摘要
我国西北地区水源严重不足,适宜的水质评价方法对于水资源高效利用至关重要。因此,本文对西北地区的7个地表水源点水质进行采样检测,利用单因子评价法、内梅罗指数法、模糊综合评价法、灰色关联度法四种方法分别对其水质状况进行评价分析,并对评价结果进行了系统讨论。结果显示,7个采样点模糊综合评价法的等级均为Ⅴ类,与单因子评价法和内梅罗指数法评价水平接近;灰色关联度法评估结果均在Ⅱ类以上,评价等级偏优。结合四种考核方式的特点,模糊综合评价法对7个点位的考核更适用,对于水资源的用途和实际情况,可考虑四种评价方法相结合的方式。
Water scarcity is a serious issue in the northwest region of China,and appropriate water quality evaluation methods are crucial for efficient utilization of water resources.Therefore,this paper collected and analyzed the water quality of seven surface water sources in the northwest region using four different methods,namely single-factor evaluation method,Nemero index method,fuzzy comprehensive evaluation method,and grey correlation degree method,and systematically discussed the evaluation results.The water quality status of the seven sampling points was evaluated and analyzed using the four methods mentioned above.The results showed that the fuzzy comprehensive evaluation method gave a gradeⅤfor all seven sampling points,which was similar to the evaluation levels obtained using the single-factor evaluation method and Nemero index method.The grey correlation degree method gave an evaluation grade above classⅡ,indicating a relatively superior evaluation level.Considering the characteristics of the four evaluation methods,the fuzzy comprehensive evaluation method is more suitable for evaluating the seven sampling points.However,a combination of the four evaluation methods should be considered,taking into account the intended use of the water resources and the actual situation.
作者
张帅
ZHANG Shuai(School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou Gansu 730070,China)
出处
《石油化工应用》
CAS
2024年第7期8-12,21,共6页
Petrochemical Industry Application
基金
甘肃省自然科学基金(22JR5RA316)
兰州市生态环境局黄河水环境承载力项目(218156)
甘肃省高校产业支撑计划项目(2023CYZC-41)
甘肃省高校产业支撑计划项目(2023CYZC-36)。
关键词
水质评价
单因子评价法
内梅罗指数法
模糊综合评价法
灰色关联度法
water quality evaluation
single-factor evaluation method
Nemero index method
fuzzy comprehensive evaluation method
grey correlation degree method
