An approach to use of aerial photos in small scale soil mapping based on experience of Jodhpur district,Rajasthan

Photocharacteristics of some of the dominant soils were already known from experience within and outside the survey area. Using these known photocharacteristics an interpretation was carried out enabling a coverage of nearly 65% of the total area of the district. Simultaneously, the remaining 35% area split into various sized patches was photo-analysed and the characteristics noted. Thereafter field traversing was taken to carry out checking of the already interpreted area and interpretation of photo-analytical units and a few uncertain areas. This method of partial interpretation-cum-analysis in the first stage itself was found fully workable for the present area. Interpretations of some of the new dominant analytical units are reported.