墨西哥恰帕斯州受土地利用影响的热带喀斯特系统的水质管理

Q2 Environmental Science
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引用次数: 0

摘要

城市化和农业活动正日益威胁着岩溶系统及其提供的水资源,而这些对农村社区的生计至关重要。在过去的十年中,墨西哥恰帕斯州的科米坦-拉戈斯-蒙特贝罗河流域(RGC-LM)的水质严重恶化。本研究旨在分析 RGC-LM 流域内的水质动态及其与土地利用变化之间的潜在相互作用。我们通过八次监测活动(从 2013 年到 2020 年)对流域内的地层和湖泊系统的物理化学和微生物参数进行了评估。我们采用聚类分析(CA)和主成分分析(PCA)统计方法来确定地表水水质变化的主要驱动因素。这种方法旨在加强环境管理战略中的水质评估,目的是推广可持续的土地使用方法,以保护和改善流域内的水资源。我们的研究结果表明,流域上游和下游的水质存在很大差异。在海拔较高的湖泊(山地湖泊)中观察到的良好水质条件可归因于有利的地形特征、特定的土地利用模式和有效的保护措施。相比之下,由于废水处理效率低下和农业径流的影响,流域中部的湖泊系统和海拔较低的湖泊(平原湖泊)出现了水质恶化的迹象。这项研究强调了实施适当的环境管理策略以有效解决这些水质挑战的重要性。鉴于喀斯特环境中水质退化问题的紧迫性,我们强调有必要增加物理化学和微生物参数的监测频率,以捕捉季节性变化,进一步了解喀斯特环境中水资源的脆弱性。未来对营养物浓度、农药水平和蓝绿藻种群的评估对于评价流域范围内的营养状态也至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Water quality management in a tropical karstic system influenced by land use in Chiapas, Mexico

Urbanization and agricultural activities are increasingly threatening karstic systems and the water resources they provide, which are crucial for the livelihood of rural communities. Over the past decade, the Río Grande de Comitán-Lagos de Montebello (RGC-LM) watershed in Chiapas, Mexico, has experienced significant deterioration in water quality. The objective of this study was to analyze the water quality dynamics within the RGC-LM watershed and their potential interaction with land use change. We conducted assessments of the physicochemical and microbiological parameters across the lotic and lentic systems within the watershed over eight monitoring campaigns (from 2013 to 2020). Cluster Analysis (CA) and Principal Component Analysis (PCA) statistical approaches were performed to identify the main drivers of surface water quality variability. This approach aims to enhance water quality assessments within environmental management strategies, with the goal of promoting sustainable land-use practices aimed at protecting and improving water resources within the watershed. Our findings indicate that there is a substantial difference between the upper and lower watershed water quality. The good water quality conditions observed in the higher altitude lakes (mountain lakes) can be attributed to favorable topographical features, specific land use patterns, and effective conservation measures. In contrast, the lotic system in the middle watershed and the lentic water bodies located at lower altitudes (plain lakes) exhibit signs of water quality degradation due to inefficient wastewater treatment and agricultural runoff. This study highlights the importance of implementing adequate environmental management strategies to address these water quality challenges effectively. Given the pressing issue of water quality degradation in karstic environments, we emphasize on the need for increased monitoring frequency of both physicochemical and microbiological parameters to capture seasonal variations and to further understand the vulnerability of water resources in karstic environments. Future assessment of nutrient concentrations, pesticide levels, and blue-green algae populations will also be crucial for evaluating the trophic state at a watershed scale.

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来源期刊
Environmental Challenges
Environmental Challenges Environmental Science-Environmental Engineering
CiteScore
8.00
自引率
0.00%
发文量
249
审稿时长
8 weeks
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