• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>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
【24h】

Temporal and spatial distribution of total nitrogen, total phosphorus and COD in the largest shallow lake of the upper Yellow River

机译：上黄河最大浅湖中总氮，总磷和鳕鱼的时间和空间分布

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

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：通过使用乌兰苏海湖中ArcGIS的地质统计分析模块研究了总氮（TN），总磷（TP）和化学需氧量（COD）的浓度，这是根据从2006年到2010年收集的监测数据。结果表明 TN，TP和COD的污染非常严重，水质超出了第五类国家湖水质量标准的规定。 乌兰苏海湖处于严重的富营养化，污染显然比其他湖泊更深。 TN，TP和COD浓度的变化从2006到2010年很少。但是，2008年出现了TN，TP和COD的所有最小值。然后TN和TP的浓度分布表明北向南逐渐降低趋势 过去5年。 COD的Minmum值出现在乌兰海海湖中部，湖两侧较高。 总之，乌兰苏海湖富营养化的地位非常严重。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号