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LDD'S Application programs for sharing GIT among less skilled endusers Parida Kuneepong and Rangsridh Boonsin Land Development Department, Ministry of Agriculture and Cooperatives Bangkok 10900, Thailand. Email: Parida@loxinfo.co.th Abstract Land Development Department (LDD) had developed application programs in response to the need of LDD's regional offices to build and share GIS applications among poorly skilled end users. Originally, the project was developed in collaboration with Chiang Mai University mostly under ArcView environment to be handed out to LDD's regional offices and later on to the bodies that work in the territory, such as provincial administration and individual farmers. All the functions of the complex application in the programs were brought into ArcView with an easy to use interface. LDD has until now developed 5 personalization with 4 of them are in ArcView environment, namely:
Land Development Department The main tasks of the Land Development Department (LDD) are (i) survey of soil and land, (ii) research on soil and land development (including soil and water conservation) and (iii) land use planning for the economic development and/or conservation of land resources. In the 8 th National Development Plan (1997-2001), the development of a soil and land data base has been included as an additional task for LDD. This information system will serve LDD’s internal needs for information on land resource data for soil and water conservation and land use planning as well as cater for information on land resources required by government and private institutions. To support the development of the information system LDD has established a Center of Information Technology to coordinate digital activities such as the design of soils and land databases and an implementation plan. LDD's Application Programs The application programs has been developed by LDD's Center of Information Technology in collaboration with Chiang Mai University to meet the needs of its 12 regional offices,70 stations of LDD as well as individual and institutions concern to build and share GIS applications among poorly skilled end users. The systems were distributed in CD-ROM.
SoilView is the first ready made
GIS application program in Microsoft
Windows. It was developed in
Avenue language from soil
information and their suitability for
economic crops all over Thailand to
be presented both in map (scale 1:
50,000) and table formats. All the
functions of the complex application
in the programs were brought into
ArcView with an easy to use Thai
interface. Users can choose the
menues according to their purposes
in term of administrative units, map
sheets, layer of information and
project boundaries.
LandPlan is a GIS application
program under ArcView
environment in Thai Graphic
User Interface Windows.
LandPlan was developed to
support national resource
development planning. It can
be possible to retrieve and
analyse land use, land cover ,
suitability and limitation of
lands for specific crops. The
presentation could also be in
maps (scale 1: 50,000) and/or
tables.
AgZone is the application program for
agro-ecological zoning follow FAO land
evaluation (FAO, 1976). Parameters
used in the program are soils, land
use/land cover, land units, forest areas,
irrigation areas, moisture availability,
LUT and distance from factory in specific
crops. The highly suitable zone (Z-I) is
from highly suitable to moderately
suitable soils within irrigated areas,
exclude forests, urban areas and < 1 km
from roads.
EROSView is an application
program to retrieve lands that
are prone to erosion under
ArcView environment in Thai
Graphic User Interface
Windows. Spatial parts
compose of soil, land use/ land
cover, density of rain fall and
erosion hazard while soil
properties, land use and names
are attributes. It can be
retrieving and analyzing soil
erosion and factors inducing
erosion through Thai menu bars
in terms of administrative units,
main watersheds and project
areas.
ThaiPedon was developed by
visualBasic6.0 with Map Object 30 for
retrieving soil typical profiles (USDA,
1999) from the soil maps. Their
descriptions included taxonomy,
properties and pictures of the profiles.
The system combines soil map of
scale 1:50,000 in shape files and their
attributes that were linked with their
pictures by Microsoft JetOLEDB 4.0.
There are main menues: areas,
administrative units, soil information
and their suitability in specific
purposes.
Training and Technical support Training and Technical support will be provided by LDD and/or Chiang Mai University both in LDD head office (Bangkok) and Its regional offices as well as individual and institutions concern by request to make the application possible for poorly skilled end users. References
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