Effects of different soil water contents on growth and dry matter allocation of four native tree species seedling on Loess Plateau were studied. The results showed that seedlings of Ostryopsis davidiana Decne. and Sophora viciifolin Hance had higher biomass under medium drought (50%-55% θ_f)) than that of under normal water (70%-75% θ_f)) , increasing 20.23% and 3.93% respectively, Quercus liaotungensis Koidz. and Acer stenolobum Rehd. var. megalophyllum Fang et Wu were on the contrary and their biomass d...
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