ENVS 3080 Lecture Notes - Lecture 9: Soil Retrogression And Degradation, Tillage, Soil Fertility
8 Jan 2018
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Unit 9: restoration of degraded soils and saline/sodic soils: make note of the definition of the term restoration as used by blanco and lal as opposed to the term reclamation. Restoration refers to the process of repairing and returning damaged or degraded soils (e. g. , eroded agricultural soils, mined soils) to a condition like the pr degradation level of capability for supporting plant growth and maintaining environmental quality. Restoration is used instead of reclamation, which sometimes refers to the processes of creating new lands. The length of time required to restore degraded soils varies with ecosystem conditions, severity of degradation, restorative strategies, and climate. A degraded soil that has not lost its topsoil can recover within 3 5 yr under proper management (daily, 1995). 15. 1 methods of restoration of agriculturally marginal soils. An agriculturally marginal soil is prone to accelerated erosion and is thus characterized by adverse properties, and low fertility and productivity.
