摘要
以我国雷州半岛红树林为调查与研究对象,采用样方调查方法对红树林区系组成、群落结构和分布特征开展调查分析。调查结果表明:雷州半岛红树林的群落可分为24个类型,其中白骨壤群落面积占比高达60.55%,占有绝对优势;雷州半岛红树林包括真红树植物8科13种,占全国真红树植物物种的50%,半红树植物8科10种,占全国半红树植物物种的83.33%;Shannon—Wiener多样性指数为0.09—1.08,部分研究区域之间数值差异较大;从向陆林缘至向海林缘,物种多样性沿潮间带的变化趋势比较一致,为高潮间带>中潮间带>低潮间带;白骨壤为雷州半岛重要的优势种,在高、中和低潮间带均有分布,聚集分布为高潮间带<中潮间带<低潮间带;与2008年雷州半岛国家“908”专项红树林调查结果相比,该地区所记录的红树物种由14种增加到了23种,受2008年寒害所影响而枯死的红海榄又逐渐恢复;附城镇1995年引进无瓣海桑,与乡土种白骨壤、秋茄一起成为当地的优势种,说明无瓣海桑的引进对于当地红树林群落恢复具有一定的促进作用。虽然雷州半岛物种组成较为丰富,但是红树林群落结构仍然不够合理,对残次天然纯林进行改造和人工多物种造林,是日后雷州半岛红树林群落恢复和重建的重要方向;同时也要加强乡土红树植物物种恢复,维持雷州半岛红树林生态系统物种多样性与生态平衡。
Based on the mangrove community in the Leizhou Peninsula by survey and data analysis,it was also researched for mangrove species composition,community structure and distribution characteristics in the Leizhou Peninsula.The results showed that there were 24 species of mangrove communities in the Leizhou Peninsulathe,and Avicennia marina community was absolutely the first dominant species with an area contribution of 60.55%.A total of 13 species of true mangroves(accounting for 50%of the true mangrove species in China)and 10 species of semi-mangrove(accounting for 83.33%of the semi-mangrove species in China)were recorded in the survey areas.Shannon-Wiener index ranged from 0.09 to 1.08,and there were significant correlations in these indices with some research areas.The trend of Shannon index along the intertidal zone was smaller from high tide to low tide,which was relatively consistent.Avicennia marina,contributing continuously on the beach from the landward to the seaward,was an important dominant species in the Leizhou Peninsula,whose aggregation at population level became higher from high tide to low tide.Compared with the results of the national"908"project for mangrove survey in 2008,the mangrove species recorded in the Leizhou Peninsula increased from 14 to 23,a large area of Rhizophora stylosa that died being the cold damage in 2008 was gradually recovered.Sonneratia apetala(which introduced and artificial planting in Fucheng town in 1995)and the native true mangrove species(Avicennia marina and Kandelia obovata),became the dominant species in this region,which meant the introduction of Sonneratia apetala had some positive effect in restoring local mangrove communities.Although the species composition of the Leizhou Peninsula was rich,the structure of the mangrove community was still not rational.Improvement in residual secondary natural forests and plantations was the focus of the restoration and reconstruction of mangrove communities in Leizhou Peninsula.In the meantime,the planting of local mangrove spe
作者
唐秋霞
王友绍
TANG Qiuxia;WANG Youshao(Key Laboratory of Tropical Marine Environmental Dynamics,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China;Daya Bay Marine Biology Research Station,Chinese Academy of Sciences,Shenzhen 518121,China;Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),Guangzhou 511458,China;Innovation Academy of South China Sea Ecology and Environmental Engineering,Chinese Academy of Sciences,Guangzhou 510301,China;University of Chinese Academy of science,Beijing 100039,China)
出处
《生态科学》
CSCD
2021年第5期23-32,共10页
Ecological Science
基金
国家重点研发计划(国科技基础资源调查专项)(2017FY100700)
国家自然科学基金重点项目(U1901211和41876126)
中国科学院国际伙伴计划项目(133244KYSB20180012)
中国科学院A类战略性先导科技专项(XDA23050200和XDA19060201)。
关键词
雷州半岛
红树林
物种组成
空间分布
群落结构
the Leizhou Peninsula
mangroves
species composition
spatial distribution
community structure
