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首页> 外文期刊>Journal of Natural Sciences Research >Application of Geographical Information Systems (GIS) and Analytical Hierarchy Process (AHP) in the Selection of A Suitable Sanitary Landfill Site for Solid Waste Disposal And
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Application of Geographical Information Systems (GIS) and Analytical Hierarchy Process (AHP) in the Selection of A Suitable Sanitary Landfill Site for Solid Waste Disposal And

机译：地理信息系统（GIS）和分析层次处理（AHP）在选择合适的卫生垃圾场所，用于固体废物处理及

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Shortage of land for waste disposal and inappropriate dump sites is the biggest problems in the Niger Delta Area of Nigeria, Warri in particular. This problem has its negative impact on human and environment owing to the menace often caused by indiscriminate dumping of solid waste. The swamping nature of the soil and the irregular topographic nature of the land hinder the flow of accumulated water formed by rains. This makes runoff during the rainy season almost impossible leading to flood in most cases. To select an appropriate site for landfill, there is need to consider different alternative areas using numerous criteria’s before making decision. In this study, geographical information systems (GIS) and analytical hierarchy process (AHP) were employed to analyze selected criteria’s that can influence the selection of a suitable site for sanitary landfill application in Warri, Delta State, Nigeria. The selected criterions include; flood extent, stream, rivers, swampy areas, ground water, built-up areas, roads, slopes, airport, palaces and point of interests (POIs). Features of interest such as roads, built-up areas, swampy areas, rivers and streams in the SPOT 5 satellite imagery were converted to vector format by digitizing in order to create a geographic database dataset. Weighted Overlay Linear Combination for map superimposition was adopted while constraints and factors were employed as the criteria for decision-making process. Suitability rating value of 1 to 5 meaning; not suitable, least suitable, moderately suitable, highly suitable and mostly suitable was use as the final index for land suitability. Results of the weighted overlay revealed three potential sites within the study area and they include; site 1, site 2, and site 3 with 3.334, 5.418 and 47/582 hectares of land suitable for sanitary landfill applications.
机译：废物处理的土地短缺和不适当的倾销网站是尼日利亚尼日利亚尼日利亚，瓦里的最大问题。由于威胁倾倒固体废物造成的威胁，这一问题对人类和环境产生了负面影响。土壤的雨水性质及土地的不规则地形性质阻碍了下雨形成的积水流动。这使得在大多数情况下几乎不可能导致洪水的径流。要选择垃圾填埋场适当的站点，需要在做出决定之前使用许多标准考虑不同的替代区域。在本研究中，使用地理信息系统（GIS）和分析层次处理（AHP）分析所选标准，可以影响在尼日利亚瓦里，三角洲州沃尔蒂的卫生垃圾填埋场适用的合适部位。所选标准包括;洪水范围，溪流，河流，沼泽地区，地面水，建筑区域，道路，山坡，机场，宫殿和兴趣点（POI）。诸如道路，内置区域，沼泽地区，河流和河流的流动等特征，通过数字化转换为矢量格式，以创建地理数据库数据集。采用加权覆盖线性组合用于地图叠加，而限制和因素是作为决策过程的标准。适用性额定值为1至5个意义;不适合，最不合适的，适度适合，高度合适的，主要是合适的用作土地适用性的最终指数。加权覆盖的结果揭示了研究区内的三个潜在部位，包括; Site 1，Site 2和Site 3，3.334,5.418和47/582公顷土地，适用于卫生垃圾填埋场应用。

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