Effeets of Varied Diameter and Height of Stump on Sprout Regeneration of Mytilaria laosensis Plantations in Daqingshan
By taking the stumps of 33 a Mytilaria laosensis 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.