为探讨阔叶树与红松形成多大比例的针阔混交对红松和全林生长及林分稳定有利,应用二因子三水平拉丁方设计对伊春林区21～27龄的红松与伴生阔叶树在不同密度下的混交比进行了定位观测。6年研究表明,阔叶树比重在15％～45％之间,其比重越大,红松及全林的生长量越小。在相同立地条件下,85％红松+15％阔叶树的林分蓄积年生长量比55％红松+45％阔 In order to investigate the proportion of broad-leaved and Korean pine coniferous and broad-leaved mixed growth of Pinus koraiensis and whole forest and the stability of the stand, two-factor three-level Latin square design of 21 to 27 years old in the forest of Korean pine and associated broad-leaved tree in Mixed density under different density were observed. Six years of research have shown that the proportion of broad-leaved trees is between 15% and 45%. The larger the proportion, the less the growth of Korean pine and whole forest. Under the same site conditions, the annual growth volume of 85% Korean pine + 15% broadleaf trees was 55% more than Pinus koraiensis + 45%