摘要
利用关系数据库理论中的二维关系模型,对海南部分市县沿海防护林相关指标进行管理,运用熵权法基本理论,对数据进行分析得出权重。对海南6个市县包括海口、文昌、琼海、万宁、陵水和三亚的沿海防护林防护效能进行了初步评价,同时还给出关于林带结构、群落层次结构和林龄结构等的数据分析情况。
By using the two-dimensional relational model in the relational database theory, the related indexes of coastal shelter forests in some cities and counties in Hainan are managed, and the basic theory of entropy weight method is used to analyze the data and obtain the weights. This paper makes a preliminary evaluation of the protection efficiency of coastal protective forests in six cities and counties of Hainan province, including Haikou, Wenchang, Qionghai, Wanning, Lingshui and Sanya, and gives the data analysis of belt structure, community hierarchy structure and forest age structure of these six cities and counties.
引文
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