The beach ridge of tai wan has a special zonation of vegetation and has been a site of special scientific interest since 1979 大湾的滩脊长有一个独特的植被带，政府于1979年把该处划为具特殊科学价值地点。
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2 , by detailed studying of sedimentary microfacies , guan 3 - 6 beds mainly belong to high crooked fluvial deposition system , and some parts of guan 5 - 6 show plait fluvial deposition system features : detailed divided them into edge beach , center beach and natural levee etc . 9 deposition microfacies and beach ridge and groove microficies 2 、通过沉积微相多层次逐级细分研究，认为馆3 - 6砂层组主要属于高弯曲度曲流河沉积体系，馆5 6部分小层表现为辫状河沉积体系；并细分出了边滩、心滩以及天然堤等九种沉积微相，以及滩脊和凹槽等微微相。
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