• Nitrogen cycling in arid soils

• The role of desert soil crust in nutrient cycling

• The interrelationships between desert plants, soil bacteria and climate and their effects on

   biogeochemical cycling and desertification 

• The microorganisms in desert plants’ rhizosphere and phyllosphere 

• The effect of rain events in the desert on microbial diversity, abundance and activity

• Bacterial diversity and its role in maintaining functional arid ecosystems

• The microbial inhabitants of desert rocks

• Bio-methane production from animal waste in arid environments

• Bio-remediation of soils and water bodies in arid environments

• Nutrient recovery from bio-waste 

• Sources of greenhouse gases

• Biofiltration and mitigation of greenhouse gases

• Treatment and reclamation of marginal water (greywater)

• Water and wastewater treatment