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Modelling of Streamflow Considering the Effects of Land Use Land Cover Change Over the Sabari River Basin, India
Land Use Land Cover (LULC) significantly affects hydrological variables like streamflow. This chapter studies the effects of change in LULC over streamflow in the Sabari Basin, India. The LULC change detection analysis has been carried out for three decades (1985–1995, 1995–2005, 2005–2020). The LULC classes (Barren land, Built-up Area, Cropland, Fallow land, Forest, Grassland, Plantations, Shrubland, Wasteland, and Waterbodies) are analyzed. The change for individual classes and converted area analysis from one class to another is also conducted. By the end of 2005, the built-up area, cropland, and shrubland were increasing by 12.1%, 0.43%, and 3.25%, respectively, when compared to 1985, and the remaining classes were decreasing by each decade. Monthly streamflow is modeled for 30 years (1982–2012) using the Soil and Water Assessment Tool (SWAT). Two Sub-basins (Saradaput and Konta) are considered for the analysis. The R2 between the modeled and the observed data in the Saradaput and Konta Sub-basins is 0.78 and 0.74, respectively. The results indicate that urbanization and agricultural intensification have contributed to increased streamflow. These LULC change detection can be further used in modeling this basin using different hydrological models to compare the performance of the different models in this basin.
Modelling of Streamflow Considering the Effects of Land Use Land Cover Change Over the Sabari River Basin, India
Land Use Land Cover (LULC) significantly affects hydrological variables like streamflow. This chapter studies the effects of change in LULC over streamflow in the Sabari Basin, India. The LULC change detection analysis has been carried out for three decades (1985–1995, 1995–2005, 2005–2020). The LULC classes (Barren land, Built-up Area, Cropland, Fallow land, Forest, Grassland, Plantations, Shrubland, Wasteland, and Waterbodies) are analyzed. The change for individual classes and converted area analysis from one class to another is also conducted. By the end of 2005, the built-up area, cropland, and shrubland were increasing by 12.1%, 0.43%, and 3.25%, respectively, when compared to 1985, and the remaining classes were decreasing by each decade. Monthly streamflow is modeled for 30 years (1982–2012) using the Soil and Water Assessment Tool (SWAT). Two Sub-basins (Saradaput and Konta) are considered for the analysis. The R2 between the modeled and the observed data in the Saradaput and Konta Sub-basins is 0.78 and 0.74, respectively. The results indicate that urbanization and agricultural intensification have contributed to increased streamflow. These LULC change detection can be further used in modeling this basin using different hydrological models to compare the performance of the different models in this basin.
Modelling of Streamflow Considering the Effects of Land Use Land Cover Change Over the Sabari River Basin, India
Lecture Notes in Civil Engineering
Dutta, Subashisa (editor) / Chembolu, Vinay (editor) / Pichuka, Subbarao (author) / Syam, Nandikanti Siva Sai (author)
International Conference on River Corridor Research and Management ; 2022
2023-08-18
13 pages
Article/Chapter (Book)
Electronic Resource
English
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