地理形态多样性的量化及其空间分布与印度阿萨姆邦的洪水淹没区域
Laxmi Gupta1, Jagabandhu Dixit2
1Disaster Management Laboratory, Shiv Nadar University, Gautam Buddha Nagar, Delhi NCR, Uttar Pradesh, 201314, India.
Environmental monitoring and assessment
|October 4, 2024
概括
阿萨姆州阿萨姆州
科学领域:
- 地球科学 地球科学 地球科学
- 地质形态学 地质形态学
- 遥感和地理信息系统 (GIS) 的远程检测
背景情况:
- 印度东北部的阿萨姆州面临着严重的洪水风险,影响着地形.
- 地形演变与地质,地形,排水和土壤类型密切相关.
研究的目的:
- 用遥感和基于GIS的方法评估阿萨姆邦的地形多样性.
- 识别地质矿石并分析它们与洪水淹没和地质形态遗产的关系.
主要方法:
- 开发了一个地质多样性指数 (GMI),包括地质多样性,形态多样性和排水多样性.
- 利用遥感和GIS进行空间分析和洪水淹没地图.
- 鉴定了66个地质矿石,并根据地质,地形和GMI属性对它们进行了分类.
主要成果:
- 确定了中度 (27.02%),高 (10.76%) 和非常高 (3.7%) GMI 的地区.
- 巴拉克谷和阿萨姆中部地区的GMI值高至非常高,受地质和地形学的影响.
- 洪水淹没影响不同GMI类区域的不同百分比,GMI较高的区域经历了严重的洪水 (35.37%的非常高GMI区域).
结论:
- 高GMI地区具有重要的地质形态遗产价值.
- 地质多样性评估可以指导地质旅游的发展,并提高科学,教育和美学欣赏地质多样性.
- 调查结果支持改善洪水易发地区脆弱地质遗址的保护和管理政策.
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