| 袁河袁州区段溶解氧过饱和成因分析及防治 |
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| 引用本文： | 陈文洪,李林,龙彪,温巍,钟裕柱,陈璐,陈慧珍,陈怀民.袁河袁州区段溶解氧过饱和成因分析及防治[J].中国环境监测,2022,38(2):79-84. |
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| 作者姓名： | 陈文洪 李林 龙彪 温巍 钟裕柱 陈璐 陈慧珍 陈怀民 |
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| 作者单位： | 江西师范大学, 鄱阳湖湿地与流域研究教育部重点实验室, 江西 南昌 330022;江西省宜春水文局, 江西 宜春 336000;宜春市生态环境局, 江西 宜春 336000;常州工业职业技术学院 材料工程学院(环境工程学院), 江苏 常州 213164 |
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| 基金项目： | 国家自然科学基金资助项目(51309126,41661102);江西省自然科学基金资助项目(20192BAB203018);鄱阳湖湿地与流域研究教育部重点实验室(江西师范大学)开放基金资助项目(PK2018003) |
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| 摘 要： | 2020年8月15日袁河袁州区段(棚下-袁河水厂取水口)出现溶解氧过饱和现象,为了解该河段溶解氧的变化及提高河道流量前后对水生态环境的影响,将该段河道分为6个监测断面,于8月16—24日监测每个监测点的常规水质、浮游植物群落结构、溶解氧和实时流量.结果表明:自然状态下袁河袁州区段溶解氧沿水流方向从6.8 mg/L逐渐增...
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| 关 键 词： | 溶解氧 过饱和 袁河 浮游植物 流量 |
| 收稿时间： | 2021/2/8 0:00:00 |
| 修稿时间： | 2021/5/20 0:00:00 |
Cause Analysis of Dissolved Oxygen Supersaturation in Yuanhe River Section of Yuanzhou District |
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| CHEN Wenhong,LI Lin,LONG Biao,WEN Wei,ZHONG Yuzhu,CHEN Lu,CHEN Huizhen,CHEN Huaimin.Cause Analysis of Dissolved Oxygen Supersaturation in Yuanhe River Section of Yuanzhou District[J].Environmental Monitoring in China,2022,38(2):79-84. |
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| Authors: | CHEN Wenhong LI Lin LONG Biao WEN Wei ZHONG Yuzhu CHEN Lu CHEN Huizhen CHEN Huaimin |
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| Institution: | Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China;Yichun Hydrological Bureau of Jiangxi Province, Yichun 336000, China;Yichun Ecology and Environment Bureau of Jiangxi Province, Yichun 336000, China; School of Materials Engineering (School of Environmental Engineering), Changzhou Institute of Industry Technology, Changzhou 213164, China |
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| Abstract: | The phenomenon of dissolved oxygen supersaturation was found in the section of Yuanhe River (from Pengxia to Yuanhe Waterworks intake) on August 15,2020.In order to understand the changes of dissolved oxygen in this section the impact on the water ecological environment before and after increasing the river flow,the river was divided into six sections to monitor routine index include water quality,phytoplankton,dissolved oxygen and real-time flow from 16 to 24 August.The results showed that the dissolved oxygen in this section increased gradually from 6.8 mg/L to 12.48mg/L in the natural state,which showed supersaturation.The river flow increased by an average of 40%-47% during the 6-10 hours of continuous water diversion by adopting the method that the flow was first large and then small.Before and after the increase of discharge,there was little difference in total nitrogen,total phosphorus,ammonia nitrogen and CODMn,dissolved oxygen and pH returned to normal level,but the dominant phytoplankton species and quantity changed significantly.Pearson correlation analysis showed that the dissolved oxygen content was significantly positively correlated with the total density of phytoplankton (P<0.01). |
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| Keywords: | dissolved oxygen supersaturation Yuanhe River phytoplankton flow |
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