威海市双岛林场黑松海防林森林资源质量状况评价

Evaluation on Forest Resource Quality of Pinus thunbergii Coastal Shelterbelt in Shuangdao Forest Farm of Weihai City

  • 摘要: 以威海市双岛林场黑松海防林为研究对象,利用层次分析的方法,构建森林资源质量状况评价指标体系;通过各评价指标合成权重乘以实测值对应的等级赋值,然后相加得出森林小班的森林资源质量状况指数,再以面积加权平均法推算出森林经营单位的森林资源质量状况指数。结果表明:自然度、优势树种组成比例、土壤厚度3项指标对森林资源质量状况存在重要影响,贡献率分别为0.1292、0.1195和0.1127;而研究对象的前2项指标得分相对较低,从而降低了评价结果,其森林资源质量状况指数为0.61,评价等级为“良”。

     

    Abstract: Taking Pinus thunbergii coastal shelterbelt forest in Shuangdao Forest Farm of Weihai City as the research object, the evaluation index system of forest resource quality was constructed by using the method of analytic hierarchy process. The weight of each evaluation index was multiplied by the corresponding grade assignment of the measured value, and then the forest resource quality index of the forest subcompartment was obtained by adding, and then the forest resource quality index of the forest management unit was calculated by the area weighted average method. The results showed that naturalness, proportion of dominant tree species and soil thickness had important impacts on forest resource quality, and the contribution rates were 0.1292, 0.1195 and 0.1127, respectively. The scores of the first 2 indexes were relatively low, which reduced the evaluation results. The forest resource quality index was 0.61 and the evaluation grade was 'good'.

     

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