| 引用本文: | 逯林方,王辉辉,胡亚伟,等.赵口引黄灌区二期工程区域地表水水质评价[J].灌溉排水学报,0,():-. |
| LU Linfang,WANG Huihui,HU Yawei,et al.赵口引黄灌区二期工程区域地表水水质评价[J].灌溉排水学报,0,():-. |
|
| 摘要: |
| 【目的】为研究赵口引黄灌区二期工程建设期间区域地表水环境质量状况。【方法】分别于2020年11月和2021年1月、3月、5月对灌区内涡河、惠济河河段21个监测点位进行调查分析，并采用单因子评价法、综合污染指数法和综合水质标识指数法三种方法相结合，对灌区地表水水质进行全面评价。【结果】灌区地表水总氮和总磷超标严重，是最主要的两种污染物，导致单因子评价法的评价结果较差。11月~3月Ⅴ类及劣Ⅴ类水质占比均超过95%，只有在5月份整体达到Ⅳ类水质；综合污染指数法评价结果显示，11月~5月水质从轻度污染向清洁状态改善，且存在一定的空间分布规律；综合水质标识指数法评价结果中，四个月份水质整体满足Ⅳ类水质标准。【结论】当前赵口引黄灌区二期工程区域地表水水质不容乐观，特别是枯水期水质较差，总氮和总磷是主要的污染指标，开展农业面源污染治理是改善灌区地表水水质的重要途径。 |
| 关键词: 灌区;水质评价;单因子评价法;综合污染指数法;综合水质标识指数法 |
| DOI： |
| 分类号:X824；TV882.1 |
| 基金项目:2020年度水利科技攻关项目（GG202063） |
|
| Evaluation of Surface Water Quality in the Second Phase Project of Zhaokou Yellow River Irrigation District |
|
LU Linfang1, WANG Huihui2, HU Yawei2, JIN Xiaohui2
|
|
1.Construction Administration of the Second Phase Project of Zhaokou Yellow River Irrigation District In Henan Province;2.Yellow River Institute of Hydraulic Research
|
| Abstract: |
| 【Objective】In order to study the regional surface water quality during the construction period of the Second Phase Project of Zhaokou Yellow River Irrigation District.【Method】the Guo River and Huiji River sections in the irrigation area were analyzed in November 2020 and January, March, and May 2021, respectively. The 21 monitoring points were investigated and analyzed, and three methods of single factor evaluation method, comprehensive pollution index method and comprehensive water quality labeling index method were combined to comprehensively evaluate the surface water quality.【Result】The TN and TP in the surface water of the irrigation exceeded the standard seriously and were the two most important pollutants, resulting in poor evaluation results of the single-factor evaluation method. From November to March, the water quality of Grade V and inferior to Grade V accounted for more than 95%, and only in May the water quality reached Grade IV as a whole; the evaluation results of the comprehensive pollution index method showed that from November to May, the water quality changed from mild pollution to clean state, and there is a certain spatial distribution law; in the evaluation results of the comprehensive water quality labeling index method, the water quality in the four months generally meets the Grade IV water quality standard.【Conclusion】At present, the quality of surface water in the Second Phase Project of Zhaokou Yellow River Irrigation District is not optimistic, especially in the dry season, and the total nitrogen and total phosphorus are the main pollution indicators. Carrying out agricultural non-point source pollution control is an important way to improve the quality of surface water in irrigation areas. |
| Key words: irrigation area; water quality evaluation; single factor evaluation method; comprehensive pollution index method; comprehensive water quality labeling index method |
