مؤتمر
Potential effect of agricultural terraces on landslide occurrence: the tropical mountains of Rwanda
| العنوان: | Potential effect of agricultural terraces on landslide occurrence: the tropical mountains of Rwanda Effet potentiel des terrasses agricoles sur l'occurrence des glissements de terrain : les montagnes tropicales du Rwanda |
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| المؤلفون: | Sibomana, Pascal, Vanmaercke, Matthias, Nahayo, Deogratias, Depicker, Arthur, Tychon, Bernard, Hubert, Aurelia, Rukundo, Emmanuel, Dewitte, Olivier |
| المساهمون: | RMCA |
| المصدر: | EGU General Assembly 2023, Vienne, Austria [AT], 24-28/04/2023 |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Agricultural terraces, Landslides, frequency ratio, Odds ratio, debris flow, avalanches, landslide density, Physical, chemical, mathematical & earth Sciences, Earth sciences & physical geography, Physique, chimie, mathématiques & sciences de la terre, Sciences de la terre & géographie physique |
| الوصف: | The tropical mountainous environments of the Northern-western provinces of Rwanda in Africa are often referred to as the breadbasket of the country and are also densely populated. This high demographic pressure is associated with significant land management practices. In particular, agricultural practice of terracing has been promoted as soil and water conservation measure on the steep hillslopes of the region. However, the region is also landslide prone and the potential effect of terracing on landslides ccurrence has never been considered in the land management strategy. In this work, we assess this potential effect through the analysis of more than 4000 recent landslides that were triggered by intense rainfall events. Exploring the role of slope, lithology, regional landslide susceptibility patterns and the types of terraces (typology, age), we show that, overall, terracing increases the odds of landsliding when compared to non-terraced hillslopes. Although the terraces are implemented as soil and water conservation measures in the region, we find that they result into higher hillslope hazard. Landslide and flood hazards and vulnerability in NW Rwanda: towards applicable land management and disaster risk reduction (LAFHAZAV) |
| نوع الوثيقة: | conference poster not in proceedings http://purl.org/coar/resource_type/c_18co conferencePoster |
| اللغة: | English |
| Relation: | EGU23-9126; https://doi.org/10.5194/egusphere-egu23-9126 |
| DOI: | 10.5194/egusphere-egu23-9126 |
| URL الوصول: | https://orbi.uliege.be/handle/2268/302219 |
| حقوق: | open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
| رقم الأكسشن: | edsorb.302219 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.5194/egusphere-egu23-9126 |
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