Growth analysis of Leucaena leucocephala plantations with different densities
Stand density affects stand growth.The growth was studied by measuring diameter at breast height (DBH),tree height,crown width and clear bole height in young Leucaena leucocephala stands with different densities (1,2,4 and 8 trees/m2) to provide theory basis for density management of this species.The results showed that with increasing stand density,mean DBH and mean crown width of L.leucocephala stands decreased according to the equation of power exponent.Mean tree height decreased with increasing stand density,but difference in individuals with different densities was not evident as DBH.The height-diameter ratio of the L.leucocephala increased with increasing density,and both relationship can be simulated by a logarithm curve.There was a positive linear correlation between clear bole height and stand density.
NETL
NSTL
万方数据
维普
