澳门的海滩资源优势及其开发利用——澳门发展路向研究之三

THE EXPLOITATION OF THE BEACH RESOURCES OF MACAO

从宏观上论述了珠江口伶仃洋河口湾的动力特性， 分析了澳门附近海区独特的水流结构。指出澳门水域位于伶仃洋西部河流型河口段， 地处具有强劲径流的洪湾水道和伶仃洋落潮流交汇处， 泥沙大量沉降， 浅滩发育， 滩涂资源丰富。文中根据珠江河口区海滩围垦适宜的填海高程， 阐述了澳门地区两大类七个亚类海滩资源的特征、面积、分布和开发利用评价。认为结合口门治导和港航治理， 合理填海造地是振兴澳门经济的必由之路。文中结合经济和城市发展， 提出６ 个海滩主题开发区域。

The dynamic characteristic of the Pearl River estuary are discussed, and the flow structure in the sea area around Macao is analysed.Macao lies on the west of the estuary,where abundant silt is available. As the sea area is at the confluence of the Hongwan waterway and the ebb tide,the velocity of the flow is reduced and the sedimentation enhanced.As a result,shallow beaches fast develop.According to the experience from the reclamation of the beaches along the Pearl River mouth,the author eonsiders that an elevation of -1 0～-1 5 m would be suitable for sea-filling and land-marking at the beaches of Macao.The beaches of Macao can be classified into two types and seven subtypes,their features,areas and distribution are described,and all types and subtypes of the beaches are evaluated for development.Combined with the management of the river mouths and water ways,and the control of water pollution,the rational exploitation of the beach resources is significant for the economic development of Macao. Six thematic development zones of the beaches are suggested.