摘要
以九龙江口桐花树(Aegiceras corniculatum)林为研究对象,在白礁选取10 a生和5 a生人工桐花树林及天然成熟桐花树林,以光滩为对照,比较不同林龄桐花树林对大型底栖动物的影响;在浮宫选8 a生桐花树林和光滩与白礁红树林对照,比较潮位、盐度等因素的影响,为红树林植被恢复的生态系统改造提供科学指导和理论依据.大型底栖动物物种的丰度及群落的物种多样性与红树林的发育状况呈负相关,且随盐度降低而呈现减少的趋势.整体而言红树林多样性指数和均匀度指数较光滩都要高.光滩甲壳类动物生物量不低于红树林,有些值比红树林更高,但是多毛类生物量远低于红树林.光滩和红树林主要优势种不同,且不同发育程度的红树林底栖动物种类和结构也不同.潮位对红树林底栖动物数量和结构也有影响.
This study focused on the effects of Aegiceras corniculatum mangrove rehabilitation on macro-benthic animals in Jiulongjiang river estuary. At Baijiao, three forests including one ten-year old replanted forest,one five-year old replanted forest,one natural mature forest, and one plot of barren beach were selected to implore the influence of mangrove restoration time on macro-benthic animals. Meanwhile,one eight-year old Aegiceras corniculatum forest and one barren beach plot were selected at Fugong to compare the effect of other factors such as tide level and salinity. Species abundance and polymorphism of macro-benthic animals in Aegiceras corniculatum forests were negatively correlated to development time of mangrove forests, and the values increased with salinity. Diversity index and evenness index of macro-benthic animals were higher in forests than in barren beaches. Biomass of crustaceans in barren beach was not lower than mangroves, even sometimes higher, but the case of polychaete was reverse. There were significant difference in dominant macroenthic animal species between mangrove forests and barren beaches, and different species compositions were found between different mangrove development periods. By comparison between the two sites, tide level and salinity also had significant effects on biomass,density and structure of macro-benthic animals.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第1期109-114,共6页
Journal of Xiamen University：Natural Science
基金
国家自然科学基金(40476040)
福建省自然科学基金(D0410006)资助
关键词
红树林
桐花树
恢复
大型底栖动物
mangrove
Aegiceras corniculatum
rehabilitation
macro-benthic animals
