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Impact of Alien Invasive Species on Soil Physiochemical Characteristics in Tropical Sal Forest, Uttarakhand, India

Mamta Bharti1, Lalit Tewari1, Ashish Tewari2 and Neeta Joshi3

1. Department of Botany D.S.B. Campus, Kumaun University, Nainital, India

2. Department of Forestry and Environmental Science, D.S.B. Campus, Kumaun University, Nainital, India

3. Department of Chemistry, MBGPG College, Haldwani, India


Abstract: Invasive species are those that occur outside their natural range, spread rapidly and cause harm to other species, communities or entire ecosystem and to human well-being. Soil samples were collected from Mangoli forest which is highly infested/ invaded area with Eupatorium and a comparatively lest invaded area along with the forest in Nainital district, Uttarakhand. Soil were drawn from different depths viz.0-10, 11-30, 31-60 cm. Physiochemical analysis comprises soil texture (Sand 27.7%, Silt 23.36% and Clay 62.86%), Soil moisture (5.82%), Water holding capacity (54.8%), Bulk density (1.47 g cm-3), porosity (47.87%). A comparative study shows the Total percentage of the Chemical/Nutrient values were high in highly invaded area as compared to the least invaded forest site Ph (7.20-6.70), C (1.37-0.97 %), N (0.28-0.25Kg/h), P (0.0098-0.0078 %), K (0.0109-0.0094 %).

Key words: Invasive species, Eupatorium conizoides, Shorea robusta, soil physic-chemical properties.
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