| growth responses of picea mongolica seedlings to defoliation rate. | picea mongolica w. d. xu. is an endemic species in china. the spruce forest is only found in semi-arid habitat in inner mongolia autonomous region of china. based on the simulative defoliation experiment, it was proved that picea mongolica seedlings had the compensatory and overcompensatory effects under the certain defoliation rate. the results of variance analysis on growth indexes showed that in pm i (natural regeneration seedlings under picea mongolica forest), the differences of h1 (height ... | 2005 | 16295895 |