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    Tytuł:
    A multicriteria approach to different land use scenarios in the Western Carpathians with the SWAT model
    Autorzy:
    Kowalczyk, Agnieszka W.
    Grabowska-Polanowska, Beata
    Garbowski, Tomasz
    Kopacz, Marek
    Lach, Stanisław
    Mazur, Robert
    Powiązania:
    https://bibliotekanauki.pl/articles/27312653.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    catchment area
    land use
    soil erosion
    SWAT model
    Western Carpathians
    Opis:
    Water erosion in mountainous areas is a major problem, especially on steep slopes exposed to intense precipitation. This paper presents the analysis of the topsoil loss using the SWAT (Soil and Water Assessment Tool) model. The SWAT model is a deterministic catchment model with a daily time step. It was designed to anticipate changes taking place in the catchment area, such as climate change and changes in land use and development, including the quantity and quality of water resources, soil erosion and agricultural production. In addition to hydrological and environmental aspects, the SWAT model is used to address socio-economic and demographic issues, such as water supply and food production. This program is integrated with QGIS software. The results were evaluated using the following statistical coefficients: determination (R2), Nash-Sutcliff model efficiency (NS), and percentage deviation index (PBIAS). An assessment of modelling results was made in terms of their variation according to different land cover scenarios. In the case of the scenario with no change in use, the average annual loss of topsoil (average upland sediment yield) was found to be 14.3 Mg∙ha-1. The maximum upland sediment yield was 94.6 Mg∙ha-1. On the other hand, there is an accumulation of soil material in the lower part of the catchment (in-stream sediment change), on average 13.27 Mg∙ha-1 per year.
    Źródło:
    Journal of Water and Land Development; 2023, 57; 130--139
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the surface water quality in the Szreniawa River catchment area
    Autorzy:
    Kowalczyk, Agnieszka W.
    Kopacz, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/1844411.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    composition of agricultural crops
    nitrogen concentration
    phosphorus concentration nitrogen load
    phosphorus load
    precipitation
    total suspended solids
    Opis:
    The intensive agricultural use of the land affects both quantity and quality of river water in the catchment area. Such impact is visible also in the Szreniawa River catchment in the Małopolskie Voivodeship. The combination of intensive plowing and soil susceptibility to water erosion are the main causes of soil and nutrients depletion during the heavy rainfall. The aim of the study is to determine changes in the water quality in the Szreniawa River catchment compared to the agriculture use and precipitation level. The quality of surface water has been analysed in the river catchment area in three sampling points. The concentration of the total suspended soils in the samples collected after heavy rainfall in August 2017 reached a value of 837 mg·dm–3. The average concentrations of N-NO3 in the years of 2016–2019 ranged from 0.16 to 13.46 mg·dm–3, with the highest values in the summer (up to 13.46 mg·dm–3). The concentration of N-NH4 and P-PO4 in the Szreniawa water was affected by precipitation. The highest value of average concentration of N-NH4 3.00 mg·dm–3 was recorded in the autumn of 2019 in the middle section of the river. The highest value of P-PO4 0.90 mg·dm–3 was recorded in the autumn of 2019 mostly due to water erosion of the loess areas. Erosion has been caused by the short-term heavy rainfall. As a result, suspended solids, soluble and insoluble phosphorus compounds leaked to the river.
    Źródło:
    Journal of Water and Land Development; 2020, 47; 105-112
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of runoff of suspended solids on quality of surface water: Case study of the Szreniawa River
    Wpływ zawiesiny glebowej wymywanej ze zlewni Szreniawy na jakość wód powierzchniowych
    Autorzy:
    Kowalczyk, Agnieszka
    Smoroń, Sylwester
    Kopacz, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/293336.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    cambisols
    chernozems
    concentration of NO3-N
    NH4-N
    PO4-P
    dusty soils
    loess
    suspended solids
    czarnoziemy
    gleby brunatne
    gleby pyłowe
    lessy
    stężenie N-NO3
    N-NH4
    P-PO4
    zawiesina glebowa
    Opis:
    Research was conducted in selected points of the Szreniawa River basin (area 712 km2) located in the Miechowska Upland and the Proszowice Plateau. In the years 2016–2017 water samples from the Szreniawa River were taken monthly and the concentration of suspended solids was determined by filtration. The concentration of biogenic components NO3-N, NH4-N and PO4-P was determined by a colorimetric method, using an automatic flow analyser. The average concentration of suspended solids ranged from 192 to 390 mg∙dm–3 (with minimum values of 5–20 mg∙dm–3 and maximum 837–3937 mg∙dm–3) at individual points. There was an upward trend between the content of suspended solids and the concentration of biogenic components. An extremely high concentration of suspended solids happened during storm-like precipitation at the end of June 2017 and amounted to 3937.2 mg∙dm–3. The concentration of biogenic components was also highest in this period and amounted to 2.50 mg∙dm–3 of NO3-N, 0.49 mg∙dm–3 of NH4-N and 1.18 mg∙dm–3 of PO4-P. At low precipitation the concentration of suspended solids was also low (5.0 mg∙dm–3). A similar pattern was observed for the concentration of biogenic components which was 0.39 mg∙dm–3 of NO3-N, 0.17 mg∙dm–3 of PO4-P and 0.08 mg∙dm-3 of NH4-N.
