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Wyświetlanie 1-15 z 29
Tytuł:
Interpolation of soil infiltration in furrow irrigation: Comparison of kriging, inverse distance weighting, multilayer perceptron and principal component analysis methods
Autorzy:
Alipour, N.
Nasseri, A.
Mohammbdi, T.A.
Pazira, E.
Powiązania:
https://bibliotekanauki.pl/articles/971544.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
artificial neural network
geostatistical analysis
irrigation
soil infiltration
Opis:
Study on soil infiltration rate as part of water cycle is essential for managing water resources and designing irrigation systems. The present study was conducted with the aim to compare Kriging, inverse distance weighting (IDW), multilayer perceptron (MLP) and principal component analysis (PCA) methods in the interpolation of soil infiltration in furrow irrigation, and determine the best interpolation method. To conduct infiltration tests, furrows were made on the farm in four triad groups. Infiltration through the blocked furrows method was measured 10, 20, 30, 40, 50, 60, 90, 120, 150, 160, 180 and 210 min after irrigation at a 10-meter distance in each furrow. Data were analyzed by GS+ and Neuro Solutions (NS) software packages. In this study, the maximum error (ME), mean bias error (MBE), mean absolute error (MAE), root mean square error (RMSE), relative error (RE) and correlation coefficient (r) were used to compare the interpolation methods. The results of analysis of variance (ANOVA) indicated that differences in methods based on RMSE, MBE, MAE and ME indices were not significant; however, this difference was significant based on r and RE indices. According to the ANOVA results, it can be said that the PCA method with a r of 0.69 and RE of 31%, was predicted with a higher accuracy as compared to other methods.
Źródło:
Polish Journal of Soil Science; 2019, 52, 1; 59-74
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative study of soil infiltration capacity at selected sites
Autorzy:
Vicanova, M.
Toman, F.
Masicek, T.
Oppeltova, P.
Powiązania:
https://bibliotekanauki.pl/articles/62345.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
soil infiltration
soil
infiltration rate
hydrophysical property
soil property
soil compaction
Czech Republic
territory characteristics
soil moisture
bulk density
porosity
soil quality
Opis:
The study deals with definition and cross-comparison of soil infiltration capacity at two selected sites located in cadastral territories of Nosislav and Žabčice, Czech Republic. In order to assess the soil infiltration capacity in the areas of interest Niva and Kovál over the course of the 2010 growing season, four trips were made with three measurements taking place during each trip. A method of doublering infiltration measurement was applied, based on the use of two concentric cylinders in field conditions and the subsequent data processing via geographical-empirical method according to Kostiakov. The soil infiltration capacity was assessed with regard to physical properties determined by an analysis of intact soil samples using Kopecky cylinders. The results indicate a reduced infiltration capacity due to soil compaction and also significant differences between the two sites, primarily caused by differences in soil type and, hence, different physical characteristics.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2011, 12
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physical parameters and micromorphological description of sandy Slovak soil
Autorzy:
Curlik, J.
Houskova, B.
Powiązania:
https://bibliotekanauki.pl/articles/24325.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
crop model
hydraulic conductivity
soil infiltration
organic matter
soil structure
micromorphological description
physical property
sandy soil
soil
hydrophysical property
air temperature
Slovak Republic
water regime
soil texture
Źródło:
International Agrophysics; 1997, 11, 1-2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza i wybór do budowy odpowiedniego wariantu przydomowych oczyszczalni ścieków
The analysis and selection of an appropriate option for the construction of household sewage treatment plants
Autorzy:
Kalenik, M.
Peczak, P.
