不同间伐强度对水曲柳次生林胸径生长的影响

Effects of Different Thinning Intensities on Growth of DBH for Fraxinus mandshurica Secondary Forest

间伐是培育森林的重要手段,其对林分生长具有重要影响。通过实施不同间伐强度,研究水曲柳次生林胸径的影响变化。结果表明:在无显著差异的样地中,通过抚育间伐后的培育,水曲柳胸径生长产生了显著性差异,其中采伐强度为20%的水曲柳林胸径生长量与其他采伐强度有显著性差异,生长量最高。

Thinning,which is an important means of cultivating forest,has important effect on the growth of stand. Through implementing different thinning intensities,influencing changes of DBH for Fraxinus mandshurica were studied.Result shows that there was no significant difference in the sample area,through breeding after tending thinning,DBH growth of Fraxinus mandshurica produced significant differences;the growth of DBH for Fraxinus mandshurica with the cutting strength being 20% have significant differences with other cutting intensity,and the growth is the highest.