Soil quality assessment in difference vegetation structures of Surajpur lake: An urban wetland of Upper Gangetic plain, Northern India
2016
Ansari, Nasim Ahmad | Ram, Jeet
Surajpur Lake is the prominent wetland site in National Capital Region, India known for its rich avifaunal and other aquatic biodiversity. Present study was carried out to assess the soil quality in different vegetation structures in Surajpur wetland from March 2010 to February 2013. Soil Sampling was conducted in five different vegetation habitats in the study area by applying standard sampling protocols. A total of 9 Physical and 16 chemical parameters were selected for analysis. The overall means of physical parameters of soil sample includes soil moisture content 11.17 ± 3.03 %, bulk density 1.19 ± 0.01 gm/ml, porosity 35.00 ± 5.10 %, water holding capacity 35.00 ± 3.86 %, soil organic carbon 0.09 ± 0.05 %, electrical conductivity 276.42 ± 112.83 ds/m, pH value 9.98 ± 0.42 was recorded. The means of chemical parameters of soil sample includes total Kjeldahl nitrogen 286.76 ± 42.41 mg/kg, available phosphorus 338.50 ± 32.75 mg/kg, potassium 2.85 ± 0.39 mg/kg, calcium level 10.86 ± 6 73 mg/kg, magnesium 10.56 ± 4.43 mg/kg, iron 14.90 ± 1.99 mg/kg, manganese 289.13 ± 42.89 mg/kg, zinc 4.20 ± 0.45 mg/kg, chloride 223.73 ± 62.64 mg/kg, sulphate 150.21 ± 27.99 mg/kg and silica oxide 7.97 ± 1.45 mg/kg. Boron, Copper and Molybdenum nutrients recorded less than one mg/kg in the soil sample. The viable count of bacteria recorded an overall mean of 16,56,000.00 ± 11,06,157.31 cfu/g. The results indicated that the essential mineral nutrients are widely distributed in the soil and are pollution free and also no any organic waste is coming to the site. Soil is good enough to support rich biodiversity to form a complete food web in the Surajpur wetland ecosystem.
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