摘要
为进一步明确海南岛东北和西北部自然红树林群落特征的差异,采用实地调查的方式对两地自然红树林进行调查研究,结果表明:(1)物种组成方面,东北部较西北部更为丰富,东北部记录到自然红树植物15科24种,其中真红树10科18种,半红树5科6种;西北部记录到红树植物12科16种,包括真红树7科11种,半红树5科5种.(2)群落类型方面,东北部自然红树林群落类型较西北部更为丰富,东北部调查到16种自然红树林群落类型,西北部仅8种.(3)优势种方面,东北部以木榄(Bruguiera gymnoihiza)、海莲(Bruguiera sexangula)和红海榄(Rhizophora stylosa)等乔木或小乔木为主;西北部则以红海榄、白骨壤(Avicennia marina)和桐花树(Aegiceras corniculatum)为主,多为灌木.(4)物种多样性方面,东北部物种多样性较西北部更高.东北部红树林各物种多样性指数范围为:物种丰富度指数R(17~24)、香浓维纳指数H(1.33~1.42)、辛普森指数D(0.66~0.71)、物种均匀度指数E(0.79~0.87);西北部为:R(8~16)、H(0.31~1.07)、D(0.19~0.57)、E(0.34~0.80).总之,海南岛东北部自然红树林优势种以乔木为主,西北部以灌木为主,东北部红树林的植物组成、群落类型和物种多样性均较西北部丰富.研究结果可为海南红树林资源的保护与发展提供科学参考.
In the report,in order to further definite the characteristic differences between the natural mangrove forests in northeastern and that in the northwestern of Hainan,the field survey on the mangrove forests in the two areas were performed.The results indicated that the species composition of mangrove forests in the northeast is richer than that in the northwestern.15 families and 24 species of natural mangrove plants are recorded in the northeast,including 10 families and 18 species of true mangroves and 5 families and 6 species of semi-mangroves,12 families and 16 species are recorded in the northwest,including 7 families and 11 species of true mangroves and 5 families and 5 species of semi-mangroves.The community types of the northeastern is more abundant than that of the northwestern.16 natural mangrove community types are obtained in the northeast and only 8 in the northwest.Bruguiera gymnoihiza,Bruguiera sexangula and Rhizophora stylosa are dominant in the northeast,Rhizophora stylosa,Avicennia marina and Aegiceras corniculatum are dominant in the northwest,mostly as shrubs.The species diversity in the northeast is higher than that in the northwest.In the northeastern,the range of diversity indices for each species mangroves are species richness index R(17~24),Shannon-Weiner index H(1.33~1.42),Simpson index D(0.66~0.71),and Pielou evenness index E(0.79~0.87),and in the northwestern,the index is R(8~16),H(0.31~1.07),D(0.19~0.57),and E(0.34~0.80),respectively.In short,the dominant species of natural mangroves in the northeast of Hainan are mainly arbors,but shrubs in the northwest.The plant composition,community types and species diversity of mangroves in the northeast are richer than that in the northwest.Our study provides the reference for the protection and development of mangrove resources in Hainan.
作者
王豪
杨小波
吕晓波
李东海
王重阳
戚春林
Wang Hao;Yang Xiaobo;Lv Xiaobo;Li Donghai;Wang Chongyang;Qi Chunlin(School of Ecology and Environment,Hainan University,Haikou 570228,China;Hainan Academy of Forestry/Hainan Academy of Mangrove,Haikou 570228,China)
出处
《海南大学学报（自然科学版）》
CAS
2024年第2期146-154,共9页
Natural Science Journal of Hainan University
基金
海南省重大科技计划项目(ZDKJ202008)。
关键词
红树林
植物组成
群落特征
mangroves
plant composition
community characteristics
