【摘要】 以矿山湿地(MW-1和MW-2)为对象,对水体有机物(化学需氧量COD和生化需氧量BOD5)及营养盐(总氮TN,氨氮AN和总磷TP)的时空变化特征进行了研究,通过1年的监测分析发现:不同矿山湿地水体水质差异明显,其中MW-1的COD和BOD5质量浓度分别为8.91 mg/L和5.81 mg/L,TN,AN和TP质量浓度分别为0.57mg/L,0.30mg/L和0.06mg/L;MW-2的COD和BOD5质量浓度分别为16.80mg/L和10.21mg/L,TN,AN和TP质量浓度分别为1.19mg/L,0.58mg/L和0.25mg/L;矿山湿地水体水质季节性变化显著(p<0.01);富营养化评价分析发现,矿山湿地水体富营养化程度季节性变化显著,MW-1富营养化程度低于MW-2,总体富营养化程度从小到大依次为冬季、秋季、春季、夏季.更多还原

【Abstract】 Tow Mine-Wetlands(MW-1and MW-2)have been sampled for one-year study of the characteristics of water quality(COD,BOD5TN,AN and TP)seasonally and spatially.The results indicate that the characteristics of water quality in MW-1and MW-2cause significant differences.COD and BOD5average concentrations are 8.91mg/L and 5.81mg/L,TN,AN and TP average concentrations are 0.57mg/L,0.30mg/L and 0.06mg/L respectively in MW-1,while the average concentrations of COD,BOD5,TN,AN and TP in MW-2are 16.80mg/L,10.21mg/L,1.19mg/L,0.58mg/L and 0.25mg/L respectively.The characteristics of water quality in seasonally cause significant differences(p<0.01).Assessment results of eutrophication indicate that tow mine wetlands reaches are in the stage of eutrophication,the level of eutrophication in MW-1is lower than it in MW-2,while the level of eutrophication in different season is Winter<Fall<Spring<Summer.更多还原