Abstraction of Soil Association Map from Priority Delination Survey by Adopting Expanded Extrapolation Techniques
2022
Shanware, P.G. | Gawande, S.P. | Saini, K.M
In India, special purpose rapid reconnaissance surveys are being carried out for priority fixation in the catchments of the Major River Valley Projects. The methodology consists of field surveys and mapping erosion intensity units. They are based on terrain condition, slope, surface cover, broad soil group and erosion conditions. In recent past, priority watersheds have been extensively surveyed in detail. Interpretation of data helped in transformation of special purpose maps into general purpose soil maps. Two watersheds covering an area of 10200 hectares of the Maleni subcatchments in Chambal R V. P. , India were selected The detailed soil map was superimposed after reduction on the priority rapid reconnaissance survey map. The eleven erosion intensity mapping units were tested for series composition and this has confirmed the presence of eleven soil series identified in the field.This study exhibited sound relationship between erosion intensity mapping units and soil series, such as: M ( B-K-H), 5 (K-S), N and N1 ( B), N2 ( B-S), N3 and N4 (K), L (P-K) Q, QI and P ( B-A-G). The soil series have been classified as Ustorthents, Ustochrepts and Chromusterts. Logistic interpretation of the detailed soil survey data for transformation of the rapid reconnaissance map into great group soil association map is discussed
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