Department of Geography, Tourism and Territorial Planning, University of Oradea, 410087 Oradea, Romania.
Department of Geography, Tourism and Hotel Management, University of Novi Sad, 21000 Novi Sad, Serbia.
Int J Environ Res Public Health. 2021 May 10;18(9):5022. doi: 10.3390/ijerph18095022.
Romania is one of the countries severely affected by numerous natural hazards, where landslides constitute a very common geomorphic hazard with strong economic and social impacts. The analyzed area, known as the "Ciuperca Hill", is located in Oradea (NW part of Romania) and it has experienced a number of landsliding events in previous years, which have endangered anthropogenic systems. Our investigation, focused on the main causal factors, determined that landslide events have rather complex components, reflected in the joint climatological characteristics, properties of the geological substrate, and human activity that further contributed to the intensive change of landscape and acceleration of slope instability. Analysis of daily precipitation displays the occurrence and intensive distribution between May and September. Higher values of rainfall erosivity (observed for the 2014-2017 period), are occurring between April and August. Erosivity density follows this pattern and indicates high intensity events from April until October. index reveals the greater presence of various wet classes during the investigated period. Geological substrate has been found to be highly susceptible to erosion and landsliding when climatological conditions are suitable. Accelerated urbanization and reduced vegetation cover intensified slope instability. The authors implemented adequate remote-sensing techniques in order to monitor and assess the temporal changes in landslide events at local level. Potential solutions for preventative actions are given in order to introduce and conduct qualitative mitigation strategies for shaping sustainable urban environments. Results from this study could have implications for mitigation strategies at national, regional, county, and municipality levels, providing knowledge for the enhancement of geohazard prevention and appropriate response plans.
罗马尼亚是受众多自然灾害严重影响的国家之一，其中滑坡是一种非常常见的地貌灾害，对经济和社会具有强烈的影响。分析的区域，称为“Ciuperca 山”，位于奥拉迪亚（罗马尼亚西北部），在过去几年中经历了多次滑坡事件，这些事件危及了人为系统。我们的调查集中在主要的诱发因素上，确定了滑坡事件具有相当复杂的组成部分，反映在气候特征、地质基底特性和人类活动的共同作用，这些因素进一步导致了景观的剧烈变化和斜坡稳定性的加速。对每日降水的分析显示，5 月至 9 月之间发生了滑坡事件，并呈密集分布。更高的降雨侵蚀力值（观察到 2014-2017 年期间）出现在 4 月至 8 月之间。侵蚀密度遵循这一模式，表明 4 月至 10 月期间发生高强度事件。降雨指数表明，在研究期间存在各种潮湿等级的更大存在。地质基底在气候条件适宜时，极易受到侵蚀和滑坡的影响。城市化加速和植被覆盖减少加剧了斜坡的不稳定性。作者实施了适当的遥感技术，以便监测和评估当地滑坡事件的时间变化。为了引入和实施塑造可持续城市环境的定性缓解策略，给出了预防行动的潜在解决方案。本研究的结果可能对国家、地区、县和市各级的缓解策略产生影响，为增强地质灾害预防和适当的应对计划提供知识。
