古贝壳堤
古贝壳堤-
黄骅古贝壳堤的近代地质意义
The Recent Geo-Significance of Huanghua chenier
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保护框架应该以河流廊道、古贝壳堤和牡蛎滩为基础，优先保护和恢复河流廊道的自然形态和生态功能，并和古贝壳堤和牡蛎滩一起构成网格状的保护结构。
The wetland protect framework should base on the river corridor , the ancient shell dike and oyster beaches , and give priority to protect and restore the natural shape of the river corridor and ecological functions .