Soil maps with a variety of scales are currently available to the public in Korea.
The following table summarizes soil survey methods at each scale and its application.
(Source: Korean Rural Development Administration, National Institute of Agricultural Science and Technology, 2007)
| - Soil survey methods at each scale and its application. |
|
| Division |
General Soil Survey |
Soil Survey |
Detailed Soil Survey |
| Scale of base map |
1:40,000 |
1:10,000-18,750 |
1:1,200-5,000 |
| Scale of soil map |
1:50,000 |
1:25,000 |
1:5,000 |
Minimum area presented
on map |
6.25 ha |
1.56ha |
10a |
Accuracy and soil
classification |
Arial Photogrammetry |
Field investigation |
Analysis of individual plots |
| Soil group and subgroup |
Soil series and mapping units |
Soil series and other mapping units, landuse |
Distance between
sampling points |
500-1,000m |
Less than 100m |
Less than 50m |
| Application |
Soil genesis and
distribution of soil group |
Agricultural advise at regional and local level |
Individual household farm management |
Central and regional
and use planning |
Regional landuse planning |
Soil management for individual plots |
| Suitability for |
Identification of major crop zone |
Choice of crop for individual plots |
|
Soil fertility management |
Identification of suitable crops |
|
Basic information for soil management |
Selection of specific land management |
|
|
| # These statistics are based on the yearbook of Agricultural Statistics (2004) |
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