Delineation of agroclimatic zones

Agro-climatic zones are of paramount importance for defining or delineation of agro-ecological zoning for sustainable use of land resources. The essential elements in demarcating or defining of an agro-climatic zone are bioclimates based on thermal regimes, moisture regime and biomass variability

(Fig. 5). Thermal regimes indicate to the amount of heat available for plant growth and development during the growing period. Moisture regimes represent water availability for crop production and hence they are the vital to classify the agro-climatic zones. Nine different agro-climatic zones were delineated by GIS aided integration of thermal regimes, moisture regimes and biomass map layers (Fig. 5).

Figure 5: Input layers for agro-ecological zoning
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