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Wyszukujesz frazę "land cover" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Agricultural land cover changes in metropolitan areas of Poland for the period 1990–2012
Autorzy:
Nalej, Marta
Powiązania:
https://bibliotekanauki.pl/articles/1035935.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Land cover changes
agricultural land
metropolitan areas
Polska
GIS
Opis:
Agricultural land covers more than half the area of metropolitan areas in Poland, and is therefore particularly prone to the influences of the processes associated with their development. The aim of the study was to analyse changes in agricultural land cover within the metropolitan areas of Poland for the years 1990–2012; and to capture their dynamics, types and directions. The percentage share of the total study area, for each of the forms of agricultural land cover and their changes were traced, with the spatial distribution of the changes also being determined. The results of the study show that in metropolitan areas, agricultural land cover is undergoing transformations that do not result in the loss of agricultural lands, or that involve a decrease in surface area due to their change into anthropogenic forms of land cover. The greatest transitions occurred between 2000 and 2006 and were observed in the outer zones of metropolitan areas.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2016, 20, 2; 39-45
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temporal changes of land cover in relation to chosen environmental variables in different types of landscape
Autorzy:
Zachwatowicz, Maria
Giętkowski, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2034156.pdf
Data publikacji:
2010-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Land cover changes
redundancy analysis (RDA)
abiotic components
Opis:
Good understanding of relations between historical land cover changes and accompanying environmental components should be a starting point for landscape modelling and forecasting its future patterns. Analysis presented here focuses on the relationships between chosen environmental conditions and agricultural land cover changes in the period of over 150 years. The study area consisted of fragments of Nidziańska Basin and South Pomeranian Lake District macroregions. The land cover data was derived from a number of archival and contemporary topographical maps. Long-term changes of land cover were then related to underlying landscape elements (geological deposits and morphometric landforms). With the help of canonical analysis major correlations were identified and described.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2010, 14; 33-45
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Land cover as a factor affecting the structure and modifying the dynamics of a landscape system
Autorzy:
Solon, Jerzy
Lechnio, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/2036141.pdf
Data publikacji:
2013-12-30
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Land use
landscape structure
land cover classification
landscape metrics
landscape dynamics
Opis:
The key objective of the study is to analyse structural characteristics of the landscape from the viewpoint of the structure’s durability, characteristics and speed of change. The research focused on the area surrounding Płock. In the analysed period (1987-2010) slight changes were detected with regard to the land cover, though they were significant in terms of the natural environment. No single dominant process determining land cover change was identified. Fluctuations prevailed (producing a slightly different picture in each microregion), with a fixed pattern maintained. Distribution, shape and spatial location of land cover types are only partly determined by land lie and habitat quality. Fragmentation of the terrain is relatively high, which reflects intense land use, at the same time indicating opportunities to preserve the wildlife and vegetation typical for agrocenoses.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2013, 17, 4; 34-41
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-temporal analysis of vegetation reflectance using MERIS data in the Czech Republic
Autorzy:
Štych, Přemysl
Malíková, Lucie
Kříž, Jan
Holman, Lukáš
Powiązania:
https://bibliotekanauki.pl/articles/2037394.pdf
Data publikacji:
2014-06-25
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
High temporal data
MERIS
Czech Republic
land cover
classification
Opis:
Accurate high temporal resolution data is a very important source of information for understanding processes in the landscape. High temporal and spectral resolution data enable the monitoring of dynamic landscape processes. For this reason, since 2008 a receiving station for Metosat, NOAA and Envisat data has been installed at the Department of Applied Geoinformatics and Cartography, Faculty of Science, Charles University in Prague. The aim of this study is to analyse the spectral characteristics of vegetation using MERIS data in the Czech Republic. Spectral characteristics of vegetation were examined both by analysing changes in reflectivity as well as by utilising vegetation indices. Vegetation in forests and agricultural land was evaluated. The results present the spectral characteristics of selected associations of vegetation based on MERIS data and a discussion of the methods of multitemporal classification of land cover.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2014, 18, 2; 30-34
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differentiation between forms of urban development using the object-oriented classification method with Central Warsaw as the example
Autorzy:
Zaremski, Karol
Szmajda, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/2032468.pdf
Data publikacji:
2006-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
object-oriented classification
land cover
land use
urbanized areas
Ikonos
Warsaw
eCognition
segmentation
classification
Opis:
The aim of the paper is to present automated methods of discrimination of urban development forms using object-oriented classification in high-resolution images taken by the Ikonos satellite. The object-oriented classification makes possible to describe individual classes using not only the spectral reflection values but also the shapes, textures and topology of objects. The classification process as such is based on the theory of fuzzy sets. The research covered an area of 25 km,., situated in central Warsaw. As a result of object-oriented classification, five classes of development typical of large cities were distinguished and described.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2006, 12; 315-327
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Potential of Fuzzy Logic for Quantitative Land Cover Change Analysis Basing on Historical Topographic Maps
Autorzy:
Zachwatowicz, Maria
Powiązania:
https://bibliotekanauki.pl/articles/2035483.pdf
Data publikacji:
2011-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
old topographic maps
land cover change
fuzzy sets
Kappa statistics
quantitative analysis
Opis:
This paper describes an approach that allows to reduce error propagation when comparing historical topographic maps. By linking the fuzzy set theory with simple map algebra and Kappa statistics, the uncertainty resulting from dissimilar quality of the maps can at least be partly eliminated and a distinction between ‘true’ and ‘false’ land cover changes can be made.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2011, 15; 231-240
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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