Volume XX |

Heuristic Approach in Determining the Best Tourist Tours to Medieval Fruška Gora Monasteries in Serbia

Abstract: This study brings the results of comprehensive analysis aimed at finding the best tourist routes between twenty important tourism sites in Serbia: sixteen medieval monasteries at Fruška Gora Mountain, two other important monasteries in the area, and cities of Novi Sad and Belgrade as starting points of tours. Several travelling salesman problems are formulated and the shortest tours are found with the application of heuristic approach and genetic algorithm developed specially for this purpose. The best tour connecting all twenty sites of great tourist interest is firstly identified in strictly geographical terms by using GPS coordinates and orthodromic distances. This result, considered as the optimal in mathematical sense is not achievable in real circumstances, but can serve as target and be compared with any other solution obtained as if the touring all sites is made by car. In this study the distances between sites are based on node-to-node ground transportation infrastructure data downloaded from the Google Maps Service at Internet. Shortest tours respect topography of the area and can be used for planning tourist and other visits to monasteries and cities of national and international importance. The results of this study are considered as input to improvement of existing government policies affecting Serbian travel and tourism marketing. An approach is applicable elsewhere with open agenda for extensions and further improvements.

Volume XX |

Certification and promotion of sustainable tourism: consumers attitude towards EU Ecolabel

Abstract: The potential of ecotourism certification system has a promising development, considering increasing demands for environmentally friendly accommodation facilities for tourists on their vacations. The importance of the certification system and its impact or influence on the economic, social environment but also on the natural environment is a very big one. The opportunities offered by the certification activity are very wide, offering a number of advantages to the local communities, but also to the tour operators in the areas where such a system is implemented. That is why the standards regarding the ecological labeling have been developed and have been introduced in the national and regional systems of life cycle analysis of the products.
The goal of the paper is to highlight the current situation, possibilities and approaches to ecological certification in tourism in Romania and to bring to the fore some fundamental elements regarding the ecological label. To determine the current attitude of the Romanian consumers towards the ecological labeling of the products, an questionnaire was carried out. It focused on identifying the perception of Romanian consumers towards the ecological label and how it influences their buying behavior.
Based on the results of this research, we could observe the high level of notoriety of eco-labels among Romanian consumers, but also a nebulosity regarding the notion of eco-label, the uncertainty making its presence among our respondents.

Volume XIX |

Landslide-susceptibility Analysis, Mapping and Validation in the Bălăcița Piedmont (South-West Romania)

Abstract: This work presents the results of applying the GIS matrix method (GMM) to the mapping and validation of landslide-susceptibility analysis in different sectors of the Bălăciţa Piedmont. The main objective of the paper concerns the achievement of landslide-susceptibility maps based on the inventory, classification and description of the landslides within the study area. The starting point was represented by the DEM and, subsequently, based on the lithological data, other determinant factors were analyzed and reclassified in a vectorial format: slope angle, slope elevation and slope aspect. After the factors that determine instability were identified for each type of mechanism, susceptibility maps were drawn. In the resulting landslide-susceptibility map a model for the validation is presented (based on the determination and calculation of a set of landslides not included in the susceptibility analysis). The landslide-susceptibility maps of the Bălăciţa Piedmont are preventive tools intended to minimize risks in the threatened areas, especially near the settlements that are located on the left slope of the Jiu river and witness the reactivation of old landslides.

Volume XIX |

Assessment of Soil Erosion by RUSLE Model using Remote Sensing and GIS – A case study of Ziz Upper Basin Southeast Morocco

Abstract: cause many environmental and socio-economic problems on -and off-site: loss of biodiversity, reduced productivity of agricultural land, siltation of dams, increased risk of flooding. The quantification of soil erosion is essential in the management and conservation of the soil and water resources. Modeling soil erosion can provide a lot of information to estimate soil loss and sediment yields at large-scale. In this study, the Revised Universal Soil Loss Equation (RUSLE) integrated into a GIS was used to quantify soil losses in the large upper watershed of Ziz (4435 km2) in southeastern of Morocco. The RUSLE parameters were estimated based on data from satellite imagery, DEM-SRTM and national watershed management plan studies. The results show that annual average of the potential soil erosion is 489.5 t. ha-1. yr-1 and the specific sediment yield is 36.4 t. ha-1. yr-1. The main sources of sediment are in the watershed upstream parts and some deposition zones are located before the catchment outlet. These soil losses contribute to the annual siltation of the Hassan Eddakhil dam by a rate of 3.5%. The application of principal components analysis to soil erosion factors shows an important influence of the soil erodibility factor (K) followed by the topographic factor (LS) then crop management factor (C). These modeling results will provide data within the Moroccan southeastern High Atlas that can constitute a road map for future soil erosion projects and it can be a useful tool for proposing soil conservation strategies.

Volume XIX |

GRASS GIS for topographic and geophysical mapping of the Peru-Chile Trench

Abstract: The study area is located along the western continental margins of South America, Peru-Chile Trench south-east Pacific Ocean, geographically encompasses 90° to 60°W longitude and 55°S to 0° latitude. The study aims to perform a spatial analysis using GRASS GIS approach applied for processing and visualizing topographic and geophysical data on the study area. Data include following raster grids: topographic SRTM_15PLUS raster grid with 15 arc-second resolution, geoid model (EGM96), geophysical fields and gravity maps (marine free-air gravity and vertically corrected free-air gravity). The thematic grids were mapped by GRASS GIS modules and visualized for comparative analysis. Spatial analysis included plotting slope aspect, profile curvature, terrain elevation and modeled topographic classes based on the neighborhood analysis. The results include visualized geophysical and topographic maps of the study area showing correlation between the geophysical fields and topographic elevation. The variety of forms of the submarine relief of the Pacific Ocean seafloor was formed as a result of complex factors: tectonic movements, dislocations, active volcanism, geologic variations in rock density, which is reflected in visualized gravity and geoid maps. The actuality of the study is explained by high potential commercial interests in deep-water mineral resource deposits, oil and gas, which make ocean seafloor studies one of the most promising topics in geoscience. At the same time, the need for programming applications for big data analysis in geosciences requires testing advanced scripting approaches in cartography. Therefore, the current paper presents a multi-disciplinary approach combining geological analysis with technical cartographic aspects of data analysis and visualization.