广西北流市森林资源动态变化及评价

Dynamic Change and Evaluation of Forest Resource in Beiliu City,Guangxi Province

以2009年、2019年北流市森林资源调查数据为基础,从林地利用结构、森林面积、蓄积、林种结构、树种结构和龄组结构等方面分析10 a来森林资源动态变化规律。结果表明:经过10 a的发展,北流市林地面积、森林面积、活立木总蓄积、森林覆盖率分别提高5.60%、9.60%、110%、6.20%,森林资源总量进一步扩大;乔木林单产提高31.7 m^(3)·hm^(-2),林分质量进一步提升;纯林面积增加19.30%,林分结构更加单一化。并对森林资源进行评价,提出切实可行的发展对策。

According to the forest inventory data of Beiliu City in 2009 and 2019,dynamic changes of forest resource were analyzed on forest utilization, forest coverage, forest stock volume, forest category, tree species and stand age.The results showed that woodland area, forest area, living wood growing stock and tree coverage increased by 5.60%,9.60%,110% and 6.20% respectively, and the total amount of forest resource further expanded.The yield per unit area of arbor forest increased by 31.7 m^(3)·hm^(-2);and forest quality improved.Furthermore, pure forest area increased by 19.3%,tree structure became more simplified.Finally, forest resources were evaluated and feasible development countermeasures were put forward.