Powiązania:
https://bibliotekanauki.pl/articles/40870.pdf
Data publikacji:
2015
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
wies
scieki bytowe
osadniki gnilne
oczyszczalnie sciekow
oczyszczalnie przydomowe
drenaz rozsaczajacy
zloza biologiczne
kryteria wyboru
village
household sewage
sewage treatment plant
household sewage treatment plant
soil infiltration system
trickling filter
choice criterion
Opis:
Celem niniejszej pracy jest przedstawienie sposobu postępowania przy wyborze najodpowiedniejszego wariantu przydomowych oczyszczali ścieków, które można byłoby budować w miejscowościach o rozproszonej zabudowie. Zakres pracy obejmuje sporządzenie dwóch wariantów koncepcji przydomowych oczyszczalni ścieków oraz przeprowadzenie analizy i wybór najodpowiedniejszego z wariantów do zastosowania we wsi Kawęczyn. W związku z tym w pracy pokazano, dla jakich warunków gruntowo-wodnych można stosować przydomowe oczyszczalnie ścieków zgodnie z nowym Rozporządzeniem Ministra Środowiska [2014]. Przedstawiono analizę zebranych danych do projektowania i wybrano możliwe do zastosowania we wsi Kawęczyn warianty przydomowych oczyszczalni. Podano metodykę projektowania dla wybranych wariantów tych oczyszczalni. Zaprezentowano uzyskane wyniki obliczeń hydraulicznych i dobrano przydomowe oczyszczalnie ścieków dla analizowanych wariantów. Obliczono ich koszty budowy. Przeprowadzono analizę wszystkich uzyskanych danych i dla miejscowości Kawęczyn wybrano wariant oczyszczalni ścieków ze złożem biologicznym.
The purpose of this paper is to present how to proceed when choosing the most appropriate variant of household sewage treatment plants that could be built in the villages of dispersed buildings. The scope of work includes the preparation of two variants of the concept of household sewage treatment plants, analyze and choose the most appropriate variant for use in the village Kawęczyn. The paper presents, for what conditions soil-water can be used of household sewage treatment plants under the new Regulation of the Minister of the Environment [2014]. The presented was an analysis of the data collected to design and selected usable in the village Kawęczyn variants of household sewage treatment plants. Design methodology was given for selected variants household sewage treatment plants. The presented was results of hydraulic calculations and chosen were household sewage treatment plants for the analyzed variants. The calculated was cost for designed variants of household sewage treatment plants. The performed an analysis of all the data and selected for the village Kawęczyn variant of household sewage treatment plants with bio filter.
Źródło:
Acta Scientiarum Polonorum. Architectura; 2015, 14, 2
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling infiltration rate in conditioned soil: comparisons and modifications
Autorzy:
Nnabude, P.C.
Agunwamba, J.C.
Mbagwu, J.S.C.
Powiązania:
https://bibliotekanauki.pl/articles/25116.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
model
agricultural land
waste application
soil
infiltration dynamics
conditioned soil
modelling infiltration
modification
Źródło:
International Agrophysics; 2000, 14, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Infiltration of Leachate From Landfills on the Changes of Chemical Parameters of the Soil
Autorzy:
Gałko, G.
Powiązania:
https://bibliotekanauki.pl/articles/952429.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
landfill
leachate
infiltration
loamy soil
brown soil
Opis:
The article presented the results of geochemical research of clean soil and soil contaminated with the leachate from the landfill. Two types of soil were studied – brown with a stony foundation and loamy. The aim of the research was to compare the impact of leachate infiltration on the changes of chemical parameters of soils and to determine their buffer properties and susceptibility to contamination on this basis. The obtained results showed that the total acidity, mineral alkalinity and chloride content in the studied soils reduced after the contamination with the landfill leachate. While the chloride content, general hardness and general alkalinity increased. It has been found that the effect of infiltration of the landfill leachate was the significant reduction of mineral substances due to their washout of the soil profile. It has also been shown that the studied landfill leachate contained substantial quantities of substances favourable to the plant growth.
Źródło:
Journal of Ecological Engineering; 2015, 16, 4; 198-205
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating parameters of empirical infiltration models from the global dataset using machine learning
Autorzy:
Kim, S.
Karahan, G.
Sharma, M.
Pachepsky, Y.
Powiązania:
https://bibliotekanauki.pl/articles/2083049.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
infiltration modelling
random forest
Soil Water
Infiltration Global database
Opis:
It is beneficial to develop pedotransfer relationships to estimate infiltration equation coefficients in site-specific conditions from readily available data. No systematic studies have been published concerning the relationships between the accuracy of the infiltration equation and the accuracy of the predicted coefficients in this equation. The objective of this work was to test the hypothesis that, for the same infiltration data, the accuracy of pedotransfer predictions for coefficients in an infiltration equation is greater for the infiltration equation that performs better. The hypothesis was tested using the commonly employed Horton and Mezencev (modified Kostiakov) infiltration equations with data from the Soil Water Infiltration Global database. The random forest machine learning algorithm was used to develop the pedotransfer model. The Horton and the Mezencev models performed better with 928 and 758 datasets, respectively. The accuracy of the estimates of the infiltration equation coefficients did not differ substantially between the estimates obtained from all data and from the data where the infiltration equation had lower root-mean-squared error values. The root-mean-squared error values of the pedotransfer estimates decreased by 2 to 25% when only datasets with the same infiltration measurement method were considered. The development of predictive pedotransfer equations with the data obtained from the same infiltration measurement method is recommended.
