7FISHER R F. Response of semi mature slash and loblolly pine plantations to fertilizations with nitrogen and phosphorous[ J]. Soil Sci Soc Am J, 1980,44(4) :850-854. 被引量:1
8ZOBLE B J, VON BUIJTENEN J P. Wood variation, its cause and control [ M ]. Berlin : Springer-Verlag, 1989:349. 被引量:1
9ROTHSTEIN D E, ZAK D R, PREGITZER K S. Kinetics of nitrogen up-take by Populus tremuloides in relation to atmospheric CO2 and soil nitrogen availability [ J ]. Tree Physiology, 2000,20 : 265 -270. 被引量:1
10HEILMAN P F, XIE F G. Effects of nitrogen fertilization on leaf area, light interception, and productivity of short-rotation Populus trichocarpa x Populus deltoids hybrids [ J ]. Canadian Journal of Forest Research, 2005,24 ( 1 ) : 166-173. 被引量:1