沿海水域通常有更多的悬浮物质，原因为河流的输入，水底翻起的物质，浮游生物的增加。
Coastal waters generally have more suspended material due to river input, material stirred up from the bottom, and increased plankton.
此期间，河流带入湖泊的泥沙少，洪湖拥有一个开阔、稳定、浮游生物较多的淡水湖泊环境。
The Honghu lake had a open, stable environment enriched in plankton diatoms, with less sediment from the river during this period.
此期间，河流带入湖泊的泥沙少，江汉平原拥有一个开阔、稳定、浮游生物较多的淡水湖泊环境。
It was suggested that the lakes in the Jianghan plain were of open and stable fresh water lake environments rich in planktons and with small amount of clay carried by rivers during this period.
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