这些研究成果为探讨物质输入、成岩作用和河口环境污染状况等提供了重要的信息。
These study results have provided important information of material input, diagenesis and estuarine environment pollution.
塞文河口是鸟类的栖息地，而大型水坝会在很大程度上破坏或毁坏河口，这同样也会破坏河流中鱼群的生态环境。
The Severn estuary is an important habitat for birds; large barrages would destroy or damage much of it, as well as interfere with fish stocks in the river.
不幸的是，这种功能使河口对环境污染非常敏感。
Unfortunately, this function also makes estuaries very sensitive to environmental pollution.
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