Semi-detailed soil survey was conducted at the Keochia Silvicultural Research Station, Chittagong, using enlarged aerial photographs (1 : 5000). Ground checking was made by means of traverses planned across the geomorphological pattern of the area at an interval of approximately 200 meters (656 ft). Laboratory analyses were carried out on the soil samples.

The object of this study was to identify the genetic relationship amongst the soil series, describe and characterise them properly and delineate on a soil association map. Seven soil associations and five soil series were identified in the studied area.

The coarse texture, the low organic matter content and the low available nutrients of the soils suggest that plant growth on these soils is probably slow which may further deteriorate due to erosion if the soils are allowed to remain exposed.