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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Landslide Susceptibility Assessment Using Spatial Multi-Criteria Evaluation Model in Rwanda
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Landslide Susceptibility Assessment Using Spatial Multi-Criteria Evaluation Model in Rwanda

机译：基于空间多准则评价模型的卢旺达滑坡敏感性评价

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摘要

Landslides susceptibility assessment has to be conducted to identify prone areas and guide risk management. Landslides in Rwanda are very deadly disasters. The current research aimed to conduct landslide susceptibility assessment by applying Spatial Multi-Criteria Evaluation Model with eight layers of causal factors including: slope, distance to roads, lithology, precipitation, soil texture, soil depth, altitude and land cover. In total, 980 past landslide locations were mapped. The relationship between landslide factors and inventory map was calculated using the Spatial Multi-Criteria Evaluation. The results revealed that susceptibility is spatially distributed countrywide with 42.3% of the region classified from moderate to very high susceptibility, and this is inhabited by 49.3% of the total population. In addition, Provinces with high to very high susceptibility are West, North and South (40.4%, 22.8% and 21.5%, respectively). Subsequently, the Eastern Province becomes the peak under low susceptibility category (87.8%) with no very high susceptibility (0%). Based on these findings, the employed model produced accurate and reliable outcome in terms of susceptibility, since 49.5% of past landslides fell within the very high susceptibility category, which confirms the model’s performance. The outcomes of this study will be useful for future initiatives related to landslide risk reduction and management.
机译：必须进行滑坡敏感性评估，以识别易发地区并指导风险管理。卢旺达的山体滑坡是非常致命的灾难。当前的研究旨在通过应用具有八层因果关系的空间多准则评估模型来进行滑坡敏感性评估，这些因果关系包括：坡度，到公路的距离，岩性，降水，土壤质地，土壤深度，海拔和土地覆盖率。总共绘制了980个过去的滑坡位置。滑坡因素与库存图之间的关系是使用空间多准则评估法计算的。结果表明，全国范围内的敏感性分布在全国，有42.3％的区域从中等到非常高的敏感性，占总人口的49.3％。此外，易感性高到极高的省是西部，北部和南部（分别为40.4％，22.8％和21.5％）。随后，东部省成为低敏感性类别（87.8％）的高峰，而没有很高的敏感性（0％）。基于这些发现，所采用的模型在磁化率方面产生了准确而可靠的结果，因为过去滑坡的49.5％属于极高的磁化率类别，这证实了该模型的性能。这项研究的结果对于与减少和管理滑坡有关的未来计划将是有用的。

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