热带滨海沙滩上森林植被的组成成分与土壤性质的研究

1　前　言在 1 96 3年张宏达提到分布在海南万宁海岸沙滩上的青梅林 (Ｖａｔｉｃａｍａｎ ｇａｃｈａｐｏｉｆｏｒｅｓｔ)时 ,就认为该森林缺乏雨林的结构1 ],但仍把它归入平地及低山的原生植被里2 ]。 1 981年 ,胡玉佳对海南龙脑香林进行比较研究后指出 ,这是一块分布在特殊环境里的热带雨林类型 ,由于土壤条件恶劣和常年受海风的影响 ,形成了这一特殊森林3 ]。 1 987年王伯荪在讨论季雨林的概念时 ,进一步指出这块森林属于土壤顶极森林群落4 ]。尽管前人未曾对这一块热带滨海沙滩上的森林植被性质与土壤性质的相互关系开展过详细的比…

The Floral Components and Soil Properties of Forest on the Tropical Sandy Beach

This paper deals with the floral components and soil nutrient dynamics and their relationship in Vatica mangachapoi forest on the tropical sandy beach .The results are : 1 The floral components of Vatica mangachapoi forest are different from that of other forest at the same climatic regions. 2 The plant species increase from 6 of which to 137 species ,especially 64 are tropical rain forest species, although the Simpson and Shannon-weiner indexes(species diversity indexes) are 2.19 and 2.34 respectively. Though the contents of the elements such as nitrogen, potassium, phosphorus etc. are extremely low, the contents of the soil nutrients increase appreciably along with the progressing of the forest community succession.