Soils

Forty-six soil mapping unit along with their characteristics such as depth, texture, slope, erosion status, and drainage condition for the study area were obtained from soil map (1:250000 scale) prepared by National Bureau of Soil Survey and Land Use Planning, India. These spatial and non spatial data on soils were converted into digital soil resource databases for AEZ. In general terms, coarse loamy and skeletal soils are in side slope and top of Lesser Himalayas and piedmont plain while fine textured soils mainly found in alluvial plain and fluvial valleys. The soils are mostly moderately deep to deep, however, approximately 25 % of the area having shallow soils were mainly found in Lesser Himalayas and piedmont plain (Fig. 4).

Figure 4: Characteristics of agro-edaphic and agro-climatic zones

All the land resource databases and characteristics (Fig. 1) described above as layer or combination of layers of spatial information were integrated or overlaid to derive different unique agro-ecological cells. These agro-ecological cells were further aggregated to arrive at agro-ecological zones and sub zones based on their potential to support agriculture and vegetation patterns.

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