Assessment of Terrain and Land Use/Land Cover Changes of Mine Sites using Geospatial Techniques in Plateau State, Nigeria

IF 1.1 Q3 MINING & MINERAL PROCESSING
A. Owolabi
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引用次数: 4

Abstract

In this paper, we report a geospatial assessment of the selected mine sites in the Plateau State, Nigeria. The aim of this work is to determine the impact of mining on the terrain as well as the Land Use/Land Cover (LULC) of the host communities. The Shuttle Radar Topographic Mission (SRTM) is used for the terrain mapping. The derived impact of mining on LULC between 1975 and 2014 is determined by classifying the relevant Landsat imageries. The digital terrain map reveal that the mining activity is not well-coordinated. Hence, the parts of the mine sites that are rich in the desired minerals are punctuated with low depth, while the other parts have high terrain as a result of the haphazard mining activity. The analysis of the LULC change show that the degraded land (DL), built-up area (BU), water bodies (WB), and exposed rock outcrop (RO) increase by 15.68%, 4.68%, 0.06%, and 14.5%, respectively, whereas the arable farmland (FL) and forest reserve (FR) decrease by 28.29% and 6.63%, respectively. Mining has adversely affected the natural ecology of the studied area. Therefore, the mine sites should be monitored, and their environmental damages should be pre-determined and mitigated. There should be regular inspections to keep these activities under control. The existing laws and regulations to conserve the natural ecosystems of the host communities should be enforced to curtail the excesses of the operators of the mining industries. Restoration of the minefields to reduce the existing hazards prevent further environmental degradation, and facilitating the socio-economic development of the area is also suggested.
利用地理空间技术评估尼日利亚高原州的地形和土地利用/土地覆盖变化
在本文中,我们报告了对尼日利亚高原州选定矿场的地理空间评估。这项工作的目的是确定采矿对所在社区的地形和土地利用/土地覆盖(LULC)的影响。航天飞机雷达地形任务(SRTM)用于地形测绘。通过对相关陆地卫星成像进行分类,确定了1975年至2014年间采矿对LULC的衍生影响。数字地形图显示,采矿活动没有得到很好的协调。因此,矿场中富含所需矿物的部分被低深度打断,而其他部分由于随意的采矿活动而地势较高。LULC变化分析表明,退化土地(DL)、建成区(BU)、水体(WB)和裸露岩石露头(RO)分别增加了15.68%、4.68%、0.06%和14.5%,而耕地(FL)和森林保护区(FR)分别减少了28.29%和6.63%。采矿对研究区域的自然生态产生了不利影响。因此,应对矿场进行监测,并预先确定和减轻其对环境的破坏。应定期进行检查,以控制这些活动。应执行保护东道社区自然生态系统的现行法律和法规,以遏制采矿业经营者的过度行为。还建议恢复雷场,以减少现有的危险,防止环境进一步恶化,并促进该地区的社会经济发展。
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来源期刊
Journal of Mining and Environment
Journal of Mining and Environment MINING & MINERAL PROCESSING-
CiteScore
1.90
自引率
25.00%
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0
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