摘要
以33年生米老排伐桩为研究对象,分析了不同伐桩基径(≤30cm、30<X≤40cm、40<X≤50cm、>50cm)及伐桩高度(≤5cm、5<Y≤10cm、10<Y≤20cm、>20cm)对其萌芽植株数量、胸径及高度等生长状况的影响。结果表明,4个不同的伐桩基径级之间,30<X≤40cm其萌芽植株数量、胸径及高生长较大;伐桩基径对其萌芽植株数量影响差异显著,但对胸径及高生长影响差异不显著。伐桩高度在≤5cm和5<Y≤10cm时,其萌芽植株数量、胸径及高生长较大,且随着伐桩高度的增加而降低。
By taking the stumps of 33 a Mytilaria Zaosensis as the research objects, the effects of different stump basal diameters （≤30,30〈X≤40,40〈X≤50,〉50 cm） and heights （≤5,5〈Y≤10,10〈Y≤20, 〉20 cm） on DBH and height of stump sprouting were analyzed. Among four stump basal diameters,the number,DBH and height of stump sprouting were the biggest in the diameter range of 30〈X≤40 cm. The stump basal diameter demonstrated significant effects on the number of sprouting, while the influences of DBH and height of the stump were not significant. When the stump height was between ≤5 cm and 5〈Y≤10 cm,the number,DBH and height of stump sprouting were the biggest,and decreased with the stump height.
出处
《西北林学院学报》
CSCD
北大核心
2016年第6期153-156,共4页
Journal of Northwest Forestry University
基金
国家林业公益性行业科研专项(201204304-06)
中国林业科学研究院热带林业实验中心主任基金(RL2015-02
RL2015-03)
关键词
米老排
伐桩
伐桩直径
伐桩高度
萌芽更新
人工林
Mytilaria laosensis
stump
stump diameter
stump height
sprout regeneration
plantation
