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引水对三垟湿地水体总磷影响的生态模型研究

Keywords: 湿地,水体污染,营养盐,富营养化,生态模型

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Abstract:

采用STELLA软件,构建了三垟湿地水体TP随时间变化的模型并通过此模型模拟了消除外源污染前后引水水体TP的变化。结果表明,内外污染源共存时,当前水体TP会进一步增加,水质继续恶化,即便引入较好的水质,TP含量也将继续增加,富营养化状况得不到彻底解决;若消除外源污染,对当前水体TP含量的迅速增加起到一定的减缓作用,但因内源污染的作用,引入不同的水质,TP仍会增加。因此,仅通过引水来解决三垟湿地水体富营养化问题的作用是有限的。

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