Assessment of soil erosion in sub tropical ecosystem of Meghalaya, India using remote sensing, GIS and RUSLE
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Title |
Assessment of soil erosion in sub tropical ecosystem of Meghalaya, India using remote sensing, GIS and RUSLE
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Creator |
Jena, R.K., Padua, S., Ray, P., Ramachandran, S., Bandyopadhyay, S., Deb Roy, P., Obi Reddy, G.P., Singh, S.K. and Ray, S.K
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Subject |
Geo-spatial technique, Geo-statistics, Hydrology, Spatial assessment, Soil erosion
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Description |
Not Available
Erosion is one of the major threats to the soils that limits its productive capacity. Soil erosion in Jirang block, Ri-Bhoi district of Meghalaya under sub tropical eco-system was assessed using revised universal soil loss equation (RUSLE) in geographic information system (GIS). In the study, IRS P6 LISS IV data of the study area was used to prepare land use/land cover (LU/LC) map by visual interpretation technique and digital elevation model (DEM) was generated from Cartosat-1 data, which was further used to develop slope, contour, flow direction and flow accumulation maps. Thematic raster layers of RUSLE factors (R, K, LS, C and P) were computed and used to estimate average annual soil loss in GIS (ArcGIS 10.0). The results showed that about 30% area is -1 -1 -1 -1 subject to severe (20.1-40.0 t ha yr ) to extremely severe (>80.0 t ha yr ). Based on the severity of soil erosion in the block, Umkadhar, Mokirson, Mauling and Dagiya Parbat villages have been categorized under high priority zone with -1 -1 -1 -1 severe (20.1-40.0 t ha yr ) to extremely severe (>80.0 t ha yr ). The soil erosion st nd was found to be higher near to the 1 and 2 order streams where soil conservation measures are imminent. The study demonstrated that use of geospatial technologies in combination with RUSLE is a comprehensive approach for spatial assessment of soil erosion for better resource planning. Not Available |
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Date |
2019-11-02T04:47:40Z
2019-11-02T04:47:40Z 2018-12 |
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Type |
Article
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Identifier |
Jena, R.K., Padua, S., Ray, P., Ramachandran, S., Bandyopadhyay, S., Deb Roy, P., Obi Reddy, G.P., Singh, S.K. and Ray, S.K. 2018. Assessment of soil erosion in sub-tropical ecosystem of Meghalaya, India using remote sensing, GIS and RUSLE. Indian Journal of Soil Conservation, 46(3):273-282.
Print ISSN: 0970-3349 Online ISSN: 0976-1721 http://krishi.icar.gov.in/jspui/handle/123456789/24272 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Indian Associations of Soil & Water Conservationists
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