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本文就绥棱林业局红皮云杉(PiCea—Kraensis)人工林的实践经验,讨论红皮云杉生态学特性和生物学特性,以便更好地推动红皮云杉人工更新造林工作。一、红皮云杉生态学特性1.光照:天然红皮云杉林是在一定庇荫条件下更新和生长起来的,有很强的耐萌力,但在营造人工林时进行林冠下造林或在一定庇荫度下造林,虽然也能成活、成林,但较之全光下造林生长缓慢。实践证明红皮云杉在全光条件下生长良好,发育正常,比林冠下生长速度快,以半阳坡最好,阳坡中等,阴坡半阴坡最差。20年生优势平均高半阴坡为7.61m、阳坡为6.57m,而阴坡、半
In this paper, the practical experience of PiCea-Kraensis plantation in Suailian Forestry Bureau was discussed in order to discuss the ecological characteristics and biological characteristics of Picea koraiensis so as to better promote artificial reforestation of Picea koraiensis. First, the ecological characteristics of red spruce 1 light: the natural red spruce forest is under certain shading conditions renewal and growth, a strong resistance to vigorous force, but in the artificial plantation afforestation or under canopy Afforestation at a certain degree of shelter, although it can survive, into a forest, but slower than the total light afforestation growth. Practice has proved that the red spruce grew well under all-light conditions, normal development than under the canopy growth rate to the best semi-sunny, sunny sunny, shady half-shady slope worst. The 20-year-old advantage is averagely high on the half-shady slope of 7.61m, on the sunny slope of 6.57m, and on the shady slope of half