北京市松山自然保护区森林健康评价研究

Forest health assessment in Songshan Nature Reserve of Beijing

应用SPSS16.0数学统计软件,采用定性与定量相结合的方法确定森林健康评价指标体系,包括完整性指标、稳定性指标和可持续性指标3大类7个指标,使用层次分析法赋予指标权重,基于ArcGIS9.2对北京市松山自然保护区120个小班进行森林健康评价。结果表明,松山自然保护区的森林大部分处于健康状态,面积为2845.77hm2,占林场总面积的56.15%,主要由天然阔叶林和人工针叶林组成。必须采取切实可行的森林经营管理措施,提高经营管理水平,才能发挥森林更大的综合效益。

Based on the combination of qualitative analysis and quantitative analysis,forest health assessment indicator system was established by SPSS16.0 software.The system includes integrated indicators,steady indicators and sustainable indicators.Step analysis method was adopted to confirm the weight of each indicator,120 subcompartments were assessed using ArcGIS9.2 for forest health in Songshan Nature Reserve.Results show that most of these forest subcompartments are in healthy condition in the nature reserve.It accounts for 56.15% of the total area.The main components are natural broad-leaved forest and artificial conifer forest.Feasible measures must be taken to improve forest management level,and to produce comprehensive benefit of forest.