Acid Buffering Capacity of Forest Litter from Some Important Plantation and Natural Forests in South China Effects of NaCl Stress on the Inorganic Ion Contents in Atriplex undulata Roots and Leaves Studies on the Adaptability and Tolerance of Puccinellia tenuiflora to Salinity in the Salinized Grassland in Songnen Plain Effects of Salt and Water Stresses on Osmotic Adjustment of Suaeda salsa Seedlings Effect of exogenous NO on the growth and inorganic ion content of Festuca arundinacea seedlings under Pb2+ stress A study on the characters of content of inorganic ions in salt-stressed Suaeda salsa STUDIES ON THE ADAPTAEITY AND TO LERANCE OF LEYMUS CHINENSIS TO SALINITY IN SALINIZED GRASSLAND IN THE SONGNEN PLAIN EFFECT OF LEAD POLLUTION ON GROWTH, INORGANIC ION DISTRIBUTION AND Pb ACCUMULATION OF Festuca arundinacea Effects of Water Stress on Biomass and Osmosis-regulating Substance Accumulations in Nitraria sphaerocarpa Seedlings