摘要
通过采集3种典型营养级别湖泊沉积物,对其营养盐的释放规律进行研究.结果表明:在碱性条件下,富营养化湖泊沉积物中总磷、总氮释放量达到峰值;在中性条件下,富营养化湖泊沉积物中总有机碳释放量最大;在厌氧条件下,富营养化湖泊沉积物中氮、磷、COD的释放量最大.在平行实验条件下3个湖泊中的重度富营养化湖泊的氮、磷、COD的释放量最大.
Through collecting the three kinds of typical nutrient levels of lake sendiments,the rule of nutrient release is studied.The results show under the alkaline condition,the largest amount of total nitrogen（TN） and total phosphorous（TP） release in the eutrophic lakes appear;under the netural condition,the total organical carbon（TOC） has the largest release in the eutrophic lakes.under the anaerobic condition,the highest releases are nitrogen,phosphorous and COD.Under the parallel experimental condition,the severe entrophic lake of the three lakes has the largest release of nitrogen,phosphorous and COD.
关键词
营养盐
释放规律
富营养化
nutrient salts
rule of release
eutrophication
