Landslides and Fortified Settlements as Valuable Cultural Geomorphosites and Geoheritage Sites in the Moldavian Plateau, North-Eastern Romania

Niculiţă, Mihai; Mărgărint, Mihai Ciprian

doi:10.1007/s12371-017-0261-0

Cited by 27 publications

(28 citation statements)

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“…Europe's cultural heritage is in danger from natural hazards [34] and anthropic interventions [35]; the cultural heritage from the northeastern part of Romania is no exception [19,[36][37][38][39]. However, significant efforts are made every year in order to highlight the importance of Neolithic sites in establishing the Romanian identity and to promote them from a tourism point of view [40]. Besides the approach towards cultural heritage, the final maps will be analysed as a possible working direction in order to reduce time and money for one of the biggest infrastructure projects from the northeastern part of Romania-the A8 motorway.…”

Section: Study Area and Archaeological Backgroundmentioning

confidence: 99%

Is Overgrazing Really Influencing Soil Erosion?

Nicu

2018

Water

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Soil erosion is a serious problem spread over a variety of climatic areas around the world. The main purpose of this paper is to produce gully erosion susceptibility maps using different statistical models, such as frequency ratio (FR) and information value (IV), in a catchment from the northeastern part of Romania, covering a surface of 550 km 2 . In order to do so, a total number of 677 gullies were identified and randomly divided into training (80%) and validation (20%) datasets. In total, 10 conditioning factors were used to assess the gully susceptibility index (GSI); namely, elevation, precipitations, slope angle, curvature, lithology, drainage density, topographic wetness index, landforms, aspect, and distance from rivers. As a novelty, overgrazing was added as a conditioning factor. The final GSI maps were classified into four susceptibility classes: low, medium, high, and very high. In order to evaluate the two models prediction rate, the AUC (area under the curve) method was used. It has been observed that adding overgrazing as a contributing factor in calculating GSI does not considerably change the final output. Better predictability (0.87) and success rate (0.89) curves were obtained with the IV method, which proved to be more robust, unlike FR method, with 0.79 value for both predictability and success rate curves. When using sheepfolds, the value decreases by 0.01 in the case of the FR method, and by 0.02 in the case of the success rate curve for the IV method. However, this does not prove the fact that overgrazing is not influencing or accelerating soil erosion. A multi-temporal analysis of soil erosion is needed; this represents a future working hypothesis.

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Section: Study Area and Archaeological Backgroundmentioning

confidence: 99%

Is Overgrazing Really Influencing Soil Erosion?

Nicu

2018

Water

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“…Vulnerability to natural agents is one of the serious problems affecting the buildings of the Andalusian defensive heritage built of rammed earth, where the geomorphological, hydrological and environmental conditions of the territory have a significant negative impact on these structures. Thus, a notable number of defensive structures and other archaeological remains located on promontories are exposed to landslides [102,103], to weather phenomena (wind, rain, hail and/or lightning) or extreme weather conditions, such as coastal weather, with direct action from the sea. The hazards derived from river floods and their effect on the environment [104] and liquefaction processes will be more frequent for those located in lowland areas.…”

Section: Background Earthen Defensive Architecture: Protection Consmentioning

confidence: 99%

Pathologic and Risk Analysis of the Lojuela Castle (Granada-Spain): Methodology and Preventive Conservation for Medieval Earthen Fortifications

et al. 2020

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This study presents a methodology generated for the preventive conservation of defensive earthen architecture, applied to the case of the Lojuela Castle (Lecrin Valley, Granada, Spain). In the application of the designed protocol, a multidisciplinary analysis of its patrimonial characteristics and multidimensional evaluation was developed, applying the technique of qualitative consultation to a group of experts—the Delphi method. This methodology allowed us to relate the hazard factors and the vulnerability of the asset for each group of risks that affect it. The support of the method in with geographic information systems (GIS) has favored the production of predictive cartography and risk analysis—including the territorial dimensions and spatial interactions of the asset with the physical environment. This has facilitated the obtention of micro-zoning maps of each of the risks examined. The risk mapping in micro-zoning and the knowledge of the structure’s vulnerability represents an important contribution to the future conservation and management of this heritage. They favor strategies that minimize the incidence of risks and allow the prioritization of the conservation actions with a minimum economic investment, creating an efficient maintenance program. This will facilitate the protection, conservation and valorization decisions by the administration and the competent bodies involved in the protection of these sites.

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“…The geoheritage site status was argued by [4] and the actual state of the site represents a typical case of geoheritage sites at risk, in the last 80 years half of the initial site being eroded by the Bahluieţ river (according to aerial imagery and local information). …”

Section: Costeşti Geoheritage Sitementioning

confidence: 99%