Advanced soil conservation for African drylands: from erosion models to management theories

Pedosphere, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

---

Two-dimensional Capillarity-Driven Seepage From a Lined Buried Ditch: the Kornev Subsurface Irrigation “Absorptional” Method Revisited

Advances in Water Resources, Journal Year: 2025, Volume and Issue: unknown, P. 104917 - 104917

Published: Feb. 1, 2025

Language: Английский

---

Analytical and HYDRUS2D models of seepage from buried trapezoidal ditches as subsurface capillarity-driven irrigating units

Modeling Earth Systems and Environment, Journal Year: 2025, Volume and Issue: 11(2)

Published: Feb. 16, 2025

Language: Английский

---

Modeling Saline Water Supply for Irrigation of Tomatoes in Semi-Arid Conditions Using Hydrus-1D

Published: May 6, 2024

In arid and semi-arid regions like Tunisia, irrigation water is typically saline, posing a soil crop salinization risk yield reduction. This research aims to study the combined effects of matric osmotic potential stresses on tomato root uptake. Plants were grown in pot field experiments loamy-clay soils irrigated with three different qualities: 0, 3.5, 7 dS/m. The Hydrus-1D model was used simulate dynamics subsurface salts. Successful calibration validation against measured salt profiles enabled examination Relative yields, indirectly estimated from actual transpiration, indicated that multiplicative stress response effectively simulated yields impact saline yields. gradual zone further evidenced this effect. scenario considering temperature increase 2°C had no significant experiments.

Language: Английский

---

Modeling Irrigation of Tomatoes with Saline Water in Semi-Arid Conditions Using Hydrus-1D

Land, Journal Year: 2024, Volume and Issue: 13(6), P. 739 - 739

Published: May 24, 2024

In arid and semi-arid regions like Tunisia, irrigation water is typically saline, posing a risk of soil crop salinization yield reduction. This research aims to study the combined effects matric osmotic potential stresses on tomato root uptake. Plants were grown in pot field experiments loamy-clay soils irrigated with three different qualities: 0, 3.5, 7 dS/m. The Hydrus-1D model was used simulate dynamics subsurface salts. Successful calibration validation against measured salt profiles enabled examination Relative yields, indirectly estimated from actual transpiration, indicated that multiplicative stress response effectively simulated yields impact saline yields. experimental modeling results provide information aid determining salinity levels conducive optimal growth. findings indicate selected affect growth varying degrees. Specifically, between 0 3.5 dS/m, significant reduction above this level. gradual zone further evidenced effect. scenario considering temperature increase 2 °C had no experiments.

Language: Английский

---

Assessing the Hydrological Response to Land Use Changes Linking SWAT and CA‐Markov Models

Hydrological Processes, Journal Year: 2024, Volume and Issue: 38(11)

Published: Nov. 1, 2024

ABSTRACT Land use change, as a major driving factor of watershed hydrological process, has significant influence on change. In addition, series models, important tools for simulating impacts, are widely employed in studying land However, when employing model to analyse the impacts changes, most previous studies focused evolution historical change and lacked reasonable predictions future use. Therefore, it is necessary extend such scenarios cope with possible variations basin. Given this, this paper making Wuwei section Shiyang River Basin study area, coupled SWAT (Soil Water Assessment Tool) simulation CA‐Markov (cellular automata‐Markov chain) prediction regional effects caused by changes. general directly uses system‐generated suitability atlas. contrast, applied logistic regression Multi‐criteria evaluation (MCE) methods construct atlas, thereby establishing Logistic‐CA‐Markov MCE‐CA‐Markov models. Based results, main results follows: (1) The area mainly grassland barren, accounting more than 80%. Additionally, forest changing at highest rate among all types. (2) terms percentage forest, predicted (Multi‐criteria evaluation‐cellular largest coverage (57.78%), whereas Logistic lowest (54.69%), indicating that former pays attention sustainable development ecological environment. (3) area's R 2 = 0.83, NSE 0.79, PBIAS −18.6%, validation 0.81, 0.76, −17.8% demonstrate favourable application model. (4) simulated runoff under scenarios, amount increasing would eventually rise water yield (WYLD) lateral (LATQ), subsurface (GWQ), reducing surface (SURQ). contributes better understanding impact resources balance, thus guiding management development.

Language: Английский

---

Ecosystem Vulnerability Has Declined More in China's Impoverished Areas During 2013-2020

Published: Jan. 1, 2024

Language: Английский

---