The sandy soil that upland lime calcium pledges earth and fluvial two sides reach alluvion, sandy loam 4 kinds big.
丘陵石灰钙质土和河流两岸及沙洲的沙土、沙壤土
类。
积层（alluvium 的复数形式）The sandy soil that upland lime calcium pledges earth and fluvial two sides reach alluvion, sandy loam 4 kinds big.
丘陵石灰钙质土和河流两岸及沙洲的沙土、沙壤土类。
There are vast non-consolidated alluvia deposits freshly formed in estuary area of Yangtze River and nearby coastal area.The deposits contribute to land subsidence.
摘要长江河口滨海
区广泛分布有量的填土，由于其形成时间短，具有欠固结特性，因此
沉降影响较。
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