Physico-chemical properties of riparian soil along the three zones of the Dikhu River, Nagaland, north-east India
Devlin Leishangthem, MR Singh
Various physico-chemical properties of the riparian soil were studied along the upper, middle and lower zones of the Dikhu river, Nagaland from three layers of soil at 0-10 cm, 10-20 cm and 20-30 cm depth. Maximum of clay content, SOC, total nitrogen and phosphorus were recorded at middle zone and minimum of all these parameters were recorded at lower zone of the riparian forest. There showed a significant positive correlation between SOC with soil moisture content, soil bulk density, silt content and total nitrogen. Whereas, negative correlations was exhibited between soil organic Carbon with soil temperature, soil porosity, clay, sand, soil pH, Phosphorous and Potassium. One way ANOVA test exhibited significant variations in soil properties between zones and parameters such as soil moisture, sand, silt and clay content, bulk density, organic matter, total nitrogen and potassium varies significantly with increasing soil depth.The study emphasized the need for protection of riparian zones, proper land use planning and adoption of sustainable farming systems within the riparian zone to prevent from further deterioration of the riparian soil.