8 research outputs found

    Multi-temporal analysis of an agricultural landscapetransformation and abandonment (Lubietová, Central Slovakia)

    No full text
    Socio-political changes in the countries of Easternand Central Europe in the era of socialism had significant effects on agricultural landscape. Collectivisation(1950 - 1970) lost almost all of traditional agricultural landscapes.On the other hand, the phenomenon of agriculturalabandonment started to be significant after 1989. Inthe model area (part of The Polana Biosphere Reserve)these two processes that formed the agricultural landscapestructure were analysed. The analyses were carriedout using orthophotos that represented the landscapestructure in 1949, 1986 and 2006. It was found that almostcomplete extinction of the traditional agricultural landscaperepresented by a mosaic of narrow fields and permanentgrasslands occurred during the period. At the sametime, increasing trend of abandonment processes was observed.In 2006, non-forestwoody vegetation covered 48%of agricultural land.Natural reforestation as the final stageof agricultural abandonment extended to 46% on the formeragricultural land in 2006. Abandonment processeswere the most significant already in the period of socialistagriculture. To describe the changes, landscape metricssuch as Number of patches (NP), Mean patch size (MPS),Patch size standard deviation (PSSD) and Mean shape index(MSI) were used

    Comparison of land cover spatial trend model and real land cover changes: case study of Slovak Republic

    No full text
    Land change models offer an essential resource for predicting future land use and land cover (LULC) change. Model accuracy and proper validation are essential for supporting the decision process related to landscape planning. The paper's main aim is to test and analyse the accuracy of the LULC trend model based on the land cover changes from 1990 to 2012. The Land Change Modeler (TerrSet) and Corine Land Cover data for the area of Slovakia was used. The obtained model was compared with the real changes captured in the next period (2012 to 2018). Different model reliability was observed in different types of land cover. From a relatively low level of reliability to a level of more than 80% concordance. Results pointed on significance and limits of tools for predictive modelling in a specific type of landscape (included very heterogeneous natural conditions) after period of strong institutional changes impact on LULC

    Application of Fixed-Wing UAV-Based Photogrammetry Data for Snow Depth Mapping in Alpine Conditions

    No full text
    UAV-based photogrammetry has many applications today. Measuring of snow depth using Structure-from-Motion (SfM) techniques is one of them. Determining the depth of snow is very important for a wide range of scientific research activities. In the alpine environment, this information is crucial, especially in the sphere of risk management (snow avalanches). The main aim of this study is to test the applicability of fixed-wing UAV with RTK technology in real alpine conditions to determine snow depth. The territory in West Tatras as a part of Tatra Mountains (Western Carpathians) in the northern part of Slovakia was analyzed. The study area covers more than 1.2 km2 with an elevation of almost 900 m and it is characterized by frequent occurrence of snow avalanches. It was found that the use of different filtering modes (at the level point cloud generation) had no distinct (statistically significant) effect on the result. On the other hand, the significant influence of vegetation characteristics was confirmed. Determination of snow depth based on seasonal digital surface model subtraction can be affected by the process of vegetation compression. The results also point on the importance of RTK methods when mapping areas where it is not possible to place ground control points

    Agricultural Abandonment in Chosen Terrain Attributes Context – Case Study from the Poľana Unesco Biosphere Reserve (Central Slovakia)

    No full text
    Agricultural land in many post-socialist countries passed through a similar scenario of eminent changes in the past decades. One of the important milestones was the process of collectivisation (in 1950−1970), transformation to market-oriented economy (after 1989) and the following integration into the European Union. These changes were often attended by the process of agricultural abandonment. This paper presents an approach to the evaluation of agricultural abandonment by analysis of land use change in chosen terrain attributes (slope levels and altitude levels) context. It studies the area of a northern part of the Poľana UNESCO (United Nations Educational, Scientific and Cultural Organization) Biosphere reserve that represents mountain agricultural landscape. All of the analyses were realised in GIS (geographic information systems), based on the orthophotos that represented the land use structure in 1949, 1986 and 2006. Dramatic decrease in real usage of agricultural areas attended by the process of secondary succession was observed especially in steep slopes and higher altitude levels. To quantify the changes, landscape metrics such as class area (CA), number of patches (NP) and mean patch size (MPS) were used. Changes in landscape classes had an influence on landscape diversity. It was expressed by decrease in Shannon‘s diversity index (SDI) and Shannon‘s evenness index (SEI)

