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Integrated Assessment of Soil Erosion Risk Using RUSLE, GIS and RS, in a Sub-Watershed of Lower Northern Region, Thailand |
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| รหัสดีโอไอ | |
| Creator | Banchongsak Faksomboon |
| Title | Integrated Assessment of Soil Erosion Risk Using RUSLE, GIS and RS, in a Sub-Watershed of Lower Northern Region, Thailand |
| Contributor | Banchongsak Faksomboon, Tada Promtup |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2569 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 19 |
| Journal No. | 1 |
| Page no. | 202-220 |
| Keyword | Soil Erosion, RUSLE Model, GIS, RS, Watershed Management, Sustainable Land Management |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1716 |
| Abstract | This study presents a spatially explicit assessment of soil erosion in the Sub-Watershed of Lower Northern Region (SWLNR), Thailand, to support sustainable land management and soil conservation strategies. The Revised Universal Soil Loss Equation (RUSLE) were integrated with Geographic Information System (GIS), Remote Sensing (RS) and Landsat 8 data to quantify key controlling parameters, including Rainfall erosivity (R), Soil erodibility (K), Slope length and steepness (LS), Crop management (C), and Support practices (P). Results showed considerable spatial variability, with annual potential soil loss ranging from 0-478.58 t/ha/yr. High and extreme risk zones accounted for 15.35% and 4.51% of the watershed, respectively, predominantly in areas undergoing rapid agricultural expansion. These findings indicate substantial threats to landscape stability and agricultural resilience, emphasizing the need for targeted conservation measures and sustainable land use interventions. The spatial concentration of erosion hotspots in rural farming zones suggests that continued land degradation may increase production costs and heighten economic vulnerability for smallholder communities. By providing a robust scientific baseline for erosion risk prioritization, this study directly supports the United Nations Sustainable Development Goals, SDG 1 (No Poverty), SDG 2 (Zero Hunger), and SDG 15 (Life on Land) highlighting the critical role of soil health in ensuring long term food security and watershed sustainability. |
