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    Wyświetlanie 1-8 z 8
    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:
    Floodway design affected by land use changes in an urbanized area
    Autorzy:
    Suharyanto, Agus
    Devia, Yatnanta P.
    Wijatmiko, Indradi
    Powiązania:
    https://bibliotekanauki.pl/articles/1844337.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    channel dimensions
    channel normalization
    floodway
    land cover changes
    land use
    runoff coefficient
    Opis:
    A flood occurs for many reasons, such as excessive rainfall, runoff coefficient, or an insufficient river channel capacity. The discharge flowing through the floodway depends on the maximum main river dimension that can be normalized. LU/LC changes are affected by runoff discharge, and runoff discharge is affected by the floodway design. The study discusses the effect of land use (LU) or land cover (LC) changes and the design of floodway channel dimensions in the Kali Kemuning watershed, East Java Province, Indonesia. The Nakayasu synthetic unit hydrograph has been used to analyse the runoff discharge, and the Hydrologic Engineering Center’s River Analysis System software analysed the hydraulic properties of river and floodway channels. Results show that the floodway channel design is determined by LU/LC conditions, and the river channel is normalized toward its maximum dimensions. Normalized channel depths and widths vary from 4 to 7 m and 16 to 46 m, respectively. The floodway channel is rectangular, with a bottom width of 10 m and depth of 4.5 m. With the runoff coefficient equal to 0.75, these normalized channel and floodway dimensions are suitable for the flood up to the 100-year return period runoff discharge.
    Źródło:
    Journal of Water and Land Development; 2021, 49; 259-266
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The assesment of land cover in the Nowy Targ commune with particular focus on the area of Natura 2000
    Autorzy:
    Prus, B.
    Budz, Ł
    Powiązania:
    https://bibliotekanauki.pl/articles/100268.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
    Tematy:
    Natura 2000 areas
    land cover changes
    landscape transformations
    Natura 2000
    krajobraz
    przekształcenia krajobrazu
    Opis:
    The rural landscape in Poland has been changing for the past several dozen years. The changes are visible in the land use and land cover. Technological progress, changes in people’s outlook and a low profitability of agriculture resulted in transformations of rural landscapes, especially in the areas of high level of land fragmentation, as it is the case in the south part of Poland. These changes are accompanied by growing awareness of environmental or cultural landscape protection related issues. Recent years have also brought new forms of environmental protection, for example the programme Natura 2000, being the result of agreements with European Union. The network of Natura 2000 cover the areas of special protection of birds, habitats, and according to the Act on Nature Conservation – areas of special interest for the Community. The goal of this form of protection is a preservation of valuable or engendered elements of biodiversity. The question arises then whether in the era of landscape transformations and changes of land cover qualifying a particular area as part of Natura 2000 network has any influence on the way of land use. The aim of the article is an analysis and evaluation of land cover changes, also in the areas covered by Natura 2000 programme, within the piedmont commune of Nowy Targ in Małopolskie Voivodeship. Moreover, a thesis is proposed that submontane lands, specifically used, due to large terrain height differences, are faced with less intense urbanization pressures and land transformations. Is it also the case of the Nowy Targ commune, covered in more than 22% by the Natura 2000 areas?
    Źródło:
    Geomatics, Landmanagement and Landscape; 2014, 4; 37-48
    2300-1496
    Pojawia się w:
    Geomatics, Landmanagement and Landscape
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potential influence of urban sprawl and changing land surface temperature on outdoor thermal comfort in Lagos State, Nigeria
    Autorzy:
    Obiefuna, Jerry N.
    Okolie, Chukwuma J.
    Nwilo, Peter C.
    Daramola, Olagoke E.
    Isiofia, Lawrence C.
