Physico-Chemical Analysis of Soil Status of Various Degraded Sites in an around Dimoria Tribal Belt of Assam, India

Soil is a very important material for plants and as well as animals and humans for their activities. It is very essential to determine the soil characteristics to know the soil quality. In the present study an attempt has been made to analyze the physico-chemical properties of soil in degraded site with special reference to control site. The soil parameters like pH, Organic Carbon (OC %), Water Holding Capacity (WHC), Soil Moisture Content (SMC), Bulk Density, Available N, P& K, Zn, Mn, Fe, Cu etc. were analyzed. The pH value showed a range of 7.0 to 6.3 in the site 1, 7.3 to 5.8 in the site 2, 5.8 to 5.2 in the site 3 and 4.6 to 4.7 in the site 4. The moisture content ranges from 12.68 % to 19.15 %, 10.51 % to 18.06 %, 1.32 % to 1.31 %, and 17.23 % to 5.39 %. The water holding capacity is highest in the site 4 and lowest in the site 3. The result of the study also shows low levels of P, K, and Organic Matter. Chemical parameters were found decreasing with increasing of soil depth. In most cases Bulk Density was high in lower subsoil in comparison with surface soil. It was found that there was a marked variation in nutrients and parameters of various samples in different selected sites.