Abstract:
A research on two kinds of emergent plants using a way of transplant was conducted in the lakeshore restoration demonstration zone of Lake Wulihu, with the purpose to investigate the effect of three substrate types and two cultivated ways onthe growth of Phragmites australis Trin. and Typha angustifolia L.. Without considering the influence of wave, Phragmites australis Trin. got a higher survival rate on the hard soil than immature brown clay and immature brown clay covered with lake mud. Increasing shoot height and developing the number of tillers were two of the methods that could increase above-ground biomass. The former contributed more to the Typha angustifolia L. and the latter was significant for Phragmites australis Trin.. The result indicated that, compared with filled back with soil from the substrate, filled with lake mud was more suitable to Phragmites australis Trin.. With a more powerful root system, Typha angustifolia L. had a higher absorbing capability for the nutrients, and thus its survival and growth were not correlated with substrate condition and backfill soil during experimental time. Apart with each other and cultivated separately, Phragmites australis Trin. was inferior in developing its survival rate,daily growth rate and shoot height than Typha angustifolia L.. In despite of larger number of shoots, it was proved not to be a suitable way to plant Typha angustifolia L. separately.