Soil information system based on soil taxonomy

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  • Soil Taxonomy 土壌分類に基づく土壌情報システム

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Abstract

The soil is most important factor of the natural resource as it is directly related to food production in Asian countries. The soil types such as Oxisols and Aridisols peculiar to tropical region are distributed widely in Asian countries where Soil Taxonomy was adopted for soil classification. The computerized soil information system is useful to understand the present soil nature on a national scale. The computerized soil information system based on the Soil Taxonomy classification system was developed at the Bureau of Soil and Water Management (BSWM), the Department of Agriculture, Philippines. This system have several functions, which are to be easy to enter large amount soil data, to update, to retrieve soil data and to make interpretation data for different users, and to able to create digital soil map with topographic information (road network, contour etc.), and to output interpretation map such as pH distribution map and to make three-dimensional soil map with contour. Manipulation of the tabular soil database is done using programs written the FOXPRO programming language while the manipulation of the spatial component (maps) can be done in the GIS software. This system can spread to other Asian countries where Soil Taxonomy was adopted. Soil condition of other countries will be discussed between scientists through this system.

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