Evolution of community structure of aquatic macrophytes in East Taihu Lake and its wetlands STUDIES OF AQUATIC MACROPHYTES IN SALINE-ALKALINE PONDS Ecological security assessment of intro-ducing aquatic macrophytes ECOLOGICAL STUDIES ON AQUATIC MACROPHYTES IN LAKE DONGHU, WUHAN Ⅱ.THE DYNAMICS OF AQUATIC MACROPHYTES AND PROPERTIES OF WATER BODY IN SUBLAKE HOUHU Environmental Factors and Community Characteristics of Aquatic Macrophytes in Taizi River Tributaries of Liaoning Province STUDIES ON PRODUCTIVITY OF HYDRILLA VERTICILLATA ROYLE Community characteristics in Qingyihe River basin of Xuchang section and their relationships with environmental factors.