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评估Metro Hilir流域的山间平原的地下水脆弱性 马兰格流域
Ferryati Masitoh1, Alfi Nur Rusydi2, Fatwa Ramdani3
1Department of Geography, Faculty of Social Sciences, Universitas Negeri Malang, Malang, Indonesia.
Scientific reports
|October 30, 2025
概括
地下水在地铁Hilir流域的地下水显示中等到高污染的脆弱性. 影响这种风险的关键因素包括液压导电性和毒区影响,为关键的水资源管理决策提供了信息.
科学领域:
- 水文地质学 水文地质学
- 环境科学 环境科学
- 水资源管理 水资源管理
背景情况:
- 评估地下水的脆弱性至关重要,特别是在正在发展的农业地区,如地铁Hilir流域.
- 流域的山间平原环境和农村土地利用需要了解对地下水资源的污染风险.
研究的目的:
- 识别,绘制和分析Hilir地铁流域内地下水污染的脆弱性.
- 运用DRASTIC废弃物利用模型对含水层易受性的全面评估.
主要方法:
- 利用了DRASTIC土地利用模型,结合了现场调查 (井深,酸盐的水样),地电测试 (含水层特性,液压导电性) 和二次数据 (降雨量,土壤,地形).
- 采用谷歌地球引擎获取最新的土地使用数据 (2024年),并对DRASTIC结果进行分类,以定义漏洞类别.
- 使用酸盐水平验证了模型,并对诸如液压导电性和对Vadose区域的影响等关键参数进行了灵敏度分析.
主要成果:
- 超过91%的地铁Hilir流域表现出中等到高的地下水脆弱性.
- 高脆弱性区域集中在西北部,向南延伸,而中等脆弱性区域位于东部和西南部.
- 敏感性分析证实了水力导电性和对瓦多斯区的影响是影响脆弱性评估的关键因素.
结论:
- 该研究成功地绘制和分析了地下水的脆弱性,突出了Hilir地铁流域的重大污染风险.
- 调查结果为知情地进行地下水质量管理和政策制定提供了必要的数据.
- 德拉斯蒂克土地利用模型 (DRASTIC Landuse Model) 已被证明是有效的,用于评估这一特定农业流域的地下水脆弱性.
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