湖北林业科技

Investigation and Study on the growth of 15-year-old pure Chinese fir forest on different slope positions. The results show that: Slope position has significant influence on growth indices of Chinese fir pure forest; The average DBH, tree height, crown width and other growth indicators of the stand were consistent in the following order: downhill position ＞ mid-slope position ＞ uphill position. The growth of DBH and tree height between slopes showed the same pattern: There is no significant difference between the upper and middle slope positions, the difference between the upper and the lower slope positions is very significant（p＜0.01）, and the difference between the middle and the lower slope positions is very significant（p＜0.01）; There is also a very significant difference between different slope positions in canopy growth（p＜0.01）.