"Channel-ridge"system of southern radiate sand ridges and stability of Xitaiyangsha
辐射沙洲南翼“水道-沙洲”系统与西太阳沙的稳定

On base of the analysis of the trend of radial sand ridges and power-sand circumstance of the sea area,the macroscopical background of the evolvement of Xitaiyangsha is discussed.The data of remote sensing,underwater-fixed profile,and terrain are used to analyze the facial and submarine terrain changes of Xitaiyangsha by the test of the sediments under action of wave and together actions of wave and tide,the dynamics cause of the erode and silt change of the sea area of Xitaiyangsha are analyzed.The factor and law of the evolvement of Xitaiyangsha are also studied from the angle of system.