洪湖外源性面源污染影响因素及其保护修复对策

发布时间：2018-05-16 01:23

本文选题：洪湖 + 面源污染　；参考：《水电能源科学》2016年12期

【摘要】：鉴于面源污染是导致湖泊水质恶化的重要原因之一,研究其污染过程具有重要意义。采用2006~2015年四湖流域相关资料,研究其中部区域的外源性面源污染对洪湖的影响。先利用污染物输出系数法研究外源性总氮年际增长与水质之间的关系,结合农业生产规律分析各月总氮变化规律与主要污染源优势期,并给出对应保护与修复措施。结果表明,研究期内年际外源性总氮与洪湖水质之间并非正相关关系;洪湖春季水质最好,夏、冬季水质最差;春、夏季是种植业产氮的优势期,夏、秋季是水产产氮的优势期且春、夏季洪湖水质受入湖径流与总氮共同影响,由此提出以水资源调配为主、工程措施为辅的保护修复对策。
[Abstract]:In view of the fact that non-point source pollution is one of the important reasons leading to the deterioration of lake water quality, it is of great significance to study its pollution process. Based on the relevant data from 2006 to 2015, the effects of exogenous non-point source pollution on Honghu Lake were studied. The relationship between the annual growth of exogenous total nitrogen and water quality was studied by means of the pollutant output coefficient method. The variation of total nitrogen in each month and the dominant period of major pollution sources were analyzed in combination with the agricultural production law, and the corresponding protection and remediation measures were given. The results showed that there was no positive correlation between exogenous total nitrogen and the water quality of Honghu Lake during the study period. The water quality of Honghu Lake was the best in spring, the worst in summer and the worst in summer. Autumn is the dominant period of aquatic nitrogen production and spring. In summer, the water quality of Honghu Lake is affected by runoff and total nitrogen. Therefore, the measures of conservation and restoration are put forward, which are based on the allocation of water resources and supplemented by engineering measures.
【作者单位】：河海大学水文水资源学院;中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室;
【基金】：国家自然科学基金项目(41571015,41371049,2013CBA01806);国家自然科学基金重大项目(51190091) 荒漠与绿洲生态国家重点实验室开放基金(2013547712) 河海大学水利学科专业国家级实验教学示范中心资助的教改项目
【分类号】：X524

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