di prima, simone fernandes, gersende burguet, maria roder, ludmila ribeiro giannini, vittoria giadrossich, filippo lassabatere, laurent comegna, alessandro
Time-lapse ground-penetrating radar (GPR) surveys, combined with automated infiltration experiments, provide a non-invasive approach for investigating the distribution of infiltrated water within the soil medium and creating three-dimensional images of the wetting bulb. This study developed and validated an experimental protocol aimed at quantifyin...
tao, yu peng, siwen chen, jiazhou long, shiping liao, bin
Reynolds number (Re), pore water pressure (P), and water flow shear force (τ) are primary indicators reflecting the characteristics of subsurface flow. Exploring the calculation of these parameters will facilitate the understanding of the hydrodynamic characteristics in different subsurface flows and quantify their differences. Hence, we conducted ...
Gao, Chao Kong, Jun Wang, Jun Chen, Weilun
Published in
Frontiers in Marine Science
This study examined the influence of preferential flow on pore water flows and marine nitrogen transport reaction in variable saturation and variable density coastal aquifers. The 2-D unconfined aquifer model established was based on the software COMSOL by coupling the dynamic and chemical processes together. The results showed that preferential fl...
xiuli, xu zhao, jun guangdong, wu yunliang, li hou, lili
Background: root-zone water transport is crucial in the water transformation from precipitation to groundwater, directly influencing soil moisture distribution and resource acquisition for wetland plants. Methods: This study investigated the movement mechanism of root-zone (0–80 cm) soil water in the Poyang Lake wetland, China, during a dry year. H...
rukh, shah akhtar, mohammad saleem alshehri, fahad mehmood, ayaz malik, kouser majeed almadani, sattam khan, ahmad shahab, muhammad
Dissolved arsenic (As) may appear at the tile line level through preferential flow (PF), leading to contamination of shallow water bodies. Limited work on the movement of As forms in field soils urged the need for more research. The PF of arsenate (As(V)) and arsenite (As(III)) compared to chloride (Cl) at constant flow under saturated (10 mm), sli...
parlakidis, paraskevas adamidis, george s. gikas, georgios d. vasiliou, sofia kissa, melpomeni doitsinis, konstantinos alexoudis, christos vryzas, zisis
The use of selective herbicides is one of the best methods for weed management. However, the extensive use of herbicides can have adverse impacts on non-target organisms. The goals of this study were to assess the dissipation kinetics, leaching, and ecological risk assessment of S-metolachlor and benfluralin residues in silty loam soil planted with...
xin, li yang, li qiang, li zhang, xiaozhou shi, xuechen yudong, lu zhang, shaoxiong zhang, liting
Preferential flow is widely developed in varieties of voids (such as macropores and fissures) in loess areas, affecting slope hydrology and stability and even leading to geological disasters. However, the model of seepage evolution with dynamic preferential flow is not clear, which obstructs the disclosure of the mechanism of landslides induced by ...
paraskevas, charalampos karpouzos, dimitrios babajimopoulos, christos
Leak 2D is a new two-dimensional dual permeability mathematical model for the simulation of the preferential flow in the vadose zone. In this model, water flow in the soil matrix domain is described by the two-dimensional h-based Richards’ equation. Water flow in the fracture domain is estimated using the kinematic wave approach. Richards’ equation...
guan, ning cheng, jinhua shi, xueqi
The ecological environment in the karst region of southwest China is fragile, and vegetation degradation is considered the main cause of this phenomenon. Vegetation growth is affected by preferential flow due to a large number of fissures and macropores in the soil. Therefore, the preferential flow and preferential paths in local typical vegetation...
zhao, zhimeng wang, qinghe
Preferential flow is the most common form of water loss occurring at the interface between rock and soil (hereinafter referred to as “rock–soil interface”) in karst areas, and it is also one of the important factors causing soil water leakage into the underground. Therefore, it is of great significance to cut off the pathway of soil water loss thro...
