Simulation of evapotranspiration and drainage from potash tailings covers using hydrus-1d

verfasst von: Carolina Bilibio, Oliver Hensel, Daniel Uteau, Stephan Peth
Abstract: Evapotranspiration is the sum of evaporation of water from soils and transpiration from plants. It is a crucial part of the water cycle and can be measured using lysimeters. However, lysimeters require high maintenance and operation costs; as such, evapotranspiration models are used for making predictions. Thus, the aim of the present study was to calibrate the Hydrus-1D to predict the water balance components of a thin evapotranspiration covering layer for potash tailings piles. Further simulations were performed using different fine fraction proportions, soil textures and crop parameters. A high association between the calibrated and observed drainage of substrates was found, with a variation of 2.9% (approximately 13.6 mm). Drainage estimates were lower with increasing root depth, crop height and proportion of fine particles (< 2 mm diameter) in the substrates. Fine fractions in the substrates increased the water storage and the evapotranspiration capacity of the substrates and therefore contribute to improving the efficiency of evapotranspiration covers and can facilitate reducing brine drainage from potash tailings piles.
Organisationseinheit(en): Institut für Bodenkunde
Externe Organisation(en): Universität Kassel
Typ: Artikel
Journal: Agricultural Engineering International: CIGR Journal
Band: 23
Seiten: 85-98
Anzahl der Seiten: 14
Publikationsdatum: 06.2021
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Fahrzeugbau, Agronomie und Nutzpflanzenwissenschaften, Energie (sonstige), Wirtschaftsingenieurwesen und Fertigungstechnik
Elektronische Version(en): https://cigrjournal.org/index.php/Ejounral/article/view/6649 (Zugang: Geschlossen)

BibTeX

@article{6ae72399ab434a39acc960573d081ff0,
title = "Simulation of evapotranspiration and drainage from potash tailings covers using hydrus-1d",
abstract = "Evapotranspiration is the sum of evaporation of water from soils and transpiration from plants. It is a crucial part of the water cycle and can be measured using lysimeters. However, lysimeters require high maintenance and operation costs; as such, evapotranspiration models are used for making predictions. Thus, the aim of the present study was to calibrate the Hydrus-1D to predict the water balance components of a thin evapotranspiration covering layer for potash tailings piles. Further simulations were performed using different fine fraction proportions, soil textures and crop parameters. A high association between the calibrated and observed drainage of substrates was found, with a variation of 2.9% (approximately 13.6 mm). Drainage estimates were lower with increasing root depth, crop height and proportion of fine particles (< 2 mm diameter) in the substrates. Fine fractions in the substrates increased the water storage and the evapotranspiration capacity of the substrates and therefore contribute to improving the efficiency of evapotranspiration covers and can facilitate reducing brine drainage from potash tailings piles.",
keywords = "Coal combustion residues, Greening, Mining, Municipal wastes, Perennial grasses, Water fluxes",
author = "Carolina Bilibio and Oliver Hensel and Daniel Uteau and Stephan Peth",
note = "Funding Information: This research was supported by K+S KALI GmbH, project number 6525103. We are grateful for our colleagues from the Department of Agricultural and Biosystems Engineering, University of Kassel, Witzenhausen, for help collecting samples in the field. We also thank the Department of Soil Science for scientific and technical assistance in the soil laboratories.",
year = "2021",
month = jun,
language = "English",
volume = "23",
pages = "85--98",
journal = "Agricultural Engineering International: CIGR Journal",
issn = "1682-1130",
publisher = "International Commission of Agricultural and Biosystems Engineering",
number = "2",
}