    Badania prowadzono w wybranych punktach na terenie zlewni Szreniawy (o powierzchni 712 km2), położonej na wyżynie Miechowskiej i Płaskowyżu Proszowickim. W latach 2016–2017 pobierano w cyklu miesięcznym próbki wody z rzeki Szreniawy i oznaczano w nich ilości zawiesiny glebowej (metodą filtracji) oraz stężenie N-NO3, N-NH4 i P-PO4 – metodą kolorymetryczną, za pomocą automatycznego analizatora przepływowego. Średnia zawartość zawiesiny glebowej wynosiła od 192 do 390 mg∙dm–3 (min. 5–20, max 837–3937). Stwierdzono rosnący trend zależności między zawartością zawiesiny glebowej a stężeniem składników biogennych. Przykładem ekstremalnie dużej zawartości zawiesiny glebowej był koniec czerwca 2017 r., gdy po opadach o charakterze nawałnicowym wynosiła ona aż 3937,2 mg∙dm–3. Wtedy też stężenie składników biogennych było największe i kształtowało się na poziomie 12,50 mg∙dm–3 N-NO3, 0,49 mg∙dm–3 N-NH4 oraz 1,18 mg∙dm–3 P-PO4. W przypadku niewielkich opadów zawartość zawiesiny glebowej była mała i wynosiła 5,0 mg∙dm–3, a stężenie N-NO3 wynosiło 0,39 mg∙dm–3, P-PO4 – 0,17 mg∙dm–3 i N-NH4 – 0,08 mg∙dm–3.
    Źródło:
    Journal of Water and Land Development; 2019, 41; 83-90
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling of long term low water level in the mountain river catchments area
    Autorzy:
    Kopacz, Marek T.
    Kowalewski, Zbigniew
    Santos, Luis
    Mazur, Robert
    Lopes, Vasco
    Kowalczyk, Agnieszka
    Bar-Michalczyk, Dominika
    Powiązania:
    https://bibliotekanauki.pl/articles/2048521.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    land use changes
    low water level
    nitrogen load
    phosphorus load
    small mountain catchments
    Opis:
    Changing atmospheric conditions, including above all the deepening extreme weather phenomena, are increasing from year to year. This, in consequence, causes an increase in the incidence of low outflows. The study compares low water levels for two catchments: Biała Woda and Czarna Woda, and phosphorus and nitrogen load using the Nutrient Delivery Ratio (NDR) model in InVEST software. The objective of the NDR is to map nutrient sources from catchment area and transfer to the river bed. The nutrient loads (nitrogen and phosphorus) spread across the landscape are determined based on a land use (LULC) map and associated loading rates described in literature. The studies have shown that low water levels have been more common recently and pose the greatest threat to the biological life in the aquatic ecosystems. The structure of land use is also of great importance, with a significant impact on the runoff and nitrogen and phosphorus load. Phosphorus and runoff from surface sources to the water of Biała Woda and Czarna Woda catchments area has been reduced in forested areas. Only higher run-offs are observed in the residential buildings zone. The nitrogen load was also greater in the lower (estuary) parts of both catchments, where residential buildings dominate.
    Źródło:
    Journal of Water and Land Development; 2021, 51; 225-232
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The pollution of surface water in the agricultural catchment against the background of agrarian structure and production intensity
    Autorzy:
    Lach, Stanisław K.
    Kowalczyk, Agnieszka
    Kopacz, Marek T.
    Kowalewski, Zbigniew
    Jakubiak, Mateusz
    Mazur, Robert
    Grabowska-Polanowska, Beata
    Powiązania:
    https://bibliotekanauki.pl/articles/2203557.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    agrarian structure
    intensive agricultural production
    land use
    surface water quality
    Szreniawa River catchment
    Opis:
    The intensification of agricultural production is one of the factors determining economic development. Increasing mechanisation and use of fertilisers in agriculture lead to higher yields, but at the same time they can pose a threat to the environment. The overuse of chemical fertilisers contributes to increased concentration of nutrients in agricultural runoff. One of such areas is the Szreniawa River catchment, the study area located in the southern part of Poland. In this catchment, intensive mostly mechanical ploughing is applied in, for instance, vegetable production. The area has loess soils, which with intensive ploughing are susceptible to erosion. The study aims to determine changes in the quality of flowing waters against the background of agricultural production and land-use characteristics. Surface waters were classified as class II and occurred at all analysed points. The highest concentrations of N-NO3 , N-NH 4 and P-PO 4 were found at a point in the middle of the catchment (lower part of research area). There, the lowest concentrations were recorded in 2018, which was related to the amount of precipitation during the growing season. On the other hand, the volume of plant and animal production closely correlated with the quality of surface water in the area. This was also confirmed by the land use structure. In conclusion, intensive agricultural production, mainly in terms of plough tillage causes significant hazards associated with soil erosion especially on agriculturally sensitive soils, although it provides good yields.
    Źródło:
    Journal of Water and Land Development; 2023, 56; 242--248
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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