Results 21 to 30 of about 646 (180)

Functional Evaluation of Pedotransfer Functions for the Estimation of Soil Hydraulic Properties [PDF]

Soil Science Society of America Journal, 1992
Abstract Pedotransfer functions (PTFs) are often used for estimating hydraulic properties such as the moisture retention characteristic and the pressure head‐hydraulic conductivity relationship. Both properties are essential for the description of water and solute movement in unsaturated soils.
Diels, J., Vereecken, H., VOrshoven, J. V., Feyen, J., Bouma, J.   +4 more
openaire   +2 more sources

Estimating Penetration Resistance in Agricultural Soils of Ardabil Plain Using Artificial Neural Network and Regression Methods

مجله آب و خاک, 2017
Introduction: Penetration resistance is one of the criteria for evaluating soil compaction. It correlates with several soil properties such as vehicle trafficability, resistance to root penetration, seedling emergence, and soil compaction by farm ...
Gholam Reza Sheykhzadeh, shokrollah asghari, Tarahom Mesri Gundoshmian   +2 more
doaj   +1 more source

Estimation of water retention and availability in soils of Rio Grande do Sul Estimativa da retenção e disponibilidade de água em solos do Rio Grande do Sul

Revista Brasileira de Ciência do Solo, 2009
Dispersed information on water retention and availability in soils may be compiled in databases to generate pedotransfer functions. The objectives of this study were: to generate pedotransfer functions to estimate soil water retention based on easily ...
José Miguel Reichert, Jackson Adriano Albuquerque, Douglas Rodrigo Kaiser, Dalvan José Reinert, Felipe Lavarda Urach, Reimar Carlesso   +5 more
doaj   +1 more source

Verification of Appropriateness of Selected Pedotransfer Functions for the Basic Use in Agriculture of the Czech Republic

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2015
Soil is a huge reservoir of water used by plants in periods without precipitation and significantly affects the hydrological balance of any territory. To evaluate the hydrological balance of any piece of the land given, it is therefore necessary to carry
Vítězslav Vlček, Vítězslav Hybler
doaj   +1 more source

PEDOTRANSFER FUNCTION TO ESTIMATE THE SOIL STRUCTURAL “S” INDEX AND SPATIAL VARIABILITY IN AN OXISOL WITHIN A LIVESTOCK FARMING SYSTEM [PDF]

Engenharia Agrícola, 2020
Various attributes are often required to build soil quality indicators. However, determining these attributes is time-consuming and requires several specific devices.
Renan F. R. Tavanti, Rafael Montanari, Alan R. Panosso, Onã da S. Freddi, Antonio Paz-González   +4 more
doaj   +2 more sources

Hydro-pedotransfer functions: A roadmap for future development

, 2023
Abstract. Hydro-pedotransfer functions (PTFs) relate easy-to-measure and readily available soil information to soil hydraulic properties for applications in a wide range of process-based and empirical models, thereby enabling the assessment of soil hydraulic effects on hydrological, biogeochemical, and ecological processes.
Tobias Karl David Weber, Lutz Weihermüller, Attila Nemes, Michel Bechtold, Aurore Degré, Efstathios Diamantopoulos, Simone Fatichi, Vilim Filipović, Surya Gupta, Tobias L. Hohenbrink, Daniel R. Hirmas, Conrad Jackisch, Quirijn de Jong van Lier, John Koestel, Peter Lehmann, Toby R. Marthews, Budiman Minasny, Holger Pagel, Martine van der Ploeg, Simon Fiil Svane, Brigitta Szabó, Harry Vereecken, Anne Verhoef, Michael Young, Yijian Zeng, Yonggen Zhang, Sara Bonetti   +26 more
openaire   +3 more sources

Pedotransfer Functions in Earth System Science: Challenges and Perspectives [PDF]

Reviews of Geophysics, 2017
AbstractSoil, through its various functions, plays a vital role in the Earth's ecosystems and provides multiple ecosystem services to humanity. Pedotransfer functions (PTFs) are simple to complex knowledge rules that relate available soil information to soil properties and variables that are needed to parameterize soil processes.
Kris Van Looy, Johan Bouma, Michael Herbst, John Koestel, Budiman Minasny, Umakant Mishra, Carsten Montzka, Attila Nemes, Yakov A. Pachepsky, José Padarian, Marcel G. Schaap, Brigitta Tóth, Anne Verhoef, Jan Vanderborght, Martine J. van der Ploeg, Lutz Weihermüller, Steffen Zacharias, Yonggen Zhang, Harry Vereecken   +18 more
openaire   +5 more sources

Modeling and correction of soil penetration resistance for variations in soil moisture and soil bulk density [PDF]

Engenharia Agrícola, 2016
This study aimed to describe the behavior of models for adjusting data of soil penetration resistance for variations in soil moisture and soil bulk density.
Wininton M. da Silva, Aloísio Bianchini, Cesar A. da Cunha   +2 more
doaj   +1 more source

A framework to evaluate and identify development requirements for land‐surface models at km‐scale resolution: Application to a semi‐arid and mountainous region

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This article provides a first evaluation of land‐surface models at the km‐scale resolutions at which they are used in weather and Earth‐system models. At these resolutions, the lateral transfers of water that organize landscapes play an important role in predicting evaporation correctly. Riparian processes and human water management for irrigation need
Jan Polcher, Julie Collignan, Juan Pablo Sierra Perez, Gabriele Arduini, Sophie Bastin, Martin Best, Aaron Boone, Manel Bravo, Francesca Covella, Jasper M. C. Denissen, Cenlin He, Simon Munier, Marc Prange, Elena Shevliakova   +13 more
wiley   +1 more source

Pedotransfer functions of soil water properties to estimate the S-index

Revista Brasileira de Engenharia Agrícola e Ambiental
One big challenge for soil science is to translate existing data into data that is needed. Pedotransfer functions have been proposed for this purpose and they can be point or parametric when estimating the water retention characteristics. Many indicators
João H. Caviglione
doaj   +1 more source