铝土矿开采对牙买加植被健康的影响：NDVI和遥感气溶胶光学深度分析

IF 4.1 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Physics and Chemistry of the Earth Pub Date : 2025-08-12 DOI:10.1016/j.pce.2025.104058

Damar Wilson, Birhan Getachew Tikuye, Gebrekidan Worku Tefera, Ram Lakhan Ray

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引用次数: 0

摘要

铝土矿开采极大地改变了土地覆盖和空气质量，影响了牙买加矿区的植被健康。本研究利用MODIS、Sentinel和IMERG/GPM数据集评估了圣安、曼彻斯特、克拉伦登和圣凯瑟琳铝土矿和非铝土矿地区的归一化植被指数（NDVI）、气溶胶光学深度（AOD）和降水之间的关系。研究结果表明，AOD与NDVI呈显著负相关，矿区粉尘污染增加导致植被下降。NDVI分析表明，与非矿区相比，矿区植被覆盖度较低，恢复速度较慢，特别是在降水有限的干旱时期。这些结果强调，迫切需要制定可持续采矿政策，加强粉尘缓解措施，并努力恢复生态系统，以抵消牙买加铝土矿开采对环境的不利影响。

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Impact of bauxite mining on vegetation health in Jamaica: NDVI and aerosol optical depth analysis using remote sensing

Bauxite mining significantly alters land cover and air quality, impacting vegetation health in Jamaica's mining regions. This study employs MODIS, Sentinel, and IMERG/GPM datasets to assess the relationship between the Normalized Difference Vegetation Index (NDVI), Aerosol Optical Depth (AOD), and precipitation across bauxite and non-bauxite areas in St. Ann, Manchester, Clarendon, and St. Catherine. The findings reveal a strong negative correlation between AOD and NDVI, with increased dust pollution from mining contributing to vegetation decline. NDVI analysis shows that mining regions experience lower vegetation cover and slower recovery than non-mining areas, particularly during dry periods when precipitation is limited. These results underscore the urgent need for sustainable mining policies, enhanced dust mitigation measures, and ecosystem restoration efforts to counteract the adverse environmental effects of bauxite mining in Jamaica.

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来源期刊

Physics and Chemistry of the Earth 地学-地球科学综合

CiteScore

5.40

自引率

2.70%

发文量

176

审稿时长

31.6 weeks

期刊介绍： Physics and Chemistry of the Earth is an international interdisciplinary journal for the rapid publication of collections of refereed communications in separate thematic issues, either stemming from scientific meetings, or, especially compiled for the occasion. There is no restriction on the length of articles published in the journal. Physics and Chemistry of the Earth incorporates the separate Parts A, B and C which existed until the end of 2001. Please note: the Editors are unable to consider submissions that are not invited or linked to a thematic issue. Please do not submit unsolicited papers. The journal covers the following subject areas: -Solid Earth and Geodesy: (geology, geochemistry, tectonophysics, seismology, volcanology, palaeomagnetism and rock magnetism, electromagnetism and potential fields, marine and environmental geosciences as well as geodesy). -Hydrology, Oceans and Atmosphere: (hydrology and water resources research, engineering and management, oceanography and oceanic chemistry, shelf, sea, lake and river sciences, meteorology and atmospheric sciences incl. chemistry as well as climatology and glaciology). -Solar-Terrestrial and Planetary Science: (solar, heliospheric and solar-planetary sciences, geology, geophysics and atmospheric sciences of planets, satellites and small bodies as well as cosmochemistry and exobiology).