【摘要】 本试验是1962年—1980年在辽宁省东部阔叶红松林区的次生林中进行的。在阔叶低产林中,实行择伐改造以后,用红松裸根苗在林冠下进行了更新造林。十八年的试验结果表明,用这种方法改造了的林分较没有改造的林分,提高了材积总生长量的1—2倍。更多还原

【Abstract】 During the period of 1962—1980,experimental planting of naked-root edseedlings of Pinus koraiensis under the canopy of low quality broadleavedsecondary growth has been done after selective felling. It has been found that the total volume increment of the treated standsis 1—2 times higher than that of the untreated stand after 18 years.更多还原