Results 61 to 70 of about 14,547,480 (205)

Combining remote sensing and HYDRUS-RS model to simulate large-scale soil moisture dynamics

Guan'gai paishui xuebao
【Objective】 HYDRUS is a software widely used to simulate soil water movement, but it requires evapotranspiration which is difficult to obtain at large scales.
ZHANG Erdong, LIN Rencai, LIU Xinggang, WEI Zheng, ZHANG Baozhong, CHEN He   +5 more
doaj   +1 more source

A review of numerical methods for flow and transport modeling in the vadose zone

Vadose Zone Journal, Volume 25, Issue 5, September/October 2026.
Abstract Accurate modeling of subsurface flow and transport processes in the vadose zone, governed by the Richards equation and advection‐dispersion equation, respectively, poses major numerical challenges due to the strong nonlinearity of the governing partial differential equations, spatial heterogeneity and anisotropy of the media parameters, and ...
Shruti Jain, Saumava Dey, B. R. Chahar
wiley   +1 more source

Nitrate occurrence, alternative management practices, and modeled transport in the vadose zone over Nebraska's High Plains Aquifer

Vadose Zone Journal, Volume 25, Issue 5, September/October 2026.
Abstract Groundwater contamination by nitrate (NO3‐N) is a growing environmental and public health concern for the High Plains Aquifer underlying Nebraska, which is driven largely by intensive agricultural fertilizer applications. However, uncertainty remains in the variability of nitrate concentrations across deep vadose zones and the potential for ...
Muili Lawal, Aaron R. Mittelstet, Troy E. Gilmore, Aaron Lee M. Daigh, Daniel D. Snow, Olufemi P. Abimbola   +5 more
wiley   +1 more source

Controls of bulk density and grain size on Stage 1 evaporation from packed sand columns

Vadose Zone Journal, Volume 25, Issue 5, September/October 2026.
Abstract Soil evaporation from the vadose zone is strongly controlled by the pore size distribution and hydraulic connectivity, both of which are altered by mechanical compaction. However, the effect of bulk density changes and its vertical distribution on Stage 1 evaporation in sandy systems remains insufficiently quantified. In this study, we combine
Jorge Renaud, Alberto de la Fuente, Francisco Suárez   +2 more
wiley   +1 more source

Modeling Heavy Metal Transport in Soil Using HYDRUS-1D Simulation

Natural and Engineering Sciences
The problem of heavy metal pollution in soil, particularly in industrial regions, has a greater impact on human environmental health and other agricultural practices. To devise effective remediation measures for these contaminants, the transportation behavior of the pollutants must be examined.
Dilshod Kulmuradov, Amran Mezher Lawas, Sardor Karimov, Haider Mohammed Abbas, Mustafa Tursunov, Dr. Anamika Pandey   +5 more
openaire   +1 more source

Integrating Satellite Retrievals, Numerical Models, and Machine Learning for Global Groundwater Recharge Estimation

Water Resources Research
Knowledge of the groundwater recharge rate determines whether aquifer use is sustainable. However, accurately measuring recharge globally presents significant challenges due to the complexity of subsurface processes and the lack of direct observational ...
M. E. Soylu, D. Entekhabi, R. L. Bras
doaj   +1 more source

The role of stony soils in hillslope and catchment runoff formation

Journal of Hydrology and Hydromechanics, 2020
The role of stony soils in runoff response of mountain catchments is rarely studied. We have compared simulated response of stony soils with measured catchment runoff for events caused by rains of small and high intensities in the mountain catchment of ...
Mujtaba Babar, Hlaváčiková Hana, Danko Michal, de Lima João L.M.P., Holko Ladislav   +4 more
doaj   +1 more source

A review of preferential flow and transport through root channels

Vadose Zone Journal, Volume 25, Issue 5, September/October 2026.
Abstract Preferential flow can contribute up to 80%–90% of the flow and transport in the vadose zone. The root channels are the most prevalent form of preferential pathways. They create an evolving network of preferential pathways and are biogeochemical hotspots due to preferential transport of nutrients and other organics, colonization of bacteria ...
Ishank Agarwal, Richa Ojha, Saumyen Guha
wiley   +1 more source

Tradeoffs in Model Performance and Effort for Long-Term Phosphorus Leaching Based on In Situ Field Data

Vadose Zone Journal, 2018
Phosphorus and N are critical nutrients for agriculture but are also responsible for surface water enrichment that leads to toxic algal growth. Although P loading to surface waters has traditionally been thought to occur primarily in surface runoff ...
R.P. Freiberger, D.M. Heeren, D.E. Eisenhauer, A.R. Mittelstet, G.A. Baigorria   +4 more
doaj   +1 more source

Three‐Dimensional Simulation of Tile Drainage System for Farmland: Quantifying Tile Drainage Impacts on Hydrological Cycle

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Tile drainage is widely adopted in the U.S. Midwest to manage excess soil water and sustain agricultural productivity, yet its impact on key water budget components—particularly evapotranspiration (ET)—remains insufficiently understood under varying drainage designs and climate conditions.
Jiawei Fan, Kaiyu Guan, Bin Peng, Mengqi Jia, Zewei Ma, Xingyuan Chen, Glenn Hammond, Matthew Helmers, Ming Pan   +8 more
wiley   +1 more source