A study examined the dynamics of soil physical and chemical properties under different land use systems in parts of Chambal region of Rajasthan. Soils were sampled at surface (0-15cm) layer under (i) irrigated sorghum/soybean-wheat rotation for over 20 years, (ii) ten-years-old Leucaena leucocephala plantation, (iii) grasslands for >15 years with dominant spp of Hetropogan contortus and Dichanthium annulatum, (iv) over 20-years-old undisturbed forest of Prosospis juliflora and shrubs and (v) twelveyears-old Acacia senegal plantation.