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Wyszukujesz frazę "Walczak, J." wg kryterium: Autor

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    Wyświetlanie 1-10 z 10
    Tytuł:
    Spatial characteristic of hydro-physical properties in arable mineral soils in Poland as illustrated by field water capacity [FWC]
    Autorzy:
    Walczak, R.
    Ostrowski, J.
    Witkowska-Walczak, B.
    Slawinski, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/26253.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    mineral soil
    field water capacity
    Polska
    hydrophysical property
    soil
    Źródło:
    International Agrophysics; 2002, 16, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spatial characteristics of water conductivity in the surface level of Polish arable soils
    Autorzy:
    Walczak, R
    Ostrowski, J.
    Witkowska-Walczak, B.
    Slawinski, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/26447.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    surface level
    Polska
    water permeability
    soil
    water conductivity
    water retention
    arable soil
    water balance
    Źródło:
    International Agrophysics; 2002, 16, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spatial characteristics of potentially useful retention in Polish arable soils
    Autorzy:
    Walczak, R
    Ostrowski, J.
    Witkowska-Walczak, B.
    Slawinski, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/25637.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    retention
    soil water
    Polska
    hydrophysical property
    soil
    soil property
    plant growth
    potentially useful retention
    arable soil
    Źródło:
    International Agrophysics; 2002, 16, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Yield prediction for winter wheat in Eastern Poland [Grabow] using the access-II model
    Autorzy:
    Henric, J.F.
    Legros, J.P.
    Slawinski, C.
    Walczak, R.T.
    Powiązania:
    https://bibliotekanauki.pl/articles/25677.pdf
    Data publikacji:
    1996
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    root length
    biomass calculation
    Polska
    Grabow
    modelling
    winter wheat
    soil evaporation
    ACCESS-II model
    leaf growth
    yield prediction
    wheat
    plant transpiration
    stress
    water content
    Źródło:
    International Agrophysics; 1996, 10, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Water conductivity of Arctic zone soils (Spitsbergen)
    Autorzy:
    Witkowska-Walczak, B.
    Slawinski, C.
    Bartminski, P.
    Melke, J.
    Cymerman, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/25209.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    water conductivity
    soil
    grain size
    distribution
    pore size
    Arctic zone
    Spitsbergen
    Opis:
    The water conductivity of arctic zone soils derived in different micro-relief forms was determined. The greatest water conductivity at the 0-5 cm depth for the higher values of water potentials (> -7 kJ m-3) was shown by tundra polygons (Brunic-Turbic Cryosol, Arenic) – 904-0.09 cm day-1, whereas the lowest were exhibited by Turbic Cryosols – 95-0.05 cm day-1. Between -16 and -100 kJ m-3, the water conductivity for tundra polygons rapidly decreased to 0.0001 cm day-1, whereas their decrease for the other forms was much lower and in consequence the values were 0.007, 0.04, and 0.01 cm day-1 for the mud boils (Turbic Cryosol (Siltic, Skeletic)), cell forms (Turbic Cryosol (Siltic, Skeletic)), and sorted circles (Turbic Cryosol (Skeletic)), respectively. In the 10-15 cm layer, the shape of water conducti-vity curves for the higher values of water potentials is nearly the same as for the upper layer. Similarly, the water conductivity is the highest – 0.2 cm day-1 for tundra polygons. For the lower water potentials, the differences in water conductivity increase to the decrease of soil water potential. At the lowest potential the water conductivity is the highest for sorted circles – 0.02 cm day-1 and the lowest in tundra polygons – 0.00002 cm day-1.
    Źródło:
    International Agrophysics; 2014, 28, 4
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Agrophysical methods of water retention control in the rural areas
    Autorzy:
    Walczak, R.T.
    Glinski, J.
    Slawinski, C.
    Lamorski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/24559.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    rural area
    agrophysical method
    Europe
    water retention
    flood control
    Źródło:
    International Agrophysics; 1998, 12, 4
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aspekt hydrologiczny w modelu EURO-ACCESS [Agroclimatic Change and European Soil Suitability]
    Hydrological aspect in Euro-Access model
    Autorzy:
    Walczak, R T
    Slawinski, C.
    Sobczuk, H.A.