    Powiązania:
    https://bibliotekanauki.pl/articles/1050781.pdf
    Data publikacji:
    2021-03-31
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    Landsat imageries
    land cover changes
    heat stress
    outdoor thermal comfort
    universal thermal climate index
    Opis:
    The continuous monitoring of the relationship between land surface temperature (LST) and land cover change is imperative for an inquiry into the potential impact of LST on human well-being, including urban outdoor thermal comfort in Lagos State, Nigeria. Using Landsat imagery, this study assessed land cover and LST changes from 1984 to 2019. Land cover was extracted, LST was determined from Landsat imageries and the land cover changes were linked to LST using the contribution index (CI). Afterwards, the universal thermal climate index (UTCI) was calculated to determine the heat stress levels. Findings confirm the presence of urban sprawl and new growth areas in previously rural Local Government Areas (LGAs) eastward, northward and westward of Lagos metropolis and in regions which lie on the fringe of the state’s border with Ogun State. Also, a very strong link between high LST intensities and increasing concentration of urban areas in rapidly growing LGAs has been observed. This link further confirms the increased warming of the state, with an increase in mean LST of 2.16°C during 1984–2019. The UTCI which was used to gauge the influence of LST on outdoor thermal comfort ranged from moderate to strong heat stress levels. This study helps to strengthen the case for definite policies and actions which should be aimed at achieving moderate urban development through increased urban tree canopy/green infrastructure provision and carbon sequestration activities in urban design/landscape design, in Lagos State.
    Źródło:
    Quaestiones Geographicae; 2021, 40, 1; 5-23
    0137-477X
    2081-6383
    Pojawia się w:
    Quaestiones Geographicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Land use changes in the Mała Wisła Valley in the western part of the Oświęcim Basin from the 18th to modern time
    Zmiany zagospodarowania Doliny Małej Wisły w zachodniej części Kotliny Oświęcimskiej od XVIII w. do czasów współczesnych
    Autorzy:
    Czaja, J.
    Rahmonov, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/87674.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Geograficzne
    Tematy:
    cartographic sources
    historical maps
    land use
    land cover changes
    Mała Wisła
    źródła kartograficzne
    mapy historyczne
    użytkowanie ziemi
    zmiany pokrycia terenu
    Opis:
    The aim of this study is to reconstruct land use on the floodplain of the changes in the valley was based on archival materials, such as the plan of the Wisła valley from the mid-18th c., and the Prus-sian and Austrian topographical maps from the 1860s. As the analysis of land use changes in the floodplain of the Mała Wisła valley indicates, in the years 1754-1860 the biggest change referred to the area of forests and shelterbelts, because in a hundred years it decreased three times, i.e. from 3.18 km2 to 1.05 km2. Other big changes include a diminished number and area of fish ponds, as well as smaller surface of the hydrographic network. The layout and area of low density dwellings remained almost unchanged, as a reported increase in the surface area of this form of land use was only by about 0.4%. Significant changes in the surface of ponds and water reservoirs took place in the 1950s, when a dam reservoir was built in Goczałkowice. Its caused an increase the ponds and reservoirs surface to 23.45 km2, which is over 64.7% of the grounds.
    Celem niniejszej pracy jest rekonstrukcja zagospodarowania zalewowej strefy doliny Małej Wisły od XVIII w. do czasów współczesnych. Analizę zmian zagospodaraowania doliny przeprowadzono na podstawie materiałów archiwalnych, jak plan doliny Wisły z połowy XVIII w. oraz pruskie i austriackie mapy topograficzne z lat 60. XIX w. Z analizy zmian zagospodarowania zalewowej strefy doliny Małej Wisły, w latach 1754-1860, wynika że: największym zmianom uległa powierzchnia lasów i zadrzewień, bowiem w ciągu 100 lat trzykrotnie się zmniejszyła z 3,18 km2 do 1,05 km2, dużym zmianom uległa również liczba i powierzchnia stawów hodowlanych oraz powierzchniowa sieć hydrograficzna. Znaczące zmiany powierzchni stawów i zbiorników wodnych nastąpiły w latach 50. XX w., kiedy wybudowano w Goczałkowicach. Jego budowa spowodowała wzrost powierzchni stawów i zbiorników wodnych do 23,45 km 2 co stanowi ponad 64,7 % użytków w obrębie analizowanej doliny.
    Źródło:
    Prace Komisji Krajobrazu Kulturowego; 2017, 35; 101-115
    1896-1460
    2391-5293
    Pojawia się w:
    Prace Komisji Krajobrazu Kulturowego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of Shoreline and Associated Landuse/Land cover Changes along Part of Lagos Coastline, Nigeria
    Autorzy:
    Akinluyi, F. O.
