Parameters of infiltration models affected by the infiltration measurement technique and land-use
ABSTRACT The measurement method (MM) and the land-use (LU) are two soil structure-related attributes that are available in infiltration experiments. This study aims to hypothesize that measurement technique and land-use might be good predictors of the performance of infiltration parameter values and...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Ciência do Solo
2022-06-01
|
| Series: | Revista Brasileira de Ciência do Solo |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832022000100411&lng=en&tlng=en |
| _version_ | 1811248318554046464 |
|---|---|
| author | Gülay Karahan Yakov Pachepsky |
| author_facet | Gülay Karahan Yakov Pachepsky |
| author_sort | Gülay Karahan |
| collection | DOAJ |
| description | ABSTRACT The measurement method (MM) and the land-use (LU) are two soil structure-related attributes that are available in infiltration experiments. This study aims to hypothesize that measurement technique and land-use might be good predictors of the performance of infiltration parameter values and models. The Soil Water Infiltration Global (SWIG), which includes about 5000 experiments worldwide and assembled in the Institute of Agrosphere in Jülich, Germany, was used. Except for the known properties such as texture, measurement method, and land-use, changes were observed in organic carbon content, saturated hydraulic conductivity, bulk density, pH, initial water content, and the electrical conductivity of saturated paste. Horton and Mezencev models outperformed from Green and Amp and Two-term Philip models, hence it has been seen that Horton and Mezencev models could be preferred according to the measurement method. To determine the most influential predictors of these two models’ parameters, the machine learning method “regression trees” was applied. In 80 % of cases for both models, the textural class, the MM (40 % of cases), and the LU were found as the most influential predictors. The accuracy of parameter estimates increased when a subset of measurements was used with the same method to estimate infiltration parameters. Textural class, LU, bulk density, and K sat were determined as the most influential predictors for the parameters of the Horton. However, textural class, LU, and organic carbon content became most important in the case of the Mezencev model. Overall, estimates of the infiltration equation parameters can be more accurate if they have been developed for the same MM as in the task at hand. The MM and the LU provide useful surrogate information about the effect of soil structure on infiltration. |
| first_indexed | 2024-04-12T15:25:03Z |
| format | Article |
| id | doaj.art-82f76224176546728df0a0041f693083 |
| institution | Directory Open Access Journal |
| issn | 1806-9657 |
| language | English |
| last_indexed | 2024-04-12T15:25:03Z |
| publishDate | 2022-06-01 |
| publisher | Sociedade Brasileira de Ciência do Solo |
| record_format | Article |
| series | Revista Brasileira de Ciência do Solo |
| spelling | doaj.art-82f76224176546728df0a0041f6930832022-12-22T03:27:17ZengSociedade Brasileira de Ciência do SoloRevista Brasileira de Ciência do Solo1806-96572022-06-014610.36783/18069657rbcs20210147Parameters of infiltration models affected by the infiltration measurement technique and land-useGülay Karahanhttps://orcid.org/0000-0003-1285-6546Yakov Pachepskyhttps://orcid.org/0000-0003-0232-6090ABSTRACT The measurement method (MM) and the land-use (LU) are two soil structure-related attributes that are available in infiltration experiments. This study aims to hypothesize that measurement technique and land-use might be good predictors of the performance of infiltration parameter values and models. The Soil Water Infiltration Global (SWIG), which includes about 5000 experiments worldwide and assembled in the Institute of Agrosphere in Jülich, Germany, was used. Except for the known properties such as texture, measurement method, and land-use, changes were observed in organic carbon content, saturated hydraulic conductivity, bulk density, pH, initial water content, and the electrical conductivity of saturated paste. Horton and Mezencev models outperformed from Green and Amp and Two-term Philip models, hence it has been seen that Horton and Mezencev models could be preferred according to the measurement method. To determine the most influential predictors of these two models’ parameters, the machine learning method “regression trees” was applied. In 80 % of cases for both models, the textural class, the MM (40 % of cases), and the LU were found as the most influential predictors. The accuracy of parameter estimates increased when a subset of measurements was used with the same method to estimate infiltration parameters. Textural class, LU, bulk density, and K sat were determined as the most influential predictors for the parameters of the Horton. However, textural class, LU, and organic carbon content became most important in the case of the Mezencev model. Overall, estimates of the infiltration equation parameters can be more accurate if they have been developed for the same MM as in the task at hand. The MM and the LU provide useful surrogate information about the effect of soil structure on infiltration.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832022000100411&lng=en&tlng=enwater infiltrationsoil structuremodelingregression treesmeasurement method |
| spellingShingle | Gülay Karahan Yakov Pachepsky Parameters of infiltration models affected by the infiltration measurement technique and land-use Revista Brasileira de Ciência do Solo water infiltration soil structure modeling regression trees measurement method |
| title | Parameters of infiltration models affected by the infiltration measurement technique and land-use |
| title_full | Parameters of infiltration models affected by the infiltration measurement technique and land-use |
| title_fullStr | Parameters of infiltration models affected by the infiltration measurement technique and land-use |
| title_full_unstemmed | Parameters of infiltration models affected by the infiltration measurement technique and land-use |
| title_short | Parameters of infiltration models affected by the infiltration measurement technique and land-use |
| title_sort | parameters of infiltration models affected by the infiltration measurement technique and land use |
| topic | water infiltration soil structure modeling regression trees measurement method |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832022000100411&lng=en&tlng=en |
| work_keys_str_mv | AT gulaykarahan parametersofinfiltrationmodelsaffectedbytheinfiltrationmeasurementtechniqueandlanduse AT yakovpachepsky parametersofinfiltrationmodelsaffectedbytheinfiltrationmeasurementtechniqueandlanduse |