基于GIS的森林资源变化研究

以黑龙江省汤旺河林业局部分区域森林资源为研究对象,以1968年和2004年森林分布图、小班数据库和其他数据资料为基础,以地理信息系统为技术支持,分析林地资源的数量、种类、空间分布及其森林资源的结构变化,在此基础上,调整恢复合理的森林结构,实现森林资源的永续利用。研究结果表明:有林地和非林地面积增加;针叶林所占比例减少,阔叶林增加;森林资源的结构不太合理,中龄林和近熟林面积占据较大比例。

Study on Forest Resources Change Based on GIS

Taking the forest resources of parts of Tangwanghe forestry bureau in Heilongjiang province as example,based on the forestry distribution map of 1968 and 2004, subcompartment database and the other data,with the support of geographical information system,this paper analyzed the amount,type,spatial distribution and changes of resources construction of the forest.According to the result,the forest construction could be adjusted and renewed.At last,the sustained yield of forest resource could be carried out.The result showed that: the land of forest and no-forest was increased,the proportion of coniferous forest was decreased,the proportion of broadleaf forest was increased,the forest resources construction was not reasonable,the proportion of immature and near-mature forest was lager.