Results 21 to 30 of about 14,547,480 (205)

Efficiency of drip irrigation in amaranth production using the HYDRUS-1D model

Frontiers in Sustainable Food Systems
The negative impact of climate change is potentially damaging agroecosystem services that have constrained agricultural production and caused water scarcity in Central Asian countries, particularly in Uzbekistan.
Akmal Karimov, Bakhodir Khalikov, Sabirjan Isaev, Obidjon Sindarov, Kholmurod Khayitov, Mirzoolim Avliyakulov, Anvarjon Isashov, Perizat Bulanbayeva, Altingul Djumanazarova, Yo'ldoshbek Muhammadov, Nurmamat Rajabov, Gulnoza Murtazayeva, Shaniyaz Kurbanov, Kholik Allanov, Botir Khaitov   +14 more
doaj   +2 more sources

Sensitivity and uncertainty analysis of the HYDRUS-1D model for root water uptake in saline soils

Crop & Pasture Science, 2018
A variance-based global sensitivity analysis (extended Fourier amplitude sensitivity test, EFAST) was applied to the Feddes module of the HYDRUS-1D model, and the sensitivity indices including both main and total effects of actual root water uptake (RWUa) to seven Feddes parameters were quantified at different growth stages of sunflower (Helianthus ...
Wenzhi Zeng, Guoqing Lei, Yuanyuan Zha, Yuanhao Fang, Jingwei Wu, Jiesheng Huang   +5 more
openaire   +2 more sources

Previously Unrecognized Land-Use Control on Deep Soil CO₂ Sink. [PDF]

Glob Chang Biol
Transport‐limited, boundary‐conditioned bidirectional exchange of topsoil‐respired CO2 drives CO2 accumulation in less bioactive subsoils in concentrations that cannot be explained by in situ production alone and far exceed atmospheric boundary concentrations, revealing a production‐transport imbalance and a potential land‐use‐sensitive pathway for ...
Tetteh K, Abdollahpour M, Sauheitl L, Guggenberger G, Zamanian K.   +4 more
europepmc   +2 more sources

Modeling Soil Profile Salinity with HYDRUS-1D

Selcuk Journal of Agricultural and Food Sciences, 2022
Salt accumulation within the root zone significantly effects plant growth and development in arid and semi-arid regions. Today, use of low-quality irrigation water in agricultural production is increasing rapidly, because of continuous depletion and pollution of water resources. This means more salt transferred to the soil profile.
Sertan Avcı, Engin Yurtseven
openaire   +3 more sources

Whole orchard recycling in California's Central Valley: Benefits, management, and adoption. [PDF]

J Environ Qual
Abstract Whole orchard recycling (WOR) has become a common practice in California (CA) orchards and vineyards due to declining options for agricultural biomass disposal. WOR is the process by which entire orchards or vineyards are shredded into chips, spread onto the soil surface, and incorporated into the soil before replanting a new crop.
Culumber CM, Holtz B, Gao S, Poret-Peterson A, Thao T, Zuber C, Niederholzer F, Yaghmour M, Camarena-Onofre D, Rivers D, Browne G, Halleck BT.   +11 more
europepmc   +2 more sources

Modeling root water uptake of landscape groundcovers with HYDRUS-1D and particle swarm optimization

Agricultural Water Management
Accurate parameterization of root water uptake (RWU) models for landscape groundcovers is essential for estimating soil water balance components. In this study, HYDRUS-1D was coupled with the Particle Swarm Optimization (PSO) algorithm to calibrate ...
Zahra Amiri, Amir Verdi
doaj   +2 more sources

Modelling Hydrology of a Single Bioretention System with HYDRUS-1D

The Scientific World Journal, 2014
A study was carried out on the effectiveness of bioretention systems to abate stormwater using computer simulation. The hydrologic performance was simulated for two bioretention cells using HYDRUS-1D, and the simulation results were verified by field data of nearly four years. Using the validated model, the optimization of design parameters of rainfall
Yingying Meng, Huixiao Wang, Jiangang Chen, Shuhan Zhang   +3 more
openaire   +3 more sources

Simulating water flow in Hydrus 1D coupled with volumetric water content from electromagnetic induction-based model [PDF]

, 2022
Master of ScienceDepartment of Civil EngineeringWeston KoehnStacey E. Tucker-KuleszaUnderstanding groundwater flow dynamics is vital for a number of applications which includes water budget modeling, crop modeling and to understand long term soil water ...
Haroon, Saquib Mohammed
core  

Assessing the hydraulic reduction performance of HYDRUS-1D for application of alkaline irrigation in variably-saturated soils: Validation of pH driven hydraulic reduction scaling factors

, 2021
Land application of alkaline irrigation water is an increasing practice in most agricultural lands around the world due to the shortage of freshwater resources.
Biggs, Andrew A. J., Marchuk, Alla, Ghahramani, Afshin, Ali, Aram, Bennett, John McL, Aram Ali, John McL Bennett, Andrew A.J. Biggs, Alla Marchuk, Afshin Ghahramani   +9 more
core   +1 more source

MATLAB algorithm to implement soil water data assimilation with the Ensemble Kalman Filter using HYDRUS

MethodsX, 2018
Data assimilation is becoming a promising technique in hydrologic modelling to update not only model states but also to infer model parameters, specifically to infer soil hydraulic properties in Richard-equation-based soil water models.
Javier Valdes-Abellan, Yakov Pachepsky, Gonzalo Martinez   +2 more
doaj   +1 more source