对沙子开采导致的萨特莱河变化的形态分析
Simranjeet Kaur1, Abdul Gani2, Shray Pathak3
1Department of Geography, Punjab University, Chandigarh, India.
Environmental geochemistry and health
|September 26, 2025
概括
萨特莱德河 (Sutlej River) 密集的沙子开采加速了河岸的侵蚀和河道的移动,增加了洪水风险和生态系统损害. 可持续的实践和持续的地形学监测对于河流管理至关重要.
科学领域:
- 河流的地质形态学
- 环境科学环境科学
- 遥感和地理信息系统 (GIS) 的应用
背景情况:
- 河流系统是动态的,容易受到自然和人为变化的影响.
- 采沙是一项重要的人类干预,影响了河流形态和生态系统.
研究的目的:
- 评估印度旁遮普邦的萨特莱奇河的形态变化.
- 调查砂矿对河流动力学和地形学的具体影响.
主要方法:
- 对地形指标进行多时间卫星图像分析 (2001年,2014年,2024年).
- 使用SRTM衍生的DEM和水文工具进行地形测量评估.
- 河岸划分,移位分析和沉积物负载比较.
主要成果:
- 显著的道形态变化,特别是在采砂场.
- 显著的横向斜移 (8.6972.49米) 和大量的侵蚀/沉积面积 (1561.852263.41公).
- 强化采矿与银行侵蚀和沉积物再分配的增加之间存在明显的空间相关性.
结论:
- 砂矿开采加速了道动态,导致地形不稳定性和洪水易感性增加.
- 影响包括息地丧失,沉积物运输的改变以及对河流生态系统的威胁.
- 迫切需要可持续的砂矿开采和使用GIS和遥感的持续地质形态监测.
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