SOIL SERIES SURVEY OF SELECTED STUDY AREAS IN THAILAND. APPENDIX A: SOIL SURVEY OF THE NAKHON SAWAN AREA
Abstract
The soil survey of the Nakhon Sawan study area was conducted during the period April to September 1965, and covered an area of approximately 2,965 sq km (1,145 sq mi). Reconnaissance was made along all accessible roads and tracks. Soils were studied at road cuts and borrow pits and at exposures along drainage channels. Borings were made and pits were excavated, usually to a depth of 100 cm, in selected areas to study the soil profiles in greater detail. Approximately 8 to 10 observations per square kilometer were made. Detailed field data were used to map soil boundaries on air photos at scales of 1:20,000 and 1:60,000; then the soil boundaries were transferred from the air photos to series L 708 Army Map Service topographic maps at a scale of 1:50,000. Soil characteristics for those areas not examined in the field were determined by air-photo interpretation techniques.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1966
- Accession Number
- AD0807699
Entities
People
- Lek Moncharoen
- Manu Omakupt