金沟岭林场落叶松人工林健康评价研究

Health Assessment of Larch Plantation Forests in Jingouling

以吉林省汪清县金沟岭林场落叶松人工林为研究对象,采用复合结构功能指示法,从生态属性、外界干扰和经营目标三个方面入手,根据样地调查及二类调查数据,依据专家咨询法对健康评价指标进行筛选,用层次分析法赋予指标权重,确定指标阈值,构建了不同龄组的落叶松人工用材林健康评价指标体系,对研究对象进行健康评价和分析。结果表明:评价小班总面积768.8hm2,其中健康小班占总面积26.92%,亚健康小班占54.25%,不健康占18.83%;近熟林处于健康状态,中龄林和成熟林处于亚健康状态,建议加强对中龄林和成熟林经营管理,以提高森林健康水平。

The health status of larch plantation located in Wangqing Conty,Jilin Province was evaluated by using complex structure and function indication method.From the aspects of forest structure,external interferences,and management objectives,based on the sample-plot survey of larch plantation forests and the data of the second type of forest resource survey,we screened indicators by the method of expert consultant.Analytic hierarchy process was adopted to determine weights and thresholds.Index systems for the health evaluation were established.The results showed that the total area was 768.8hm2,in which 26.92% were healthy,54.25% were sub-healthy,and 18.83% were unhealthy.Both the half-mature larch plantation and mature larch plantation were sub-healthy,while the near-mature plantation was healthy.To improve the health situation,the management of half-mature larch plantation and mature larch plantation should be strengthened.