    Glinski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1628415.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    gleby
    profile glebowe
    makropory
    spekania
    osiadanie gleb
    wilgotnosc gleby
    zmiany klimatyczne
    intensywnosc opadow
    przeplyw wody
    przeplyw preferencyjny
    splyw powierzchniowy
    projekt EURO-ACCESS
    modele numeryczne
    soil
    soil profile
    macropore
    soil crack
    soil subsidence
    soil moisture
    climate change
    precipitation intensity
    water flow
    preferential flow
    surface flow
    numerical model
    Opis:
    This paper presents the aim and realization procedures of the project EURO- ACCESS (Agroclimatic Change and European Soil Suitability, No. EV5VCT920129, CIPA3510PL923399, CIPDCT930022, CIPDCT925058, financed by EC). The project was coordinated by Dr. Peter Loveland, Soil Survey and Land Research Centre. Crarifield University, Silsoe Campus, Bedford, Great Britain. The project was conducted in 1992-1995 by scientific institutes from 6 countries, including the Institute of Agrophysics, Polish Academy of Sciences in Lublin. This book consists of main information about the whole project and detailed information about, tasks performed by the Institute of Agrophysics, PAS in cooperation with the Institute of Soil Science and Plant Cultivation (IUNG) Puławy as well as with other European institutes. There are presented results of investigations conducted in cooperation with ADAS Land Centre, Gleadthorpe Research Centre, Meden Vale, Mansfield, Great Britain, (Chapt. 2: Modelling of water movement in the soil profile with the preferential flow influence.), Maria Curie-Sklodowska University, Lublin, Poland (Chapter 3: The method of rainfall intensity estimation for runoff prediction), INRA Montpellier, Prance and IUNG Puławy, Poland (Chapter 4: Verification of yield prediction model using soil and climatic data). The basic task of EURO-ACCESSS project was the model and program development for prediction of climate change influence onto potential yield of important crops. The climatic and physiological properties are assumed to be known. In hydrological submodel developed in ADAS, Mansfield, there was Richards one dimensional flow model assumed. In order to include heterogeneity of the soil the submodel of bypass flow was created by IA PAS and included into existing one dimensional flow procedure. The horizontal infiltration submodel is based on Green- Ampt simplified flow model. It plays role of source and/or sink term within the Richards procedure and accounts for the bypass flow of water from the surface to the deeper layers of the soil profile. The model has been verified in the laboratory conditions, on the basis of numerical experiments and in the field condition. Laboratory flow experiment with induced cracks shows the possibility of explanation of bypass flow with developed procedure. Numerical experiment shows ade- quateness of proposed crack and inaeropore description to the field data. The model allows easily estimate macropore parameters from the simple measurements at the soil surface or from the profile cross-section. The calibration of the model on the basis of measured data consisting soil moistures at different depths and precipitation data, soil hydraulic properties and évapotranspiration data, shows better agreement with the bypass flow model included. The main problem was to estimate momentary rain intensity from the daily precipitation data available. This was done using the statistical model of the rain intensity distribution. The momentary rain intensity plays major role in the runoff estimation. On the basis of long term (1982-1993) historical precipitation, climatic and yield data collected in IUNG Puławy, the whole EURO-ACCESS II has been verified. The plant submodel based on EPIC model was modified and suited to European conditions by INRA, Montpellier. The whole verification was conducted on the basis of daily climatic data. The error analysis shows that, during 1985-1990 period when model was calibrated estimated yield error was 22,5%-, for the period 1984 and 1991 1993 where model was verified the yield error was 8.0%. For the whole period of simulation the error was 15.3%.
    Źródło:
    Acta Agrophysica; 1998, 09; 1-72
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Predicting water movement in a mediterranean soil-crop system with two simulation models
    Modelowanie ruchu wody w systemie gleba-roślina w warunkach klimatu śródziemnomorskiego
    Autorzy:
    Fernandez, J.
    Slawinski, C.
    Moreno, F.
    Walczak, R.
    Vanclooster, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1402140.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Źródło:
    Acta Agrophysica; 2001, 57; 27-38
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Database of Polish arable mineral soils: a review
    Autorzy:
    Bieganowski, A.
    Witkowska-Walczak, B.
    Glinski, J.
    Sokolowska, Z.
    Slawinski, C.
    Brzezinska, M.
    Wlodarczyk, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/26522.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Opis:
    The database of Polish arable mineral soils is presented. The database includes a lot of information about the basic properties of soils and their dynamic characteristics. It was elaborated for about 1 000 representative profiles of soils in Poland The database concerns: particle size distribution, organic carbon content, acidity-pH, specific surface area, hydrophobicity – solidliquid contact angle, static and dynamic hydrophysical properties, oxidation-reduction properties and selected biological (microbiological) properties of soils. Knowledge about soil characteristics is indispensable for description, interpretation and prediction of the course of physical, chemical and biological processes, and modelling these processes requires representative data. The utility of simulation and prediction models describing phenomena which take place in the soil-plant-atmosphere system greatly depends on the precision of data concerning characteristics of soil. On the basis of this database, maps of chosen soil properties are constructed. The aim of maps is to provide specialists in agriculture, ecology, and environment protection with an opportunity to gain knowledge of soil properties and their spatial and seasonal variability.
    Źródło:
    International Agrophysics; 2013, 27, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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