SOIL SERIES SURVEY OF SELECTED STUDY AREAS IN THAILAND APPENDIX B: SOIL SURVEY OF THE LOP BURI AREA.
Rept. for Mar-Jul 65,
LAND DEVELOPMENT DEPT BANGKOK (THAILAND) SOIL SURVEY DIV
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The soil survey of the Lop Buri study area was conducted during the period March 1965 to July 1965, and covered an area of approximately 3,802 sq km 1,468 sq mi. Reconnaissance was made along all accessible roads and trails. Soils were studied at road cuts and at exposures along drainage channels. In areas of good accessibility, borings and profile pits were made in order to study the soil in greater detail. An average of about 12 observations per square kilometer was recorded. Detailed field data were mapped on air photos at scales of 115,000 and 140,000, then transferred from the air photos to Series L708, Army Map Service topographic maps at a scale of 150,000.
- Soil Mechanics