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作 者 ：农寿千;杨小波;李东海;杨立荣;徐中亮;陈玉凯;罗召美

期 刊 ：植物科学学报 2011年 29卷 4期 页码：459-466

关键词：红树林；植被组成；植被演变；清澜港；

Keywords:Mangrove forest, Vegetation composition, Vegetation evolution, Qinglan,

摘 要 ：清澜红树林保护区位于海南岛东北部文昌市境内,为全面了解其植物多样性,对其各类植被进行了调查。共记录到维管植物172种,隶属于62科148属。其中真红树植物24种,占全省真红树(26种)的92.31%,占全国(28种)的85.71%,占全世界(86种)的27.91%;在4040 m²样地内,共记录到高度1.5 m以上的红树植物29种3670株,其中重要值最高的为海桑Sonneratis caseolaris,其次是海莲Bruguiera sexangula,两者重要值依次是12.90和12.33;但在个体数量上,角果木Ceriops tagal和红海榄Rhizophora stylosa占优势。清澜港红树林保护区自然植被具体划分为1个植被类型组、1个植被类型、2个群系组和12个群系。经过19年的演变,木榄Bruguiera gymnorrhiza和水椰Nypa fruticans群落消失,瓶花木Scyphiphora hydrophyllacea群落也破碎成零星分布,新出现了木果楝Xylocarpus granatum群落,其他如海桑Sonneratia caseolaris等群落则继续保持稳定,变化很小。

Abstract:Qinglan Mangrove Reserve is located in Wenchang city in northeast Hainan Island,China.To understand species diversity,we investigated all vegetation in this area.A total of 172 vascular plant species were recorded,belonging to 148 genera and 62 families.Among them,24 species were true mangrove species,accounting for 92.31% of mangrove species in the province(26 species),85.71% of mangrove species in whole country(28 species),and 27.91% of mangrove species in the world(86 species).In the survey plots(4040 m²),3670 trees belonging to 29 mangrove species which were more than 1.5 m high were recorded.Among them,Sonneratia caseolaris and Bruguiera sexangula had the highest importance values of 12.90 and 12.33,respectively.In individual quantity,however,Ceriops tagal and Rhizophora stylosa were most dominant.The Qinglan Mangrove Reserve can be divided into one vegetation type group,one vegetation type(Broad-leaved forest),two formation groups(Mangrove and Semi-Mangrove) and twelve formations(Form.Bruguiera sexangula + Xylocarpus granatum,Form.Sonneratia alba+ Lumnitzera racemosa,Form.Rhizophora apiculata + Bruguiera sexangula,Form.Sonneratia caseolaris,Form.Aegiceras corniculatum,Form.Sonneratia alba,Form.Avicennia marina + Sonneratia alba + Ceriops tagal,Form.Rhizophora stylosa + Ceriops tagal,Form.Ceriops tagal,Form.Rhizophora stylosa,Form.Lumnitzera racemosa,Form.Lumnitzera racemosa + Bruguiera sexangula).After 19 years,Form.Bruguiera gymnorrhizaand Form.Nypa fruticans have vanished,the Scyphiphora hydrophyllacea community has fragmented into many small plaques,a new Xylocarpus granatum community has formed,and other communities,like Sonneratia caseolaris have remained stable.

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