广州南部区域地下水水位动态特征及水质动态评价  

DynamicCharacteristics and Water Quality Evaluation of Groundwater Level in the Southern Region of Guangzhou

作　　者：闫淼 王钊 Yan Miao;Wang Zhao(Guangzhou Institute of Geological Survey,Guangzhou 510440,Guangdong,China)

机构地区：[1]广州市地质调查院,广东广州510440

出　　处：《绿色科技》2024年第10期137-142,共6页Journal of Green Science and Technology

摘　　要：为保护及监测广州南部区域地下水资源,分析了广州南部区域5个典型监测孔2018-2022年地下水水位变化并采用主成分法和综合指数法进行水质动态评价。结果表明:该区域地下水水位埋深变化范围在0.18~4.33 m,年均水位变化幅度较小,属于基本稳定。两种地下水水质评价的计算结果显示,可从地下水样品的检测指标中提取2个主成分来替代7个水质指标,该区域整体地下水环境质量较差,86.5%的采样点的水质为Ⅲ类及Ⅲ类以上等级。建议加强对南部区域重点水源地的控制,减少人类活动。In order to protect and monitor the groundwater resources in the southern region of Guangzhou,the groundwater level changes of five typical monitoring wells in the southern region of Guangzhou from 2018 to 2022 were analyzed,and the principal component method and comprehensive index method were used for water quality dynamic evaluation.The results show that the variation range of groundwater level depth in the region is between 0.18 and 4.33 meters,and the annual average water level change is relatively small,indicating it is basic stability.The calculation results of two types of groundwater quality evaluations show that two principal components can be extracted from the detection indicators of groundwater samples to replace seven water quality indicators.The overall groundwater environmental quality in the region is poor,with 86.5%of sampling points having water quality of Class III or above.Suggestions such as strengthening control over key water sources in the southern region and reducing human activities are put forward.

关 键 词：地下水水位 主成分 综合指数法 广州南部 

分 类 号：P641.72[天文地球—地质矿产勘探]