Journal ID : AMA-17-05-2022-11381
[This article belongs to Volume - 53, Issue - 05]
Total View : 392

Title : Spatial Distribution of Soil Physico-Chemical properties of North Western Himalayan Region of Jammu and Kashmir, (India) Using Inverse Distance Weighted (IDW) Interpolation Technique in GIS Environment

Abstract :

Soil surveying and soil mapping is a significant operation, since it plays a significant role in the knowledge about soil properties. The selection of a spatial IDW interpolation technique will impact the quality of site-specific soil fertility maps. This study was carried out in order to thematically map out some soil physico chemical characteristics in the north western Himalayan region of Jammu and Kashmir, India. Some physical and chemical properties of the soil were determined to evaluate the current situation of the Khag micro-watershed of Kashmir valley, since no similar study had been conducted in the area to evaluate the soil status. Traditionally, soil property values are acquired either from thematic soil maps or from geostatistical approaches and IDW technique using exact laboratory measurements. Both data types convey considerable information: thematic soil maps through IDW interpolation technique provide comprehensive but vague information; while as laboratory analyses provide exact but scarce measurements. Ideally, they should be combined with the help of GIS. The use of the geographic information systems (GIS) and sampling broad analysis through the use of global positioning system (GPS) is found to be a very effectual tool. The objective of this investigation is to conduct a soil survey in a new developing area using a non-traditional technique. Geo-spatial technology was used in this study to present the laboratory results of the soil analysis; as such, this was accomplished through preparation of thematic maps for soil properties. In order to assess and investigate soil properties of study area, a total of fourty four (44) composite surface soil samples were taken and examined and analyzed for physicochemical properties. The surface soils of upper zone (higher altitude) soils were coarser due to removal of finer fractions. The pH of the soils were slightly acidic to neutral, electrical conductivity was within normal range. The soils were found medium to high in organic carbon, the surface soils varied in texture from loam, silty loam, sandy clay loam and silty clay loam to clay loam.

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