光皮桦不同混交模式造林效果研究

Afforestation Effect of Different Mixed Patterns of Betula luminifera

对11 a生光皮桦不同混交模式造林效果进行试验研究。结果表明:4种混交模式中,光皮桦平均胸径、平均树高、平均单株材积及高径比、造林保存率的差异均达极显著水平,单位面积蓄积生长差异达到显著水平。其中,以光皮桦×杉木混交林效果最好,其余依次为光皮桦×福建柏、光皮桦×木荷、光皮桦×马尾松。在混交林分总蓄积量上,光皮桦×杉木>光皮桦×福建柏>光皮桦×马尾松>光皮桦×木荷,但差异不显著。

Experimental study on the afforestation effect of different mixed patterns of 11 years old Betula luminifera was carried out in this paper.The results showed that the difference of mean DBH,height,individual volume and the ratio of height to diameter,the plantation survival rate of four B.luminifera mixed mode were significant,growth difference of volume per unit area also reached to significant level.Among them,the effect of mixed forest of B.1 uminifera × Cunninghamia lanceolata was the best one,and followed as B.lumenifera × Fokienia hodginsii,B.luminifera × Schima superba,B.luminifera ×Pinus massoniana.The difference of total volume in the mixed forest was not significant which followed order as B.luminifera × Cunninghamia lanceolata ＞ B.luminifera × Fokienia hodginsii ＞ B.luminifera × Pinus massoniana ＞ B.luminifera × Schima superba.