Журнал дистанционного зондирования и ГИС

Абстрактный

Spatial Variation of Soil Fertility Parameters in Flood affected High Hills of Wayanad District in Kerala

Fousiya PV, Suresh PR, Binitha NK

A study was conducted to assess the fertility status of post flood soils of Mananthavady block in Wayanad district of Kerala. Geo referenced surface soil samples from a depth of 0 to 20 cm were collected from the flood affected area and were analyzed for pH, EC, organic carbon and available macro nutrients. GIS based thematic maps of soil pH, organic carbon, N, P, and K were prepared using Arc GIS 10.3. Experimental findings revealed that soil pH ranges from extremely acidic to slightly acidic in the area and the entire area was non saline. There were decline in organic carbon content, and available K in post flood soils whereas available P showed an increasing trend after the flood. The deficiency of available nitrogen was prevalent entire study area. The results of this study demands the relooking of nutrient management practices and need of adopting soil conservation measures.