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Principal Causes of Soil Erosion in a Watershed from the Ganga Basin, India: Evidence from Land Use Land Cover Dynamics
Soil degradation is the primary issue faced by some of the countries including India. The main reason behind this problem is the soil erosion. So the primary objectives of this paper were to assess the potential impact of Land use land cover (LULC) dynamics and other principal causes of soil erosion on sediment yield. The evaluation of the impact of LULC dynamics was done with three scenarios (LULC of 2004 with climate data of 1995–2004, LULC of 2015 with climate data of 2005–2015, LULC of 2004 with climate data of 2005–2015). The soil and water assessment tool (SWAT) was used for all three scenarios to estimate the sediment yield. The calibration and validation of the SWAT model were done using the Sufi-2 algorithm. Multivariate linear regression technique was used to find out most dominating causes accountable for soil erosion. This study shows that due to the transition of Agriculture and Forest land to urban land and range land the average annual runoff is increased by 13% whereas the sediment yield is decreased by 26%. As the result of regression technique, we estimated that the coefficients of the variables for slope >40, Barren land type, agriculture land type and Soil type 3 (having Hydrological soil group C, with sandy Clay texture, and percentage of sand is dominant in this soil type) are the highest with values 2.95, 0.49, 0.25, and 0.13 respectively, which concludes that the slope is the dominant cause of soil erosion. Barren land and agricultural land are the most soil erosion prone LULC classes. Moreover, among the soil classes, soil type 3 was dominant causes of soil erosion. The R coefficient of the techniques was equal to 0.93 which shows the efficiency of the result. These results can be further utilized in land use planning and for applying effective measures for soil conservation.
Principal Causes of Soil Erosion in a Watershed from the Ganga Basin, India: Evidence from Land Use Land Cover Dynamics
Soil degradation is the primary issue faced by some of the countries including India. The main reason behind this problem is the soil erosion. So the primary objectives of this paper were to assess the potential impact of Land use land cover (LULC) dynamics and other principal causes of soil erosion on sediment yield. The evaluation of the impact of LULC dynamics was done with three scenarios (LULC of 2004 with climate data of 1995–2004, LULC of 2015 with climate data of 2005–2015, LULC of 2004 with climate data of 2005–2015). The soil and water assessment tool (SWAT) was used for all three scenarios to estimate the sediment yield. The calibration and validation of the SWAT model were done using the Sufi-2 algorithm. Multivariate linear regression technique was used to find out most dominating causes accountable for soil erosion. This study shows that due to the transition of Agriculture and Forest land to urban land and range land the average annual runoff is increased by 13% whereas the sediment yield is decreased by 26%. As the result of regression technique, we estimated that the coefficients of the variables for slope >40, Barren land type, agriculture land type and Soil type 3 (having Hydrological soil group C, with sandy Clay texture, and percentage of sand is dominant in this soil type) are the highest with values 2.95, 0.49, 0.25, and 0.13 respectively, which concludes that the slope is the dominant cause of soil erosion. Barren land and agricultural land are the most soil erosion prone LULC classes. Moreover, among the soil classes, soil type 3 was dominant causes of soil erosion. The R coefficient of the techniques was equal to 0.93 which shows the efficiency of the result. These results can be further utilized in land use planning and for applying effective measures for soil conservation.
Principal Causes of Soil Erosion in a Watershed from the Ganga Basin, India: Evidence from Land Use Land Cover Dynamics
Lecture Notes in Civil Engineering
Pathak, Krishna Kant (editor) / Bandara, J. M. S. J. (editor) / Agrawal, Ramakant (editor) / Mitra, Nikita Shivhare (author) / Nath, Akansha Rupal (author) / Pachori, Khushboo (author) / Dwivedi, Shyam Bihari (author) / Dikshit, Prabhat Kumar Singh (author)
International Conference on Recent Advances in Civil Engineering ; 2022
2023-10-03
21 pages
Article/Chapter (Book)
Electronic Resource
English
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