soil water retention
Performance evaluation of different soil water retention functions for modeling of water flow under transient condition
... between water pressure and water content is not unique and presents hysteresis eff ...of soil water retention curves estimation via the SWRC ...the soil samples with higher ...
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Performance evaluation of different soil water retention functions for modeling of water flow under transient condition
... estimated soil water retention curve (SWRC) and free drainage with the measurement are shown in Tables 5 and 6, ...experimental water retention data were fitted to the different SWRC ...
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Influence of Soil Water Retention Properties on Hydrological Cycle and Water Budgeting Module Simulation
... of water budgeting module as shown in this paper is represented in ...annual soil-water budgets of skeletal and clayey soils, and hence the infl uence of soil water-retention ...
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SOIL WATER RETENTION AND S INDEX AFTER CROP ROTATION AND CHISELING
... highest soil water retention between saturation and -60 hPa in the ...lower water retention at low tensions (0 to 100 hPa), resulting from decreased porosity, mainly of the macropores, ...
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SOIL WATER RETENTION CURVE AND S INDEX AS SOIL PHYSICAL QUALITY INDICATORS FOR INTEGRATED PRODUCTION SYSTEMS
... the soil pores diameter (Figure ...the soil water retention in the Teak and Balsa wood treatments (Figure 1 and ...greater soil water retention, they also presented lower ...
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Nota Filter PaPer Method For the deterMiNatioN oF the Soil Water reteNtioN Curve
... a retention curve by the conventional methods of the richards Chamber and haines Funnel limit its use; therefore, alternative methods to facilitate this routine are ...the soil water retention ...
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Soil Water Retention Curve as Affected by Sample Height
... The soil water retention curve is one of the main instruments to assess the soil physical quality and to improve soil ...the retention curve has been Haines funnels and Richards ...
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Chemical migration during soil water retention curve evaluation
... the soil water hysteresis in water-stable microaggreg- ates as affected by ...reduced soil water retention in the microaggregates, and that the reduction tended to get smaller ...
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ASSESSMENT OF PEDOTRANSFER FUNCTIONS FOR ESTIMATING SOIL WATER RETENTION CURVES FOR THE AMAZON REGION
... the soil water retention curve (SWRC) is essential for understanding and modeling hydraulic processes in the ...of soil hydraulic ...includes soil texture (sand, silt, and clay), bulk ...
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Soil water retention curve and hydraulic soil in coffee crop conilon submitted to subsoiling
... tillage, water retention and soil hydraulic conductivity in Conilon coffee crop (Coffea canephora Pierre) submitted to subsoiling in the ...of water retention and hydraulic ...higher ...
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ESTIMATION OF WATER RETENTION AND AVAILABILITY IN SOILS OF RIO GRANDE DO SUL
... estimating soil water retention (Arruda et ...estimate soil water retention at different tensions based on easily measurable soil properties; to evaluate the efficiency of ...
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Retention and Solute Transport Properties in Disturbed and Undisturbed Soil Samples
... and retention and properties related to miscible ...on retention properties was tested using material from a medium-textured Ferralsol, and alterations caused by sample disturbance were ...investigated. ...
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PEDOTRANSFER FUNCTIONS TO ESTIMATE WATER RETENTION PARAMETERS OF SOILS IN NORTHEASTERN BRAZIL
... describe soil water retention ...786 retention curves, which were divided into two data sets: 85 % for the development of PTFs, and 15 % for testing and validation, considered independent ...
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Water retention and penetration resistance equations for the least limiting water range
... Results from fitting the soil water retention curve functions described by Eqs. 2, 3 and 4 are presented in Table 2. The nonlinear regression procedure achieved convergence for all equations and all ...
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PEDOTRANSFER FUNCTIONS RELATED TO SPATIAL VARIABILITY OF WATER RETENTION ATTRIBUTES FOR LOWLAND SOILS
... estimating soil water content can be related to the simplicity of its equation, which contains a limited number of explanatory variables and narrow ...estimating soil water retention ...
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WATER RETENTION IN A RHODIC KANDIUDOX UNDER ANIMAL MANURE APPLICATION AFTER 20 YEARS
... of water at saturation occurred in the NF in all layers, differing from the other evaluated areas (Figure 2), which may be related to a higher volume of biopores and macroporosity (Figure 1), as well as higher ...
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PEDOTRANSFER FUNCTIONS TO PREDICT WATER RETENTION FOR SOILS OF THE HUMID TROPICS: A REVIEW
... the water content variation than do the parameter-based ...of water content at matric potentials generally recognized as representing FC, ...the water depth that should be applied through irrigation ...
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Development of ternary diagrams for estimating water retention properties using geostatistical approaches
... use soil-texture-based information as the main predictor to estimate the hydraulic behavior of ...that soil texture characteristics are among the most easily measured soil properties, and also by the ...
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Water retention curve to analyze soil structure changes due to liming
... change soil water retention processes and pore size distribution (Auler et ...the soil particles in a way that the matrix porosity is ...
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Geostatistical modeling of spatial variability of water retention curves
... cently developed a program code that uses a full-automatic procedure to estimate soil water retention model parameters. The program automatically selects initial estimates based on observations so ...
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