STG1312 SOIL DEGRADATION AND REMEDIATION

Presented By:
Mohamad Hilmi Ibrahim

STG1312 (SOIL SCIENCE)

Soil Degradation and Remediation

Presentation Outline

Content List

01. 02.
Soil Degradation Soil Remediation
Soil Erosion Physico-chemical Clean-up
Physical Degradation Biological Clean-up
Desertification Phytoremediation
Chemical Degredation Soil Conservation

Physical Degradation

Soil Degradation

Soil Degradation

Source:FAO 1996

Examples of Soil Degradation

World Soil Degradation

Soil Erosion

Soil Erosion Process

Soil Erosion Process

Types of Soil Erosion

Factors Affecting Soil Erosion

Impact Of Soil Erosion

Impact Of Soil Erosion

Physical Degradation

1. Surface Crust and Seals

Physical Degradation

1. Surface Crust and Seals

Physical Degradation

2. Soil Compaction

Physical Degradation

2. Soil Compaction

Physical Degradation Control

Degradation of Organic Soils

Desertification

Desertification

Chemical Degradation

Soil contamination/pollution occurring when
sufficient quantities or concentrations of harmful
substances accumulate beyond levels in soils.

Chemical Degradation

Source Of Chemical Degradation
Agricultural
Industrial including dredge spoils petroleum
spills
Municipal including landfills
Nuclear

Chemical Degradation

Soil Remediation

Soil Remediation

In Situ Cleanup (physico-chemical)

In Situ Cleanup (physico-chemical)

In Situ Cleanup (biological)

In Situ Cleanup (biological)

In Situ Cleanup (biological)

Plants ideal for phytoremediation

1.Fast growing
2.Have high biomass
3.Extensive root system
4.Be easy to harvest
5.Tolerate and accumulate metals in their
6.Harvestable parts

In Situ Cleanup (biological)

In Situ Cleanup (biological)

Advantage & Disadvantage of
Phytoremediation

Soil Conservation

Definition
The use of land, within the limit of economic
practicability, according to its capabilities (the way
nature made land) in order to keep it permanently
productive.
Any set of measures which control or prevent soil
erosion, or maintain soil fertility

Soil Conservation

Soil Conservation Aims

Soil Conservation Aims

Conclusion

Soil degradation and remediation are essential topics for
the preservation of the environment and the health of our
planet. As the human population grows, the need for food,
water, and energy increases, while at the same time, our
planet's resources are being depleted. Soil degradation and
remediation can help us improve our environment while
also ensuring that we have enough food, water, and energy
for future generations.