rajasthan extent degradation bhilwara wasteland degraded distribution
rajasthan erosion desertification soils soil conservation rajras wind shifting dunes sand
wastelands spatial distribution degraded status india
degradation desertification liss irs
degradation land india extent costs determinants
soil erosion soils degraded area yr tonnes maji wastelands preliminary statistics assessment degradation organizations 2008a
watershed boundary 1998 rajasthan degradation arid cio
watershed arid degradation rajasthan cio