江苏省2005—2015年四旁树资源动态分析

Dynamic analysis of four side tree resources from 2005 to 2015 in Jiangsu Province

依据江苏省森林资源连续清查第7—9次复查数据,从径阶组、立木类型、主要树种、四旁树覆盖面积等方面,对江苏省近期四旁树动态进行了分析,指出2005—2015年江苏四旁树检尺株数呈增长态势、大四旁株数蓄积倍增、小四旁基本稳定、杨树杂阔是四旁树的主体、四旁树在全省具有不可替代的地位等结果,并提出抓紧开展森林资源普查等建议。

The dynamics of four side trees in Jiangsu Province were analyzed in this article from such four aspects as the diameter-class group, the type of stumpage , the main tree species and their cover area, based on the data of the7-9th Continuous Forest Inventory of Jiangsu Province,and it was pointed out that from 2005 to 2015,the number of four side treeshad a tendency of increase,the number of the big four side trees was doubled,the number of the small four side trees wasbasically stable,poplar and mixed broadleaf trees were the main species. As poplar played an irreplaceable role in four sidetrees in Jiangsu Province,and it was suggested that an investigation of forest resources should be carried out immediately.