Growth Characteristics of Haloxylon ammodendron Plantation
Based on the investigations on growth situations of 1~10-year Haloxylon ammodendron plantation,the changing rule of growth indexes for Haloxylon ammodendron has been analyzed by use of spatio-temporal substitution method.The results show that as stand age increasing,crown width,tree height and ground diameter increase in the exponential equations and the above-ground biomass increases in the power function while the current annual increment in the binomial equation.There is significant positive correlations among tree height,ground diameter and above-ground biomass.In addition,the current annual increment peak of the branches is in the forth year.