Soil Erodibility Characteristics under different Land uses in Dhansiripar, Nagaland

Author: Reshinaro Tzudir, Manoj Dutta, Sewak Ram, Rizongba Kichu and Hapemo Ngullie K.

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Abstract

Inappropriate land use practices are one of the major causes of land degradation and are a concern for sustainable productivity. Evaluation of soil erodibility characteristics is very much important to adopt proper soil and water conservation practices for a particular location. The present study was conducted to determine the soil erodibility characteristics under different land uses in six different villages of Dhansiripar, Nagaland viz., Razhaphe, Dhansiripar, Doyapur, Kiyeto, Amaluma and Melongmen. The land uses were lowland paddy, field crop, orchard and forest. The textural class of the soils were fond as clay loam, loamy, clay and silty clay loam with clay loam being the most dominant. The dispersion ratio (DR) of surface and sub-surface soil varied from 12.63 to 20.50 and 11.30 to 20.70, respectively. The erosion index (EI) varied from 7.30 to 16.27 and 7.00 to 13.10 in surface and sub-surface soil, respectively. EI showed significant positive correlation with DR (r= 0.65*). The soil erodibility was high in the sampled soils of field crop land use, while the least erodibility was recorded in the forest land.

Keywords

Dispersion ratio, erodibility, erosion index, surface soil, sub-surface soil

Conclusion

The study was aimed at assessing the relationship among various land uses and erodibility characteristics of the soil. The study indicated that the soils were highly erodible in nature irrespective of depths. The soils under the agriculture land use systems more particularly field crop land use system was found to be more susceptible to erosion. While forest was least vulnerable to erosion which may be attributable to their canopy cover protecting the soil from the direct impact of raindrops. Therefore, deforestation should be immediately stopped and preventive measures against erosion should be taken in order to ameliorate the rate of soil degradation and prevent further soil loss in cultivated lands.

References

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How to cite this article

Reshinaro Tzudir, Manoj Dutta, Sewak Ram, Rizongba Kichu and Hapemo Ngullie K. (2023). Soil Erodibility Characteristics under different Land uses in Dhansiripar, Nagaland. Biological Forum – An International Journal, 15(4): 162-165.