Correlation analysis of Aeluropus littoralis var.sinensis population density and biomass with its sexual reproduction characteristics 典型盐地植物小獐毛的生态学研究 Study on Physiological Mechanisms of Aeluropus littoralis var. sinensis Debeaux to Salt Resistance Comparative Studies on the Saline-Alkali Resistant Characters in Puccinellia chinampoensis and Aeluropus littoralis var. sinensis of Alkalization Meadow in Songnen Plain NEW TAXA OF TRIPOGON AND AELUROPUS Effects of Salinity on the Contents of Osmotica of Monocotyledenous Halophytes and Their Contribution to Osmotic Adjustment Physical-chemical Properties of Soil,C and N of Three Typical Communities in Tianjin Coastal Wetland