Preparation of Soil Map Using Remote Sensing and GIS Technology

Abstract

For efficient utilization of soil and water resources, reconnaissance survey of watershed Godavari valley-5 (GV-5) was carried out in Nashik Soil Survey unit No. 2 for providing comprehensive information characteristics. Representative soil samples from each of eight villages of the sub-catchments of Gangapur were collected. From the record of the area sampled, a sample sketch map for reference was made with the help of magnetic needle. Simultaneously, GPS data was recorded for transferring these points on map/satellite image. The soil samples were tested in laboratory for determining various soil properties viz. soil color, mechanical analysis, liquid limit, plastic limit, soil ph, soil electrical conductivity, soil organic carbon, available nitrogen, available phosphorus, available potassium & soil calcium content. Vector map was prepared from revenue boundary of village under the guidance of MERI, Nashik. From the results obtained from the analysis of vector map, a soil map & land use land cover map was prepared using ERDAS Imagine 8.7 software.

Za efikasnu upotrebu zemljišnih i vodenih resursa izvedeno je prethodno ispitivanje rečnog sliva Godavari doline-5 (GV-5) u Nashik pregledu zemljišta, čime su dobijene opsežne informacije o karakteristikama. Sakupljeni su reprezentativni uzorci zemljišta iz svakog od osam sela područja Gangapur. Iz podataka o uzorkovanoj oblasti napravljena je referentna mapa uzoraka. Istovremeno, GPS podaci su memorisani radi transfera ovih tačaka na mapu/satelitski snimak. Uzorci zemljišta su testirani u laboratoriji radi određivanja različitih zemljišnih karakteristika: boja, mehanička analiza, granična lažnost, granična plastičnost, kiselost, elektroprovodljivost, organski ugljenik, dostupni azot, dostupni fosfor, dostupni kalijum i sadržaj kalcijuma. Napravljena je vektorska mapa na osnovu katastarskih granica sela pod vođstvom MERI, Nashik. Analiza vektorske mape, zemljišne mape i mape upotrebe i pokrivenosti zemljišta izvedena je upotrebom programa ERDAS Imagine 8.7.