Agro-Ecological Zones of North-western Hot Arid Region of India

Abstract

The north-western hot arid region of India has been classified into four agro-ecological sub-regions, cleven agro-ecological zones and thirty four agro-ecological sub-zones. The sub-regions are based on physiography. rainfall and water resources (surface water through streams, canal and ground water). Within the sub-region, agro-ecological zones have been identified on the basis of land form- soil association, land use and cropping pattern. For recognition of agro-ecological sub-zones, an integrated approach involving land features; soil texture, depth and salinity; surface and ground water potential has been adopted. The sub-zones are homogeneous with respect to potentials/constraints for rainfedlirrigated agriculture and silvipasture and will require specific technology for sustainable development.