关键词: 乳源木莲, 间伐措施, 生长特性

Abstract: The growth of Manglietia yuyuanensis in mixed plantations of China fir and Manglietia yuyuanensis was varied significantly by different thinning measures. It was found that 9th year after planting was the optimal time for the first thinning and timely thinning could lengthen the prime stage of Manglietia yuyuanensis growth and increased the increment of DBH, height and volume. For example, 17 year-old trees were still in fast-growing period. For first thinning at 12th year after planting, the stand density was higher than that at 9th year, the growth was inhibited and the fast growing period was shortened. The proper time for first thinning and proper stand density were important for the effective management of mixed plantations.

Key words: Manglietia yuyuanensis, thinning measures, growth characteristics