广东省森林健康评估研究

Assessment of Forest Health in Guangdong Province

以森林蓄积生长量、乔木树种多样性、植物生物量、植被覆盖度、有机质含量、森林灾害程度作为指标,采用综合指数法,构建森林健康评估体系,并结合133个森林资源连续清查生态监测固定样地调查数据,评估广东省森林生态系统健康状况。结果表明,广东森林健康指数平均值为0.41,基本处于亚健康状况;天然林优于人工林,中龄林优于近成熟林;树种结构越复杂,森林健康指数就越高。

The system to assess the forest health was proposed based on the indicators, such as forest volume growth increment, tree species diversity, forest biomass, vegetation cover degree, organic matter content and forest disaster degree, by using composite index method. Forest health level of Guangdong was assessed, based on the continuous forest inventory data of 133 fixed ecological monitoring plots. The result showed that the average forest health index （FHI） was 0.41 indicated the forest health was on the sub-health level in the mass. To the average FHI, the natural forest was higher than the one of plantations, the middle age forest was better than the near-mature and the mature. The forest tree structure was more complicated and the FHI was much higher.