科西嘉地下水体细分:利用大型数据库,基于多元水质标准的关键方法

IF 3.1 Q2 WATER RESOURCES
Hajar Lazar, Meryem Ayach, A. Barry, Ismail Mohsine, Abdessamad Touiouine, F. Huneau, Christophe Mori, É. Garel, I. Kacimi, Vincent Valles, L. Barbiero
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引用次数: 0

摘要

为了更好地了解科西嘉岛(法国)水域的多样性,促进对地下水资源的监控和质量监测,我们对两个数据库进行了交叉对比,即地下水体(GWB)的划分和质量监测(2830 次观测,包括 15 个物理化学和细菌学参数,共 662 个采集点,历时 27 年)。数据调节(对数变换)、降维(PCA)、分类(AHC),然后对分组过程中丢失的信息进行量化(方差分析),突出了对科西嘉岛结晶部分地下水体进行细分的必要性,以便更好地考虑岩性多样性和其他环境因素(坡度、海拔、土壤厚度等)。主要根据地质构造将其划分为 15 个单元,提供的信息少于将结晶区域划分为 12 个单元后提供的信息。讨论了水域在化学和细菌组成方面的多样性,结果鼓励对岛上全球水文地质观测站的分区进行审查,以便根据这种多样性进行更有针对性的监测。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Groundwater Bodies Subdivision in Corsica: A Critical Approach Based on Multivariate Water Quality Criteria Using Large Database
The cross-referencing of two databases, namely the compartmentalization into groundwater bodies (GWB) and the quality monitoring (2830 observations including 15 physico-chemical and bacteriological parameters, on 662 collection points and over a period of 27 years) is applied to better understand the diversity of the waters of the island of Corsica (France) and to facilitate the surveillance and quality monitoring of the groundwater resource. Data conditioning (log-transformation), dimensional reduction (PCA), classification (AHC) and then quantification of the information lost during grouping (ANOVA), highlight the need to sub-divide the groundwater bodies in the crystalline part of the island in order to take better account of lithological diversity and other environmental factors (slope, altitude, soil thickness, etc.). The compartmentalization into 15 units, mainly based on structural geology, provides less information than the grouping into 12 units after subdivision of the crystalline region. The diversity of the waters in terms of chemical and bacteriological composition is discussed, and the results encourage a review of the compartmentalization of the island’s GWBs, with a view to more targeted monitoring based on this diversity.
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来源期刊
Hydrology
Hydrology Earth and Planetary Sciences-Earth-Surface Processes
CiteScore
4.90
自引率
21.90%
发文量
192
审稿时长
6 weeks
期刊介绍: Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences, including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology, hydrogeology and hydrogeophysics. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, ecohydrology, geomorphology, soil science, instrumentation and remote sensing, data and information sciences, civil and environmental engineering are within scope. Social science perspectives on hydrological problems such as resource and ecological economics, sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site. Studies focused on urban hydrological issues are included.
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