Spatiotemporal Analysis of Total Suspended Solids in Water Bodies and Mapping Mining Areas in Suriname and French Guiana

Mining Pub Date : 2024-07-16 DOI:10.3390/mining4030029

Breno Mello Pereira, Felipe de Lucia Lobo

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引用次数: 0

Abstract

Artisanal and small-scale gold mining (ASGM) has made several environmental impacts, resulting in the significant siltation of water bodies due to the deposition of sediments on riverbanks. Based on this perspective, this study aims to investigate the water bodies and regions most impacted by mining activities, especially in relation to the increase in the Total Suspended Solids (TSS) caused by ASGM, focusing on the territories of Suriname and French Guiana, over the period from 2017 to 2023, through the creation of an algorithm in Google Earth Engine. This research also aims to map and describe active mining in this region using the Classification and Regression Tree (CART) method, which achieved an overall accuracy of 82% and a kappa index of 0.77. The results reveal that from 2017 to 2024, there was an increase of 148.09 km2 in mining, with an average increase in TSS of up to 167 mg/L in water bodies most affected by mining activities. Finally, the continued importance of using remote sensing technologies, such as GEE, together with innovative methodological approaches, to monitor and manage natural resources in a sustainable manner is highlighted.

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苏里南和法属圭亚那水体总悬浮固体时空分析及采矿区测绘

手工和小规模采金业（ASGM）对环境造成了一些影响，由于沉积物沉积在河岸上，导致水体严重淤塞。基于这一观点，本研究旨在通过在谷歌地球引擎中创建算法，调查受采矿活动影响最大的水体和地区，特别是与手工和小规模采金业造成的总悬浮固体（TSS）增加有关的水体和地区，重点是苏里南和法属圭亚那领土，时间跨度为 2017 年至 2023 年。这项研究还旨在利用分类和回归树（CART）方法绘制和描述该地区的活跃采矿情况，其总体准确率达到 82%，卡帕指数为 0.77。结果显示，从 2017 年到 2024 年，采矿面积增加了 148.09 平方公里，在受采矿活动影响最大的水体中，总悬浮固体的平均增加量高达 167 毫克/升。最后，强调了使用遥感技术（如 GEE）以及创新的方法论，以可持续的方式监测和管理自然资源的持续重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mining

CiteScore

2.80

自引率

0.00%

发文量