Physico-chemical processes of organic pollutants occurring in water, reclaimed wastewater, soils and sediments.

Solitons, diffraction of wave packets, fingering phenomena.

Interactions between soil, water and vegetation in drylands, soil salinization/sodification, dynamics of nitrogen in the soil.

Interactions between soil, water and vegetation in drylands, soil salinization/sodification, dynamics of nitrogen in the soil.

Physical chemistry of soils and clays; soil and clay interfacial reactions; adsorption and transformation of natural and anthropogenic compounds by clays.

Soil-root interactions and water and nutrient uptake, Spectral induced polarization for non-invasive detection of rhizosphere processes.

Soil chemistry and soil fertility, related to plant nutrition and environmental aspects

Soil-plant-atmosphere continuum, Atmospheric chemistry, Air pollution, Cloud microphysics.

Formation of water repellent soils by irrigation, Effect of contact angle on water flow in soils, Plant-water relationships, Irrigation control.

Water Treatment and Pollution Control Technology.

Wastewater reclamation and reuse, effects on soil geochemistry, Soil pollution by heavy metals, Long-term soil deterioration processes.

Physical chemistry of humic substances, minerals and their interactions, Effects of organic matter on soil fertility and structure.

Flow in porous media, hydrology, soil-water relations, hysteresis, theoretical modeling of soil properties.

Water purification from organic and inorganic contaminants and microorganisms by micelle-clay and organo-clay complexes.

Environmental salinity and drought stresses: yield transpiration relation- ships, modeling, and management of irrigation and environment protection.