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本试验主要是在立地条件、管理水平相对一致的情况下,研究厚荚相思、桉U6的4种不同混交林,并分别跟纯林进行比较,研究其生长情况。试验表明各林分的胸径、树高、单株材积和单位面积林分蓄积量之间的差异都是极显著。而且混交林的林分蓄积高于纯林,在混交林分中桉U6所占比例越大,林分的总蓄积量越大。因此,应该提倡营造混交林,并适当加大桉U6所占的比例,以提高混交林的林分产量。
In this experiment, four different mixed forest of Acacia crassicarca and Eucalyptus U6 were studied under the condition of site conditions and management level were the same, and compared with pure forest respectively to study their growth. The results showed that the difference in DBH, tree height, stand volume per plant and stand volume per unit area of each stand was significant. Moreover, the stand volume of mixed forest was higher than that of pure forest. The greater the proportion of U6 in the mixed forest, the greater the total volume of stand. Therefore, the promotion of mixed forests should be promoted and the proportion of Eucalyptus U6 should be appropriately increased so as to increase the yield of mixed forest.