Abstract
Using the rhizopods, the ecophysiological characteristics were compared among 6 tree species grown under 3 different water tables (40cm, 70cm and 90cm under soil surface), cuttings of Salix psammophila and S. matsudana planted for afforestasion in the Mu-us sandy land and seedlings of 4 native tree species in the Loess Plateau of China. The biomass and the root distribution of S. psammophila and S. matsudana changed markedly by different water table treatments whereas those of other 4 tree species showed very little changes. In the treatments, the growth of S. psammophila and S. matsudana were best under 70 cm and 40cm water table condition, respectively. The results suggest that growth in wet condition is fitter for S. matsudana than for S. psammophila and that both species are more sensitive to water table level than 4 tree species in the Loess Plateau.
