关于地下水污染及其人类影响分析的研究,使用地理空间技术在印度南部的半城市地区进行研究
Vivek S1, Umamaheswari R2, Subashree P3
1Department of Civil Engineering, GMR Institute of Technology, Razam, 532127, Andhra Pradesh, India.
Environmental research
|November 4, 2024
概括
气候变化影响地下水充电. 印度南部的一项研究使用了DRASTIC-LU模型和人类活动风险分析来评估地下水的脆弱性,确定了北部和中部地区的高度脆弱地区.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 遥感和地理信息系统 (GIS) 的远程检测
背景情况:
- 气候变化显著改变了地下水补充和可再生水源的供应.
- 快速的工业发展,特别是织行业,对地下水质量构成风险.
- 评估地下水的脆弱性对于可持续的水资源管理至关重要.
研究的目的:
- 评估印度南部快速发展的织工业地区地下水的易受性.
- 将遥感和基于GIS的DRASTIC-LU建模与人类活动风险 (HAR) 分析相结合.
- 确定易受地下水污染和潜在的水源性疾病影响的地区.
主要方法:
- 应用DRASTIC-LU模型 (深度到水,补充,水层介质,土壤介质,地形,瓦多斯区的影响,导电性,土地使用/土地覆盖).
- 从2010年和2020年开始,覆盖DRASTIC参数与土地使用/土地覆盖 (LULC) 层.
- 将DRASTIC-LU脆弱性图与人类活动风险 (HAR) 分析进行比较.
主要成果:
- 地下水的脆弱性模式在2010年显示在25-201和2020年显示在55-212之间,分为五个易感级别.
- 灵敏度分析显示了显著的参数影响,导电性 (84%) 和Vadose区域的影响 (79%) 具有很大的影响力.
- 北部,中部,中东部和中西部地区被确定为高度脆弱的地区,由于人类活动密度高,在2010年至2020年期间观察到风险增加.
结论:
- 该研究成功地绘制了在一个发展中工业地区的地下水脆弱性和相关的人类活动风险.
- 这些发现突出了需要有针对性的水资源管理和污染控制战略的关键领域.
- 综合地理信息系统和遥感方法是评估和减轻地下水污染风险的有效工具.
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