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Griffith University, Brisbane (2015)

Carbon Dynamics in Salt-Affected Soils

Sevda Amini

Titre : Carbon Dynamics in Salt-Affected Soils

Auteur : Sevda Amini.

Université de soutenance : Griffith University, Brisbane

Grade : Doctor of Philosophy (PhD) 2015

Résumé
Salt-affected soils are soils with high concentrations of dissolved mineral salts in their profiles to the extent that such dissolved salts adversely affect crop production. Globally 75 countries have been recognized as having vast areas of salt-affected lands. Australia, United States, Turkey, India, Iran, Iraq, Mexico, Syria, Pakistan, and China are countries with serious salinity problems. In a recent estimate, nearly 831 million hectares of land are salt-affect worldwide. Salt-affected soils mostly exist in arid and semiarid regions of the world and many salt-affected wastelands have been productive lands in the past. Worldwide about 95 million hectares of soils are under primary salinization (i.e salinity occurs naturally in soils and water) whereas 77 million hectares suffer from secondary salinization (as a result of human activities and ever rising groundwater table).

Mots clés : Saline-sodic soils, Soil Organic Carbon (SOC)., Carbon (C) stocks behave in salt-affected lands

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Page publiée le 30 août 2016, mise à jour le 6 juillet 2017