Article
Agronomy
Jana Podhrazska, Josef Kucera, Jan Szturc, Martin Blecha, Petr Karasek, Igor Pelisek, Jana Konecna
Summary: This study evaluates the characteristics of Chernozems damaged by long-acting water erosion and finds that the deteriorated soil in the accumulation slope parts has lower infiltration capacity and unsatisfactory soil conditions. The transportation and eluvial slope zones also show poor porosity and aeration values.
Article
Green & Sustainable Science & Technology
Mohamed Abu-hashim, Holger Lilienthal, Ewald Schnug, Rosa Lasaponara, Elsayed Said Mohamed
Summary: Organic farming has been promoted as a way to conserve a favorable soil environment. This study compares the effects of conservation tillage practices in organic management and conventional management on soil physical properties. The results show that conservation tillage in organic management significantly improves soil properties such as infiltration capacity, hydraulic conductivity, and penetration resistance, compared to conventional management.
Article
Environmental Sciences
B. Zhu, L. Chu, Fengyi Yang, T. F. Fwa
Summary: This study proposed a new method for evaluating the infiltration capacity of IBPPs using a finite-volume computational fluid dynamic method to develop a simulation model. The model can calculate the infiltration capacity of different permeable pavements, providing a meaningful common basis for comparison.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
David P. Dethier, Noah Williams, Jordan F. Fields
Summary: The hydrology of alpine and subalpine areas in the Colorado Front Range is changing due to warming and alterations in precipitation patterns. The study found that soil hydraulic conductivity is comparable to shallow aquifer hydraulic conductivity. Higher hydraulic conductivity was observed in alpine areas underlain by periglacial deposits and lower conductivity in till-covered subalpine areas. As temperatures rise and snowmelt occurs earlier, alpine soils may become more vulnerable to drought, impacting the connectivity between snowmelt streams and downstream areas.
Article
Environmental Sciences
Shmuel Assouline
Summary: The properties of the upper soil layer play a crucial role in determining infiltration, runoff, and evaporation processes, essential for soil agricultural and hydrological functioning. Understanding important hydrological and agricultural functions based on soil water retention characteristics can provide valuable insights for efficient design and planning in agricultural and hydrological applications.
WATER RESOURCES RESEARCH
(2021)
Article
Environmental Studies
M. Abu-hashim, H. Lilienthal, E. Schnug, Dmitry E. Kucher, Elsayed Said Mohamed
Summary: Adequate knowledge of tempo-spatial variability on soil hydraulic properties is crucial for irrigation scheduling and precision farming. This study compares the impact of tempo-spatial variations in long-term conservation tillage applications in organic farming on soil properties. The results show that long-term organic farming increases saturated hydraulic conductivity (Ks) values, while soil texture remains relatively consistent over time. Spatial variations in Ks values are attributed to differences in soil texture and effective bulk density. Furthermore, soil depth compactness is more pronounced in organic farming and results in a decreasing trend in Ks values over time.
Article
Soil Science
Desale Kidane Asmamaw, Pieter Janssens, Mekete Dessie, Seifu Tilahun, Enyew Adgo, Jan Nyssen, Kristine Walraevens, Jan De Pue, Alemu Yenehun, Fenta Nigate, Ashebir Sewale, Wim M. Cornelis
Summary: In Ethiopia, the problem of soil fertility caused by acidity significantly limits agricultural productivity. This study examined the impact of using a combination of lime, manure, and inorganic fertilizer on the hydrophysical properties of acid clay Nitisols in the Koga irrigation scheme. The results showed that the combined application of organic manure, lime, and inorganic fertilizer enhanced the infiltration rate, water holding capacity, and grain yield of the soil.
SOIL & TILLAGE RESEARCH
(2022)
Article
Ecology
Kimberly O'Keefe, Seton Bachle, Rachel Keen, E. Greg Tooley, Jesse B. Nippert
Summary: Root structure is crucial for water-use strategies, as woody roots show higher hydraulic conductance and mechanical strength in different soil depths, while shallow grass roots have unique trait combinations enabling rapid water uptake and tolerance to dry soils under multiple fire regimes.
