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中文摘要：
通过2014—2015年期间4次对呼伦湖水质进行监测,评价不同季节水体中TN、TP和Chla的时空分布特征及水体的富营养化状态,并分析影响水质变化的主要因素。结果表明,4个季节中呼伦湖水体中TN、TP质量浓度超标较严重,Chla质量浓度随季节变化明显。空间分布规律为TN由湖四周向湖心扩散再到四周;TP春、夏季基本保持稳定,秋—冬季由湖心向四周转移;Chla呈现由南—北—东—东北的变化趋势。呼伦湖春、夏、秋季呈现轻度富营养化,冬季呈现中营养化。水体主要受富营养化、盐化和有机物污染控制。
英文摘要：
Water quality of Hulun Lake was monitored four times from 2014 to 2015 for evaluating TN,TP and Chla＇s seasonal spatial and temporal distribution characteristics and lake eutrophication, and analyzing the main impact factors. The results showed that the concentration of TN and TP were seriously beyond the standard at all seasons. Chla＇s concentration revealed significant seasonal variation. TN diffused from around the lake to the middle and then back to around. TP remained stable during spring and summer, and diffused from the middle to around of the lake in autumn and winter. Chla varied in the trend of south- north- east- northeast. The lake was slightly eutrophicated in spring, summer and autumn but moderately eutrophicated in winter. The water quality of the lake was mainly affected by eutrophication, salinization and organic pollutants.
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