天津滨海新区湿地水质与底质质量特征

Urban Environment & Urban Ecology(2013)

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Abstract
通过取样分析对天津滨海湿地水体质量与底质特征进行考察,结果表明:以氮磷为代表的水体富营养化问题严重,除北大港水库和大港苏家园湿地水质较好,属Ⅳ类外,其它均属(劣)Ⅴ类;滨海湿地底质盐碱化严重,湿地pH范围为7.79~8.22,均为弱碱性;全盐量(TDS)除北大港水库为中度盐碱化(3 724 mg/kg)外,其它湿地TDS为4 792~22 980 mg/kg,均为重度盐碱化;相比前人研究结果,天津滨海湿地水体TN和TP有不同程度的改善,底质变化则不明显,均存在严重的氮磷污染。
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Key words
Tianjin,water quality,sediment,coastal wetland,environment quality
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