Dr. D. C. Joshi,  (ex) Principal Scientist (Pedology), Natural Resources and Environment Division, ICAR-Central Arid Zone Research Institute, Jodhpur, has over 35 years experience of using aerial photographs, satellite images and GIS for soil resources appraisal, kind and intensity of land degradation, desertification status and wastelands mapping.  He has significantly contributed in research projects viz. spectral reflectance characteristic of sandy and salt affected soils of arid region, soil characterization and investigating their chemistry, amelioration of soils degraded due to brackish water irrigation and their management. He was Principal Investigator of the Indo-Hungarian Intergovernmental collaborative remote sensing based project “Mapping of salt affected soils and management of soils irrigated with saline/ high RSC water (carbonate) water (1999- 2002)”. He has efficiently and successfully coordinated World Bank aided NATP projects in arid Agro-ecosystem.  After superannuation from ICAR-CAZRI, Jodhpur, during the years 2004 to 2011, he worked as consultant at the State Remote Sensing Application Centre (SRSAC), Jodhpur, for “Soil resource mapping under NRIS (National (Natural) Resources information System), Project” of Department of Space, Govt. of India. This culminated in the digitization of soil series/ association map of the entire Rajasthan State at 1: 50, 000 scale.  District wise Soil and land capability maps have been published as “Soil Resource Atlas: Rajasthan State”.