【摘要】 <正> 我国海域辽阔,海岸线绵长,海涂资源十分丰富,据初步估算,理论深度基准面以上的潮间带海涂面积约2997万亩。海涂主要分布于大河河口附近和海湾内,是发展海涂围垦、建立海产品养殖基地、开辟工业用地及港口城市用地、发展制盐工业及轻工业原料基地的良好场所。为了能合理地开发利用及保护海涂资源,必须对海涂自然环境、利用现状、动态变化及生态平衡等情况,作经常性的定期观测。若用常规方法调查,由于这一地带野外作业难更多还原

【Abstract】 There is about 30 million Mu of tidal wetland in our country. Remote sensing can provide an advanced and useful technique for an investigation of tidal wetland. Color infrared aerial photography has optimal effect. On the photograph the determination of the types of tidal wetland depends mainly on hue. Besides, the principle of coastal dynamic geomorpho-logy and the relations among sediment, geomorphy and vegatation should be taken into consideration. By means of color infrared aerial remote sensing, different types of tidal wetland in the Shanghai section of the Ha ngzhou Bay may be correctly determined. In comparison with conventional investigation methods, color infrared aerial photography not only has higher precision, but also will save time, labor and cost. So it has broad prospects for application.更多还原