Źródło:
International Agrophysics; 2021, 35, 1; 73-81
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Runoff from soils on marls under semi-arid Mediterranean conditions
Autorzy:
Blum, W.E.H.
Gomer, D.
Powiązania:
https://bibliotekanauki.pl/articles/25075.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
water infiltration
run-off
sedimentation
soil degradation
soil
marl
Mediterranean climate
infiltration
rainfall
modelling
marly soil
rain simulator
Źródło:
International Agrophysics; 1996, 10, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the Threat of Erosion to Nature-Based Interventions for Stormwater Management and Flood Control in the Greater Accra Metropolitan Area, Ghana
Autorzy:
Asiedu, J. K.
Powiązania:
https://bibliotekanauki.pl/articles/124600.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
RUSLE model
soil loss
clogging
infiltration
stormwater management
Opis:
Perennial flooding has become a major feature in urban areas in developing economies generating research interest towards finding alternative approaches to stormwater management which could complement the existing systems and help address the challenge of flooding. One of such alternative approaches is nature-based stormwater management and flood control, the implementation of which could be affected by soil erosion. This paper, as part of a wider research, was developed to determine the extent of the threat of soil erosion to stormwater management in an urban area on the example of Greater Accra Metropolitan Area, Accra Ghana as the focus of the research. Landsat 8 images (2014) were used in the research to prepare the Landcover maps. Daily rainfall data from 6 raingauge stations from 1972 to 2014 were utilized to prepare the rainfall erosivity factor maps, whereas DEM was used to prepare the slope and slope length (SL) factor maps. The land cover map with an overall accuracy of 73.6 and Kappa 0.7122 was combined with literature sources to prepare the vegetative cover factor map, and conservation practice factor map. A soil series map, prepared and updated with literature sources and data from the Harmonized World Soil Database on physical parameters, was used to calculate the soil erodibility factor (K factor) for each soil series. These were integrated into RUSLE model as 30 m raster maps to generate a soil loss map at tons/ha/yr. The results produced rainfall erosivity index values based on the modified Fournier index ranging between 0.058 and 23.197 which is classified as low. Low soil erodibility factor (K) ranging between 2.9×10–5 and 8.5×10–2 t ha/MJ mm indicated low susceptibility to erosion, SL factor value showing areas of low to almost flat relief with a few isolated areas of moderate slope length were generated. A soil loss of 69,5918 tons/ha/yr classified the soils as having high potential soil loss. The results showed a very low soil loss threat of 0–5.1853 tons/Ha/yr for more than 90% of the study area. Targeted intervention for source areas with high potential soil loss will contain any threat of erosion and sediment yield to the implementation of an infiltration-based stormwater management and flood control system.
Źródło:
Journal of Ecological Engineering; 2018, 19, 1; 1-13
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Infiltration into layered soil covered with a depositional seal: a Green-Ampt approach
Autorzy:
Pachepsky, Y.A.
Timlin, D.
Powiązania:
https://bibliotekanauki.pl/articles/25130.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
hydraulic conductivity
soil profile
Green-Ampt method
soil
infiltration
water transport
Źródło:
International Agrophysics; 1996, 10, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of soil infiltration rate equation based on soil properties using multiple linear regression
Autorzy:
Harisuseno, Donny
Cahya, Evi N.
Powiązania:
https://bibliotekanauki.pl/articles/1844413.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
infiltration rate
model performance
multiple linear regression
soil property
Opis:
Infiltration process plays important role in water balance concept particularly in runoff analysis, groundwater recharged, and water conservation. Hence, increasing knowledge concerning infiltration process becomes essential for water manager to gain an effective solution to water resources problems. This study employed multiple linear regression for estimating infiltration rate where the soil properties used as the predictor variable and measured infiltration rate as the response variable. Field measurement was conducted at sixteen points to obtain infiltration rate using double ring infiltrometer and soil properties namely soil porosity, silt, clay, sand content, degree of saturation, and water content. The result showed that measured infiltration rate had an average initial infiltration rate (f0) of 6.92 mm∙min–1 and final infiltration rate (fc) of 1.49 mm∙min–1. Soil porosity and sand content showed a positive correlation with infiltration rate by 0.842, 0.639, respectively, while silt, clay, water content, and degree of saturation exhibited a negative correlation by –0.631, –0.743, –0.66 and –0.49, respectively. Three types of regression equations were established based on type of soil properties used as predictor variables. The model performance analysis was conducted for each equation and the result shows that the equation with five predictor variables fMLR_3 = – 62.014 + 1.142 soil porosity – 0.205 clay, – 0.063 sand – 0.301, silt + 0.07 soil water content with R2 (0.87) and Nash–Sutcliffe (0.998) gave the best result for estimating infiltration rate. The study found that soil porosity contributes mostly to the regression equation that indicates great influence in controlling soil infiltration behavior.
