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SOIL

Affected areas

Types of damage

Class A

Class B

Class C

Class D

Infrastructure

Equipment

Restoring the capacity

background

Salt affected lands assessment

Sketching impacts of the tsunami on paddy fields

ASSESSING THE TYPES OF DAMAGE


Physical damage and destruction

Siltation and levelling of fields, destruction of water reservoirs, bunds and dykes

Destruction of irrigation and drainage facilities

Destruction of water streams/linkages to the sea and of protection infrastructure against sea/salt intrusion.

Saline water infiltration in flooded non drained area (where sea water has been trapped)

Saline sediment deposition in some areas and deposition of deep layers of infertile sediments possibly leading to new problems of water logging and salinity

Banda Aceh Shore, Indonesia © DigitalGlobe


Loss of water resources

Contamination of domestic water supply (wells) by salt water, from dead bodies and polluted from disruption of chemical container or other infrastructure

High perturbation or destruction of lagoon systems (physical linkage to the sea and chemical water balance)

Coastal deforestation and related risks for erosion



Loss of farming capital

Loss of productive lands due to massive erosion/scouring

Loss of draft animals, mainly buffalos, and small livestock

Loss of hand tools and other implements



Loss of human capacity

Losses in short and long-term human/managerial capacities to cope with agriculture activities, with planning and implementing rehabilitation programs/projects.

 

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WATER

ANIMALS

PLANTS

SOIL

Publications

FAO Field guide:The impact of salt water on agricultural land in Aceh Province.

A Framework for Reclamation Action Plan for Affected Soils

The use of saline waters for crop production

Soil salinity assessment: methods and interpretation of electrical conductivity measurements

Water quality for agriculture

Related links

Water Resources, Development and Management website

International Rice Research Institute: Tsunamis and Rice

 contact: tsunami@fao.org

© FAO, 2005