Physico-Chemical Analysis of Mangrove Soil in the Machilipatnam Coastal Region, Krishna District, Andhra Pradesh.
Abstract: Mangrove soil condition was essential factor in mangrove reforestation and coastal rehabilitation projects. The present survey was made to study of the some physicochemical
parameters of soil at five places of Machilipatnamcoastal regions during the year 20012-2013 at four-seasonal intervals. This study was carried out using field determinationof colour and texture, and a low-cost electrochemical approach was used for pH, salinity measurements The soil properties, colour, texture, pH , salinity,electrical condititivity, organiccarbon, macronutrients(N,P)andmicronutrients(Zn,Mn,Fe,Cu,P2O) are determined in mangrove ecosystem. The results showed that soils in the mangrove forest are dark black in colour, and are made up of both clay and silt, soil pH range from(8.35 to 8.79) which are alkaline. Soil salinity range from (20 to 32 ppt) decreased with increasing distance from the tidal coast electric conductivity range from (10.26 to 16.22 .mohs/cm).Available nitrogen(29.4 to 81.2ppm),phosphorous range from(3.32 to 5.89 ppm) were maximum in monsoon and minimum in summer . The micronutrients such as zinc(0.31 to 0.64ppm), copper(0.9 to8.8 ppm) , iron (9.50 to 19.7)and manganese(17.9 to60.2 ppm) have variation in comparison to different areas
Keywords:Mangrove ecosystem, seasons,Physico-chemical parameters.
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