Źródło:
Journal of Water and Land Development; 2020, 47; 77-88
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative non-linear regression - case of infiltration rate increase from upstream in valley
Autorzy:
Keita, A.
Yacouba, H.
Hayde, L.G.
Schultz, B.
Powiązania:
https://bibliotekanauki.pl/articles/25502.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
drainage
nonlinear regression
infiltration rate
permeability
savannah
flooded valley
soil
Opis:
In Tropical Savannah flooded valley soils, very low infiltration rates often result in acidic conditions favourable to high concentrations of metallic ions, toxic for rice. Determination of the under-phreatic infiltration rate is important in drainage design to reclaim degraded soils. Several studies have addressed the mapping of the infiltration rate. Yet, its relationship with the toposequence of the valley is not clarified. This paper has investi- gated such a possibility, examining the case of the irrigated rice valley of Tiefora, Burkina Faso. Nine boreholes – from 1 to 5 m deep – were implemented from upstream to downstream. The Lefranc permeability test of the under-phreatic level in water- logged soils – used when the impervious layer is close to soil sur- face or absent – was conducted. First, a comparative regression was applied to the data, including all the parameters of the regression curves. In the case of dissimilarity of the infiltration processes, the comparison focused on the final permeability. The results show a permeability increase from upstream (0.10±0.10 cm h -1 ) to down- stream (greater than 20±10 cm h -1 in some places). Taking into account such a permeability increase in the subsurface drainage system design would result in implementation of more efficient and cost effective systems.
Źródło:
International Agrophysics; 2014, 28, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radioactive tracer techniques used in solute transport studies in a field soil
Autorzy:
Lichner, L.
Powiązania:
https://bibliotekanauki.pl/articles/24059.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
field soil
hydrology
infiltration rate
longitudinal dispersion coefficient
solute velocity
soil
soil surface
soil matrix
tracer technique
solute transport
Źródło:
International Agrophysics; 2001, 15, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of water regimes on sorptivity and organic matter humic components of soil
Autorzy:
Raut, S.
Sahoo, N.
Chakraborty, H.
Powiązania:
https://bibliotekanauki.pl/articles/26353.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
water regime
sorptivity
organic matter
humic acid
soil
fulvic acid
infiltration
soil property
physicochemical property
Opis:
The aim of the study was to find the effect of water regimes on soil sorptivity and humic components of organic matter. Physicochemical parameters were also determined. Steady state cumulative infiltration was the highest (60-100 mm) in non-irrigated upland soil and the lowest (8-10 mm) in waterlogged soil. The highest sorptivity of 4.0-4.5mmmin-1/2 was found in nonirrigated upland soil and the lowest in seasonally waterlogged soil (1.0-1.5 mm min-1/2). Organic carbon content of all soils was low (<1%), EC values were also low (< 4 dS m-1). Saturated moisture was high in waterlogged soil. The non-irrigated upland soils had a higher fraction of fulvic acid (0.15-0.2%), due to which they were more capable of infiltration, whereas waterlogged soils had a greater fraction of insoluble humic acid (0.29-0.35%) and exhibited less cumulative infiltration. Sorptivity decreased as the clay content, pH, EC, porosity and humic acid content of the soil increased.
Źródło:
International Agrophysics; 2012, 26, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of soil physical condition with the use of CERES model, permeameter and infiltrometer methods
Autorzy:
Kuraz, V.
Dolezal, F.
Powiązania:
https://bibliotekanauki.pl/articles/24647.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil structure
CERES model
soil
infiltrometer
hydraulic property
infiltration measurement
crop production
permeameter
physical condition
Źródło:
International Agrophysics; 1997, 11, 1-2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 29

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