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Definition of “Land Development District” 

A “Land Development District” refers to the selected area to be developed by integrated implementation involving various land development disciplines such as surveying and making geographic maps, soil maps, land use maps, land use planning maps, as well as constructing soil and water conservation systems, developing water resources and improve soil conditions.
At present, the Land Development Department (LDD) has set up 547 land development districts, covering a total area of 43 million rai.

Operation Zone  
“Operation Zone” refers to an area (within a land development district) with problems in using the land, so there needs to have a number of land development activities done in integration.

It is the demonstration and transfer of land development technologies to farmers and general public, so they will realize the benefits of efficient and sustainable land development for agriculture.

To distribute Land Development Districts in targeted areas that have been analyzed and planned in every province.

Operational Steps
1. A Land Development Station (LDS) selects agricultural areas that have land use problems and recruit a number of farmers to participate. Boundaries of the area will be established onto a 1:50,000 scale geographic map to cover sub-watersheds, and propose to the Land Development Regional Office (LDRO).
2. Office of Survey and Mapping Technology (OSMT) will establish boundaries of sub-watersheds (as selected by land development stations) in 1:25,000 scale ortho photo maps.
3. Land Use Policy and Planning Office (LUPPO) sets up land use maps according to the watershed principle with a scale of 1:25,000 along with making soil map, present land use map, water resources and irrigation map, legislative forest map and primary land use map.
4. Land Development Regional Office and Land Development Station jointly survey and collect basic data of the operation zone in a land development district including roads, villages, rivers, water resources, area under irrigation, soil types and land holding; then analyze and find the way to solve problems, in order to apply soil and water conservation measures and organize activities to operate in the operation zone on a map of 1:4,000 scale.

Farmers and general public have realized the benefits from soil and water conservation, soil improvement and rehabilitation and land resource development for effective and sustainable use in agriculture.

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