结构化森林经营技术要点与应用

利用结构化森林经营技术对蛟河林业实验区管理局所属红松阔叶林进行经营,并对经营前后林分的基本特征与状态特征进行比较分析,结果表明:郁闭度由0.85下降到0.80,林分密度由1 186株·hm-2下降到992株·hm-2;林分平均角尺度为0.490,仍为随机分布;林分平均混交度为0.792,较经营前略有上升;直径分布仍为倒"J"型。顶级树种红松的相对显著度明显上升,由经营前的8.26%上升到经营后的9.57%,优势度从经营前的0.230上升到经营后的0.264;珍贵树种黄檗及主要伴生树种的优势度均呈上升状态。

The essential and application of structuring forest management technology

The Korean pine broad-leaved forest which belonged Forestry Experimental Area Management Bureau of Jiaohe was managed by using structuring forest management technology .Its essential feature and state feature of front and back were compared and analyzed .The result showed that the canopy density descended from 0.85 to 0.80.The stand density descended from 1 186 per hectare to 992 per hectare .The average angle scale of forest stand which was still random distribution was 0.490.The average mingling of forest stand which ascended slightly was 0.792.The diameter distribution was still reverse “J”.The significance of top seeds of trees Pinus koraiensis ascended from 8.26%to 9.57%apparently.The degree of dominance ascended from 0.230 to 0.264.The degree of dominance of precious plant species Phellodendron amurense Rupr.and associated tree species were all in ascendant .