A5088793809- Soil erosion and sediment transport
- Hydrology and Sediment Transport Processes
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Irrigation Practices and Water Management
- Soil Carbon and Nitrogen Dynamics
- Landslides and related hazards
- Pesticide and Herbicide Environmental Studies
- Groundwater and Watershed Analysis
- Geological formations and processes
- Aeolian processes and effects
- Environmental Toxicology and Ecotoxicology
- Hydraulic flow and structures
- Pharmaceutical and Antibiotic Environmental Impacts
- Remote Sensing in Agriculture
- Plant responses to water stress
- Soil and Water Nutrient Dynamics
- Soil and Unsaturated Flow
- Water Treatment and Disinfection
- Land Use and Ecosystem Services
- American Sports and Literature
- Fire effects on ecosystems
- Water and Land Management
- Biological Control of Invasive Species
- Plant Disease Management Techniques
Ministry of Agriculture and Rural Development
2013-2024
Western University
2006-2009
Ministry of Agriculture and Rural Development
2009
Hebrew University of Jerusalem
2001
Abstract Geomorphological studies of braided rivers still lack a consistent measurement the complexity pattern. Several simple indices have been proposed and two (channel count total sinuosity) are most commonly applied. For none these has there an assessment sampling requirements no systematic study equivalence to each other their sensitivity river stage. Resolution issues is essential for progress in morphology dynamics at scale channel network. A series experiments was run using...
Desert ephemeral gravel bed streams typically have surfaces that are relatively unarmored compared to the substrate below, while in humid and snowmelt areas well‐armored surfaces. The degree of armoring can be characterized terms an armor ratio defined as surface median size size. A set field data shows desert with ratios ranging from 0.5 2.4 average value 1.2. snowmelt‐fed same ranges 2 7, 3.4. reason for this difference is sought differing hydrological characteristics sediment supply...
Physical models of gravel braided rivers were used to investigate the adjustment braiding intensity step changes in channel‐forming discharge and mechanisms by which channel pattern maintenance occurs. A developed at low was subjected two increases between given time develop stable average response each steady discharge. Active (with visible bed material movement) total networks mapped throughout experiment. Total exceeded active both adjusted a stable, value discharge, indicating that...
Micro-estuarine ecosystems have a surface area <1 km2 and are abundant in Mediterranean regions. As result of their small size, these systems particularly vulnerable to the effects chemical pollution. Due fluctuating flow conditions base dominated by treated wastewater effluents flood events transporting rural urban non-point-source pollution, micro-estuaries under dynamic risk regime, consequently struggling provide ecological services. This 2 year study explored occurrence risks...
1. Riparian zones are vital areas of interaction between land and rivers often degraded by several pressures such as urbanisation, intensive agriculture river engineering works. 2. This policy brief provides five key messages recommendations to be considered policy-makers, scientists, managers, stakeholders enhance riparian zone management. 3. Adopting an integrated socio-economic environmentally dynamic view will ensure the sustainable management zones. 4. In light climate change, it is...
Abstract The impact of wastewater flow on the channel bed morphology was evaluated in four ephemeral streams Israel and Palestinian Territories: Nahal Og, Kidron, Qeult Hebron. Channel changes before, during after halting were monitored. causes a shift from dry with intermittent floods to continuous pattern similar that humid areas. Within few months, nutrient‐rich leads rapid development vegetation along bars. colonization part active by increases resistance as well bank stability, limits...
Temporal changes and spatial patterns are often studied by analyzing land-cover (LCCs) using spaceborne images. LCC is an important factor, affecting runoff within watersheds. The objective was to estimate the effects of 20 years LCCs on rainfall-runoff relations in extreme rainfall event. A 1989 Landsat TM-derived classification map used as input for a Kinematic Runoff Erosion (KINEROS) hydrological model along with precipitation data Model calibration performed measured volume data....
ABSTRACT Degraded water quality is one of the well‐documented adverse effect intensive agriculture on riverine environment. It can result from nutrient leaching agricultural fields, stream flow harvesting, irrigation with treated wastewater, full or partial damming, and cultivating riparian zone. The weight each cause regime only sometimes apparent. Thus, restoration planning requires understanding dynamics quality, stakeholders' efforts do not address right stressors time. This further...
Context Although both plant cover and mulch are considered for erosion control in arid semi-arid regions, they have divergent impacts on soil ecology. Aim We examined the effects of orchard floor management practices density diversity free-living nematode communities relevant abiotic properties. Methods Soils were sampled winter a citrus Sharon region Israel from plots that 6 years had been under (1) annual native species; or (2) Avena sativa Vicia villosa, planted between tree rows; (3)...
In Israel, like in many other countries, professionals the field of river restoration offer "restoration" actions based on form and static landscaping design rather than function, i.e., eco-hydro-morphological processes. process-based restoration, it is assumed that system maintains a dynamic complexity changes space time stream corridors alluvial valley which flows. The flow path morphology riverbed are temporary. Herein, focus functions stream: transporting sediments conveying range water...
Temporal changes and spatial patterns are often studied by analyzing land-cover (LCCs) using spaceborne images. LCC is an important factor, affecting runoff regime within watersheds through processes such as urbanization, agricultural activities, quarries afforestation. The objective of this research was to estimate the effects 20 years LCCs on rainfall-runoff relations in extreme rainfall event, a sub-basin scale. A Landsat TM-derived classification map used input for Kinematic Runoff...
Geomorphic assessments are crucial for understanding stream processes, defining ecological conditions, and providing improved management restoration recommendations. Here we present the first systematic geomorphic assessment conducted in a perennial Israel. The morphological quality index (MQI) protocol was applied between 2017-2018 to test applicability of this methodology approach Eastern Mediterranean ecosystems, where heavily regulated streams common no natural reference exist due...
Geomorphic assessments are crucial to understanding stream processes, defining ecological conditions, and improving management restoration recommendations. This project presents the first systematic geomorphic assessment of a perennial in Israel. The Morphological Quality Index (MQI) protocol was applied 2017–2018 test its applicability for Eastern-Mediterranean ecosystems, where heavily regulated streams common, hydrologic variability is high, no natural reference exist due long-term...