations were susceptible to the environment and were highly sensitive to external interference.However,relatively speaking,the Aegiceras corniculatum population had the strongest anti interference ability,and the B.gymnorrhiza population was most susceptible to external interference.After the prediction of the next 2,4,and 6 age classes,the 5 mangrove populations as a whole had a certain ability to renew in the future,and the Aegiceras corniculatum population had better replenishment ability than other mangrove populations.The dynamic analysis of mangrove population can provide a theoretical basis for the layout of mangrove ecosystem carbon storage survey sections.In addition,it is suggested to strengthen the tending management of mangrove populations in Shankou Reserve to ensure the overall stability of mangrove populations.
作者
宁秋云
黄中坚
赖廷和
何斌源
马日宇
张桂顺
龙云宇
韦兆富
林金兰
李英花
莫珍妮
朱婷
刘俐
秦旭东
NING Qiuyun;HUANG Zhongjian;LAI Tinghe;HE Binyuan;MA Riyu;ZHANG Guishun;LONG Yunyu;WEI Zhaofu;LIN Jinlan;LI Yinghua;MO Zhenni;ZHU Ting;LIU Li;QIN Xudong(Guangxi Marine Testing Center,Ministry of Natural Resources of China,Guangxi Marine Disaster Emergency Center,Guangxi Academy of Oceanography,Nanning,Guangxi,530022,China;Guangxi Shankou Mangrove Ecological National Nature Reserve Management Center,Beihai,Guangxi,536000,China)
出处
《广西科学院学报》
2024年第3期248-257,共10页
Journal of Guangxi Academy of Sciences
基金
国家自然科学基金项目(42366009)
防城港核电厂红树林生态项目(4600021727)
广西重点研发计划项目(2022AB20070)资助。
关键词
红树种群
静态生命表
种群数量动态
生存函数
时间序列
mangrove population
static life table
population quantitative dynamics
survival function
time sequence