    Application of Fixed-Wing UAV-Based Photogrammetry Data for Snow Depth Mapping in Alpine Conditions

    No full text
    UAV-based photogrammetry has many applications today. Measuring of snow depth using Structure-from-Motion (SfM) techniques is one of them. Determining the depth of snow is very important for a wide range of scientific research activities. In the alpine environment, this information is crucial, especially in the sphere of risk management (snow avalanches). The main aim of this study is to test the applicability of fixed-wing UAV with RTK technology in real alpine conditions to determine snow depth. The territory in West Tatras as a part of Tatra Mountains (Western Carpathians) in the northern part of Slovakia was analyzed. The study area covers more than 1.2 km2 with an elevation of almost 900 m and it is characterized by frequent occurrence of snow avalanches. It was found that the use of different filtering modes (at the level point cloud generation) had no distinct (statistically significant) effect on the result. On the other hand, the significant influence of vegetation characteristics was confirmed. Determination of snow depth based on seasonal digital surface model subtraction can be affected by the process of vegetation compression. The results also point on the importance of RTK methods when mapping areas where it is not possible to place ground control points

    Visitor profiling using characteristics of socio-demographic and spatial behavior as tools to support the management of protected mountain areas

    No full text
    Protected mountain areas are attractive tourist destinations, and the number of visitors to these areas is increasing. The extension of cable car operations into the summer season is a challenge for some protected areas. Our study focuses on visitor profiles and is based on the characteristics of socio-demographic and spatial behavior of cable car users of the Chopok area (Slovakia).The methods used involve recording visitors’ itineraries through the use of GPS loggers and conducting post-trip interviews with the study participants. In order to better understand visitors’ spatial behavior, the relationship between socio-demographic characteristics and trip itinerary parameters was analyzed. Additionally, three distinct visitor profiles based on cluster analysis were found in the investigated sample. The results can be used to enrich our knowledge concerning the spatial behavior of tourists in mountain environments, and more directly, for the management of cable car destinations located within protected areas.46147

    Fluvisols Contribution to Water Retention Hydrological Ecosystem Services in Different Floodplain Ecosystems

    No full text
    Water retention is an important hydrological ecosystem service of active floodplain soils. The aim of the study was to evaluate the soil chemical, physical, and hydrological properties in Fluvisols in three different ecosystems that have an impact on water retention hydrological ecosystem services (WRHESs). We selected 16 localities along the Štiavnica River in Central Slovakia, 8 located in riparian zones (RZ), 5 in arable lands (AL), and 3 in grasslands (GL). Soil samples were collected from two layers (0–10 and 20–30 cm). In the laboratory, the soil physical (soil texture) and soil chemical properties (pH, soil organic carbon content, humic and fulvic acid ratio) were determined. Using undisturbed soil samples, the soil physical characteristics (particle density, bulk density, porosity, and actual soil moisture–SMa) were measured. With the help of pedotransfer functions, hydrological soil properties (field water capacity–FWC, wilting point–WP, available water capacity–AWC) were estimated. The recorded properties differed between the localities, ecosystems, and two layers. The SMa values showed a higher soil water retention potential of extensively used ecosystems, such as GL and RZ. However, the hydrological properties estimated by pedotransfer functions (FWC, WP, AWC) showed a higher soil water retention potential in AL localities. This indicated that for calculations, selected pedotransfer functions (particle size fractions, organic matter, and bulk density) and other soil or ecosystem properties (e.g., vegetation cover, meteorological conditions) have an impact on WRHESs. One such soil factor can be the quality of organic matter. On the basis of the results of the ANOVA, significant differences emerged between the different ecosystems for selected basic chemical, physical, and hydrological properties. The effect of the soil layer on the soil properties was revealed only in the case of SOC. The results indicated the effect of different ecosystems on soil WRHES and the importance of extensively managed ecosystems, such as RZ and GL. From this point of view, the reduction in the RZ and GL areas during a period of the last 70 years is negative. The findings should be taken into account in future sustainable floodplain management and landscape architecture
    corecore