    Adebola, A. O.
    Adeseko, A. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/100826.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Śląski. Wydział Nauk o Ziemi
    Tematy:
    shoreline changes
    Land use
    Land cover
    LULC
    accretion
    erosion
    Lagos
    linia brzegowa
    zmiany
    pokrycie terenu
    użytkowanie terenu
    erozja
    Nigeria
    Opis:
    The city of Lagos, Nigeria has undergone rapid increase in population due to economic and commercial activities. As a result of this, there has been a persistent change in Land use/Land cover (LULC) of the city and shoreline through the years. This observation necessitated the use of multi-temporal satellite data to characterize shoreline changes between 1984 and 2016. Therefore, the study attempts to determine the shoreline change during the study period and the coastal land use and land cover (LULC) of the study area. Satellite data was acquired and subjected to some image processing techniques such as image enhancement, supervised classification, and shoreline extraction. The digital shoreline analysis system (DSAS) in ArcGIS environment was utilized to cast transects and calculate statistical parameters for the shoreline and spatial data used was Landsat TM, ETM and OLI for the years 1984, 1990, 2000, 2004 and 2016 respectively. The results indicate that LULC changes in built-up areas increases rapidly during the years (1984-2015) from 12.2 -36.2%, water bodies increased from (1984-1990-2000) from 52%, 54%, 52% and reduces to 47.4% in the year 2015 while vegetation cover reduces drastically through the year range from 36%, 33%, 29%, 24% and 16%. A total of 1034 transects were generated with 100m spacing and the average rate of change was calculated for the 32 year period (1984-2016). The linear regression rate (LRR) shoreline result shows a mean of -0.59m/year where 73.1% of transect fall under erosion and 61.8% accretion respectively. The end point rate (EPR) and net shoreline movement (NSM) analysis revealed mean shoreline change of -0.57m/year and -18.1m/period respectively from 1984-2016. The EPR and NSM results both revealed that 231 transect or 22.3% experienced erosion, and 805 transect or 77.9% with accretion. It was observed that significant accretion rate recorded along most sections of the shorelines is attributed to beach nourishment activities.
    Źródło:
    Contemporary Trends in Geoscience; 2018, 7, 1; 59-71
    2299-8179
    Pojawia się w:
    Contemporary Trends in Geoscience
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluating the impact of expansion on urban thermal surroundings: A case study of Lahore Metropolitan city, Pakistan
    Autorzy:
    Khan, U.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2049676.pdf
    Data publikacji:
    2020
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    land cover
    land use
    urban sprawl
    thermal environment
    landscape change
    surface temperature
    spectral radiance measurement
    Pakistan
    Landscape Changes
    LULC
    LST
    Opis:
    Urbanization directly affects the existing infrastructure, landscape modification, environmental contamination and traffic pollution especially if there is lack of urban planning. Recently, the rapid urban sprawl has resulted in less developed green areas and has devastating environmental consequences. This study was aimed to study the past urban expansion rates and Measure LST from satellite data. The Land use land cover (LULC) maps of years 1996, 2010, 2013, and 2017 were generated using Landsat satellite images. Four main classes i.e. water, urban, bare land and vegetation were identified using unsupervised classification with iterative self-organizing data analysis (isodata) technique. The LST from satellite thermal data can be derived from different procedures:atmospheric, radiometric calibrations and surface emissivity corrections, classification of spatial changeability in land-cover. Different methods and formulas were used in the algorithm that successfully retrieves the land surface temperature to help us study the thermal environment of the ground surface. To verify the algorithm, the land surface temperature and the near-air temperature were compared. The results showed that, From 1996-2017 urban areas increased to about considerable increase of about 48%.few areas of city also shown in reduction in LST from year 1996-2017that actually began their transitional phase from rural to urban LULC.Mean temperature of city increased averagely about 1ºC each year in the month of October. The green and vegetative areas witnessed a decrease in area while higher number of pixels increased in urban class.
    Źródło:
    Environment, Earth and Ecology; 2020, 4, 1; 38-49
    2543-9774
    2451-4225
    Pojawia się w:
    Environment, Earth and Ecology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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