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首页> 外文期刊>Environmental Geology >Combine electrical resistivity method and multi-criteria GIS-based modeling for landfill site selection in the Southwestern Nigeria
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Combine electrical resistivity method and multi-criteria GIS-based modeling for landfill site selection in the Southwestern Nigeria

机译：结合电阻率法和基于多标准GIS的垃圾填埋场选择在尼日利亚垃圾填埋场选择

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摘要

An integration of remote sensing and geophysical data was carried out in Odode-Idanre using Geographic Information System (GIS) approach with the aim of developing a landfill site selection map of the area. The area falls within the Precambrian Basement complex of southwestern Nigeria. The remote sensing involved the processing and interpretation of Landsat-7 EMT+image covering the study area and the data were used to produce the lineament, slope, drainage and land use maps of the area. The geophysical investigation involved the vertical electrical sounding (VES) technique using Schlumberger configuration with half electrode spacing (AB/2) varying from 1 to 65m, One hundred and one (101) soundings stations were occupied within the study area. The interpretation of the VES data was used to generate the geoelectric section and determine Dar Zarrouk parameters. The results were used to generate thematic overburden and the coefficient of anisotropy maps. The geoelectric sections generally identified four geologic/geoelectric sequences that comprise topsoil, weathered layer, fractured Basement and fresh Basement. The depth to the Basement is generally less than 10m. The multi-criteria evaluation (MCE) analysis were used to assign weights to slope, land use, drainage density, lineament density, coefficient of anisotropy and overburden thickness using the analytical hierarchy process (AHP) and this was used to produce the landfill suitability map. The area was classified into unsuitable, moderately suitable and suitable zones. The unsuitable areas cover about 21.9%, moderately suitable areas cover about 55% and the suitable areas cover about 23.1%. The suitable areas are scattered and discontinuous but predominant within the southern part of the area. For the development of waste dump site within the study area, it should be located within the southern part which was found to be suitable.
机译：使用地理信息系统（GIS）方法在Otode-Idanre中进行了遥感和地球物理数据的集成，目的是开发该区域的垃圾填埋场选择地图。该地区落入尼日利亚西南部的前普里安地下室综合体。遥感涉及覆盖研究区域的Landsat-7 EMT +图像的处理和解释，并使用数据来产生该地区的划线，坡度，排水和土地。地球物理调查涉及使用钢板配置的垂直电气探测（VES）技术，其中半电极间距（AB / 2）不同于1至65米，一百个（101）个探测站在研究区域内被占用。使用VES数据的解释用于生成电气切片并确定DAR ZARROUK参数。结果用于产生主题覆盖层和各向异性地图系数。地质电切片通常识别出四个地质/地质电序列，其包含甲醛，风化层，裂缝地下室和新鲜地下室。地下室的深度通常小于10米。使用分析层次过程（AHP）将多标准评估（MCE）分析分配给斜坡，土地利用，排水密度，线身密度，各向异性系数和覆盖层厚度，并用于生产垃圾填埋场适用性图。该地区分为不合适，适度合适的和合适的区域。不合适的区域覆盖约21.9％，适度合适的区域覆盖约55％，合适的区域覆盖约23.1％。合适的区域在该地区的南部分散和占主导地位。为了在研究区内开发废物倾倒场地，它应该位于被发现适合的南部部分内。

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