FUNCTIONAL ECOLOGY
(2022)
Article
Agronomy
Lucio Aderito dos Anjos Veimrober Junior, Alisson Jadavi Pereira da Silva, Hans Raj Gheyi, Francisco Airdesson Lima do Nascimento, Mairton Gomes da Silva, Lucas Melo Vellame
Summary: To reduce water scarcity and ensure food security, increasing water productivity in irrigated agriculture is crucial. This study found that the upper threshold of matric potential in drip irrigation management affects fruit yield and water productivity. It is recommended to set the potential range for yellow passion fruit irrigation management centered around -10 kPa, with upper and lower thresholds between -6.95 and -19.85 kPa.
IRRIGATION SCIENCE
(2022)
Article
Environmental Sciences
John R. Nimmo, Paige R. Voss
Summary: Because tension infiltrometers apply water through a disk of finite size, the infiltrated water moves laterally as well as downward. Some commonly used formulas correct for the multidimensional effects by subtracting an estimate of the laterally spreading flow, but these subtractive formulas lose accuracy for disks smaller than about 200 mm in diameter. We developed a new formula that uses a multiplicative factor instead of a subtracted term to achieve a more reliable calculation of hydraulic conductivity (K) for small disks.
WATER RESOURCES RESEARCH
(2023)
Article
Engineering, Civil
D. Moret-Fernandez, B. Latorre, L. Lassabatere, S. Di Prima, M. Castellini, D. Yilmaz, R. Angulo-Jaramilo
Summary: The study investigates the influence of layered soils on the estimation of K-s and S using Sequential Infiltration Analysis (SIA) method, presenting a new approach for analyzing infiltration curves on layered soil profiles. The results show improved estimates of saturated hydraulic conductivity and sorptivity with the SIA method, especially in the presence of soil layering.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Civil
Gopal Kumar, D. R. Sena, B. K. Rao, R. S. Kurothe, Nyonand Yadav, P. R. Bhatnagar, Uday Mandal
Summary: The experimental results indicate that a high sediment concentration can cause a sharp reduction in filter hydraulic conductivity. Introducing a filtration hiatus of 2 days between tests can significantly improve the hydraulic conductivity of the filter matrix. Using a pre-entry sedimentation trap before filtration can maintain scaled-up hydraulic conductivities for a longer duration.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Civil
Gioacchino Francesco Andriani, Nicola Pastore, Concetta Immacolata Giasi, Mario Parise
Summary: This study presents an integrated investigation of the hydraulic properties of homogeneous calcarenites with a complex pore network, focusing on water infiltration and retention mechanisms under high water inflow from dry to wet conditions. The experimental and model-based assessment of the materials' hydraulic properties under unsaturated conditions was conducted, with a particular emphasis on the dominance of macro-porosity on water flow and infiltration rate. Theoretical solutions and model predictions were compared with experimental data, highlighting the gravity-driven flow through macropores as the main mechanism for wetting front propagation.
JOURNAL OF HYDROLOGY
(2021)
Article
Soil Science
Rafael Villarreal, Luis Alberto Lozano, Esteban M. Melani, Nicolas Guillermo Polich, Maria Paz Salazar, Guido Lautaro Bellora, C. German Soracco
Summary: Research shows that introducing cover crops under NT management can promote the increment of a secondary pore system related to structural soil porosity during the first year, enhancing unsaturated hydraulic conductivity and pore connectivity, especially at the end of the summer crop cycle.
SOIL & TILLAGE RESEARCH
(2021)
Article
Environmental Studies
George Kargas, Dimitrios Koka, Paraskevi A. Londra
Summary: This study investigates the determination of soil saturated hydraulic conductivity (K-s) and soil sorptivity (S) using three different methodologies for eight different soils. The results suggest that the relative errors in predicting S were generally smaller than those of K-s. The nonlinear optimization procedure using the Valiantzas equation provided the best prediction of S and K-s, while the two-term approximate expansion of Haverkamp had the highest relative errors for both parameters. The various forms of the Haverkamp equation and the Latorre method showed good predictions of S and K-s for fine-textured soils.
