罗甸县森林资源动态变化

Dynamic changes of forest resources in Luodian County

以罗甸县2006年和2016年的森林资源调查为研究对象,分析了其森林资源的数量、结构等方面的动态变化。研究结果表明:从2006年到2016年,罗甸县有林地面积减少了0.46%,森林覆盖率提高了14.55个百分点,活立木蓄积增加了148.5%,乔木林单位面积蓄积增加了115.2%。随着经济社会发展,征占用林地增多,林地面积小幅下降;宜林地、疏林地转变为灌木林地、乔木林地;林龄面积结构变化,单位面积蓄积提高,蓄积随之增加。马尾松、杉木林、阔叶林(硬阔林、其他软阔林、桉树林)面积和蓄积都呈增长,其他针叶林面积和蓄积都减少。乔木林各龄组的面积和蓄积都呈大幅增长。经过十年的保护,从森林资源总量上看,森林资源面积、资源分布等达到了构建良性生态系统的基本要求,但生态环境恢复是一个长期而缓慢的过程,罗甸县森林资源保护工作任重道远。

Taking the forest resources survey data of Luodian County in 2006 and 2016 as the research objects,we analyzed the dynamic changes of the quantity and structure of forest resources of Luodian.The results showed that from 2006 to 2016,the area of forest land in Luodian decreased by 0.46%,while the forest coverage rate increased by 14.55%.The growing stock increased by 148.5%,and the arboreal forest stock per unit area increased by 115.2%.With the development of economy and society,the requisitioned and occupied forest land has increased,and the area of forest land has decreased slightly.The suitable land for forest and open forest land have been transformed into shrub land and arboreal forest.The age structure of the forests has changed;the stock per unit area has increased,thus the total stock has increased.The area and stock of Pinus massoniana,Chinese fir,and broad-leaved forests have increased,while the area and stock of other coniferous forests have decreased.The area and stock of each age group of arboreal forests have increased significantly.After ten years of protection,the area and distribution of forest resources have reached the basic requirements for constructing a benign ecosystem.But the restoration of ecological environment is a long-term and slow process,and there is still a long way to go for the protection of forest resources in Luodian County.