- Biogeography (19)
- Climatology (36)
- Environment (76)
- Geomorphology (57)
- GIS and Remote Sensing (18)
- Human and economic geography (62)
- Hydrology (54)
- Regional geography (45)
- Tourism (42)
- Various (33)
Abstract: Landscape health is a primary concern for management of resources and restoration of habitats of various fauna and avifauna in watershed. We derived landscape health index using Landsat Thematic Mapper satellite data of 1987 and 2011. Standard precipitation index, normalized difference water index, normalized difference moisture index, normalized difference barren land index, normalized difference vegetation index, human disturbance, height, slope, land use/ land cover were integrated to assess landscape health and habitat disturbance in Lower Barpani watershed in India. Landscape health was categorized into five groups, i.e. very good, good, moderate, poor and very poor. Spatial-temporal variation of landscape health revealed that the area under very good health has degraded from 45% in 1987 to only 1% registering a decrease of 97.26%. The area under good, moderate, poor and very poor categories of landscape health experienced positive change. Habitat disturbance in forests and wetlands has also increased due to shifting agriculture, deforestation and cultivation in wetlands. Remotely sensed indices of landscape health and habitat disturbance can effectively be utilized for prioritizing ecological restoration across space at various scales.
Abstract: The demographic development of Vojvodina settlements takes place in accordance with the laws of the urbanization process, which is manifested in two phases: the first – after the Second World War until the beginning of the 80’s of the 20th century, which is characterized by a polycentric polarization, and the second – monocentric polarization, which is still present. Since the settlements leave a fundamental mark on the cultural landscape and are the main carriers of the functional organization and focal transformation of geospace, the paper analyzes spatial-demographic and functional determinants of development of the settlement network of the South Banat County (district) on the basis of quantitative and qualitative indicators. The settlement network includes 94 settlements distributed on the territory of 8 municipalities: Pančevo1, Vršac, Kovin, Alibunar, Bela Crkva, Kovačica, Opovo and Plandište. The time period of the analysis and statistical survey of demographic components in the settlement network is observed through three inter-census periods, as follows: 1981-1991, 1991-2002 and 2002-2011. The analysis of demographic components has indicated that two poles of population concentration dominate within the network of settlements in this district: Pančevo (a sub-centre of the Belgrade – Novi Sad metropolitan area) and Vršac in comparison to other urban centres and the municipality centres.
Abstract: The touristic value of geoheritage sites has an important role in the decision of the tourists to visit certain destination. Also, the same site can help the people working in tourism to decide about the investments in certain geosite. In order to avoid subjectivity in assessing the value, several quantitative evaluation methods of objects are created, which criteria don’t differ too much. Mostly scientific values, representativeness, wholeness as well as tourist equipment are being evaluated. Evaluation models aim to draw attention to the current conditions and the potential every evaluated geosite has. This paper presents an analysis of the chosen quantitative models of geoheritage evaluation, where their effectiveness is checked by the evaluation of three loess – paleosol profiles in Vojvodina, from the Geoheritage List of Serbia. The differences between the models are influenced by the degree of accuracy in the assessment, where for some models, the criteria is not clear when assigning the ratings.
Abstract: The aim of this study is to identify, assess and rank the geomorphosites with touristic potential from the central – southern part of the Parâng Mountains. The touristic assessment of geomorphosites was based on the method elaborated by J.P. Pralong in 2005, which was initially applied on two areas from the Alps. The touristic value of the geomorphological sites is the arithmetical mean result of four values (scenic, scientific, cultural and economic). For each value, points were scored, according to 4 – 6 criteria, highlighting, where necessary, the particularities generated by the studied area. The ranking of geomorphosites represents the base for their inclusion in promotional materials elaborated by authorities or private operators from the region. The promotion of landforms that have acquired a certain value represents, besides the promotion of cultural attractions, the starting point in the touristic development which the region aims at.
Abstract: Mapping of snow avalanche tracks based on topographic maps, aerophotos and field data to achieve inventories for the whole mountaineous areas in Romania is an important step in snow avalanche risk assessment and other related geomorphic processes. This requires experience and it is a time consuming process. In the absence of field data, the process of snow avalanche tracks mapping is influenced by the subjectivity of those who digitize. Thus, we propose a semi-automated method for detection of snow avalanche tracks based mainly on geomorphometric parameters that can be extracted from the Digital Elevation Model (DEM) like slope gradient, plan and profile curvature, mean curvature, runoff.In this study we used an object based analysis to detect snow avalanche tracks in central part of the Făgăraș Mts. This approach has two steps, segmentation and classification. First, we segmented the area based on plan curvature (which is the most important parameter that describes these snow avalanche tracks) in order to obtain objects. In the process of classification we added other conditions such as fuzzy function for slope gradient, thresholds for altitude and runoff and a shape index of objects. The results obtained were very close to the mapped tracks using digitizing techniques. The maps resulted from the classification were compared to the those resulted from digitizing in both number of objects and spatial agreement of the class of objects. There was a very good fit in case of the number of objects and total area of objects. The method could be improved if we apply on high resolution DEMs and also on more case studies with different topography and existing vector database.
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