Faculty Publications
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Item Analysis of Land Use Land Cover Changes in the Netravati Basin, Karnataka, India(Springer Science and Business Media Deutschland GmbH, 2023) Nayana, N.; Jose, D.M.; Dwarakish, G.S.Analysis and mapping of land use land cover (LULC) are essential to improve our understanding of the human-nature interactions and their effects on land use changes. In this study, LULC maps of the Netravati river basin for the years 2000, 2010, and 2020 were obtained using maximum likelihood classifier on Landsat images. The classifier produced LULC maps of 2000, 2010, and 2020 with overall accuracy of 87.34%, 85.74%, and 86.3%, respectively. The results of this study showed that there is an increase in the spatial extends of the urban area (3.54–9.21%) and agriculture (18.2–21.09%) during the period 2000 to 2020. In contrast, forest (55.48–51.02%), bare soil (6.61–5.91%), water bodies (1.64–1.23%), and vegetation (14.53–11.54%) cover have decreased from the year 2000 to 2020. The results of this study can be used for proper LULC management in the basin. This study is a prerequisite for the prediction and management of future urban growth. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.Item Geospatial Techniques for Soil Erosion-Based Watershed Prioritisation: A Review(Springer Science and Business Media Deutschland GmbH, 2025) Makhdumi, W.; Suragamallika, R.; Shwetha, H.R.; Dwarakish, G.S.The degradation of the environment caused by anthropogenic has raised significant concerns about the sustainability of land, water, and energy resources. It is crucial to acknowledge the unique characteristics of each watershed and the variability in the impact of human and natural activities across regions. Soil erosion emerges as a major threat, which leads to degraded soil, reduced agricultural productivity, and water pollution. Effective watershed management is essential for preventing soil erosion and ensuring the sustainability of resources. A fundamental step in effective watershed management involves evaluating and identifying the most severely impacted sub-watersheds. This study focuses on soil erosion-based prioritisation studies in India, examining their main findings, models, and methodologies. Geospatial techniques, which include Remote Sensing (RS) and Geographic Information System (GIS), have proven effective for mapping and assessing soil erosion at different scales. These methods identify erosion-causing factors, including land use, slope, rainfall intensity, and soil characteristics. By integrating geospatial data, accurate assessments of soil erosion vulnerability can be made, supporting informed decision-making. Multi-Criteria Decision Analysis (MCDA) helps in prioritisation by evaluating multiple soil erosion criteria and assigning weights based on their relative importance. Geospatial tools facilitate comprehensive assessments of soil erosion vulnerability, aiding decision-making processes. The review offers insights for researchers to conduct reliable assessments and generate data on soil erosion. Integrating Land Use Land Cover Changes (LULCC) and socio-economic conditions in prioritisation studies is recommended. This paper can assist researchers generate reliable data on soil erosion, enabling policymakers to make informed decisions regarding adaptation and mitigation strategies. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.