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首页> 外文会议>2011 International Symposium on Water Resource and Environmental Protection >Temporal and spatial distribution of total nitrogen, total phosphorus and COD in the largest shallow lake of the upper Yellow River
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Temporal and spatial distribution of total nitrogen, total phosphorus and COD in the largest shallow lake of the upper Yellow River

机译：黄河上游最大浅水湖中总氮，总磷和化学需氧量的时空分布

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摘要

Concentrations of total nitrogen (TN), total phosphorus (TP) and Chemical Oxygen Demand (COD) were studied by using the geostatistical analysis module of ArcGIS in Wuliangsuhai Lake which was based on the monitoring data collected from 2006 to 2010. The results indicated that the contamination of TN, TP and COD were very serious, and the water quality was beyond the limition of the fifth category national lake water quality standard. Wuliangsuhai Lake is in a serious eutrophication and the contamination is obviously deeper than other lakes. Changes of the concentrations of TN, TP and COD are very little from 2006 to 2010. But all the minimum value of TN, TP and COD arised in 2008. Then the concentration distribution of TN and TP showed gradually decreasing trend from north to south in last 5 years. The minmum value of COD appears at the middle of Wuliangsuhai Lake and is higher then the both sides of the lake. In a word, the status of Wuliangsuhai Lake eutrophication is very serious.
机译：利用2006-2010年的监测数据，利用ArcGIS地统计学分析模块对乌梁素海的总氮，总磷和化学需氧量进行了研究。结果表明：总氮，总磷和化学需氧量污染非常严重，水质超出了第五类国家湖泊水质标准的限制。五粮素海湖泊严重富营养化，其污染明显比其他湖泊更深。从2006年到2010年，TN，TP和COD的浓度变化很小。但是TN，TP和COD的所有最小值都出现在2008年。最近5年。化学需氧量的最小值出现在乌梁素海的中部，高于湖泊的两侧。总之，五粮苏海富营养化状况十分严重。

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