作　　者： ;

机构地区： 广州地理研究所

出　　处： 《地理学报》 1990年第4期467-474,共8页

摘　　要： 华南沿海沙坝为中、晚全新世形成，分为六个形成期。分析了沙坝的粒度和沉积寺征及其分布规律。提出华南全新世沙坝的形成与砂源丰富、波浪较强、海平面已与现今相近、勾造运动相对稳定、季风气候等条件有密切关系。认为沙坝对环境的主要不良影响是：1．产上风沙灾害；2．烂湾坝阻塞或淤浅航遭。为此提出营造针阔叶混交防风林及配种草本、灌木向意见。这些沙坝的主要有利因素是：且．含丰富的砂矿：2．形成漏湖式港湾；3．提烘发展农木牧渔业的广阔空间；咯．可作为建设经济特区。沿海开发区和发展海滨旅游的土地资源。 The sand bars along the coast of South China were formed in middle and late Holocene according to 105 dating data. they, may be grouped into 6 periods. Having analysed the grain size and sedimentary characteristics of the bars in each period, and the regular distribution of littoral bar, baymouth bar, tombolo and offshore barrierbar, the auther holds the view that the formation of Holocene bars along the coast of South China is closely related to abundant source of sand, powerful wave, sea-level close to the present, stable neotectonic movement and the monsoon. The major harmful effects of the bars are: 1. damage caused by wind-drift sand, 2. the baymouth bars woud block the channels. This paper offers a proposal of inter-planting sand-fixing trees consisting of conifer and deciduous with herbaceous and shrub. The major favourable factors are: 1. the abundant placer resources, 2. the multitudinous bar-lagoon bars, 3. a wide space for the development of agriculture, forestry, stock raising and fish-culture, 4. a valuable, land for the exploitation of special economic zone, economic development district and seaside tourism.

关 键 词： 沿海 沙坝 全新世 海岸 改造 利用

领　　域： [水利工程]