从绿色到灰色:关于开放式采矿在奥迪沙州乔达的环境后果的地理空间研究
Krishna Manjari Jena1, Prasanta Kumar Patra1, Duryadhan Behera1
1Department of Earth Sciences, Sambalpur University, Jyoti Vihar, Sambalpur, Odisha, India.
Environmental geochemistry and health
|July 8, 2025
概括
在奥迪沙州开放式采矿.
科学领域:
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
- 地理空间分析的研究.
背景情况:
- 采矿业对国家经济产生重大影响,但也对环境造成严重破坏.
- 露天采矿导致土壤侵蚀,污染和生态破坏.
- 了解这些影响对于可持续发展至关重要.
研究的目的:
- 为了评估开放式采矿在奥迪沙州乔达区对环境的影响.
- 分析土地使用/土地覆盖变化和土地表面温度 (LST) 变化.
- 调查LST与各种遥感指数之间的相关性.
主要方法:
- 使用了1990年和2020年的Landsat卫星图像.
- 用于土地使用/土地覆盖 (LULC) 分类的最大概率分类器 (MLC).
- 应用单窗口算法用于LST检索和Pearson的相关性用于索引分析.
主要成果:
- 森林土地 (0.56%/年),水体 (0.47%/年) 和耕地 (0.87%/年) 显著下降.
- 采矿 (3.12%/年) 和建筑区 (11.51%/年) 的大幅增加.
- 平均LST从22.19°C增加到23.36°C;LST显示与NDVI有负相关性,与NDWI有弱阳性,与NDBI有强阳性.
结论:
- 开放式采矿导致了相当大的LULC变化,并在研究区域增加了LST.
- LST和NDVI之间的负相关性突出显示了植被丧失.
- LST和NDBI之间的强烈正相关性表明城市/矿业扩张的影响.
- 调查结果为采矿地区的可持续环境管理策略提供了指导.
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