Hydrological modeling of <i>Amaravila</i> watershed in neyyar river basin using soil and water assessment tool (SWAT)

Snija, V.S.; Sherring, Arpan; Suryavanshi, Shakti

doi:10.5958/2455-7145.2018.00038.3

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“…SWAT is a semi-distributed hydrological model that can predict the impact of anthropogenic practices on hydrological processes at different scales. Application of SWAT in runoff and sediment yield modeling (Srinivasan et al 1993(Srinivasan et al , 1998(Srinivasan et al , 2010Chaplot 2005;Setegn et al 2008;Betrie et al 2011;Murty et al 2014;Suryavanshi et al 2017;Snija et al 2018) and climate change impact study (Wu and Johnston 2007;Ficklin et al 2009;Moradkhani et al 2010;Sridhar and Nayak 2010;Bae et al 2011) has drawn noteworthy recognition over the past two decades. SWAT has also been used to understand impact of LULC and climate change (Wang et al 2013;Zhang et al 2013;Kim et al 2013;EL-Khoury et al 2015;Nirula et al 2015;Yan et al 2018).…”

Section: Swat Modelmentioning

confidence: 99%

Understanding land use/land cover and climate change impacts on hydrological components of Usri watershed, India

et al. 2022

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Land use/cover (LULC) and climate are significant environmental factors that influence watershed hydrology across the globe. The present study attempts to understand the consequences of existing changing patterns of climate and LULC on the hydrology of the Usri watershed. Different water balance components were simulated using a semi-distributed Soil and Water Assessment Tool (SWAT) model. Sixteen scenarios were generated using combinations of four periods of climatic data (1974–84; 1985–1995; 1996–2006 and 2007–2016) and four sets of land use maps (1976; 1989; 2000 and 2014). The SWAT model performed well for monthly stream flows during calibration and validation. The study finds that the individual impact of LULC change contributes to increase in the streamflow and decrease in evapotranspiration (ET) primarily due to increase in urbanization and decrease in water bodies, forest cover and barren land of Usri watershed. The combined impact of climatic variations and land use change reveals complex interactions. The study provides insight into hydrological response to variations in climate and land use changes in Usri watershed in recent decades. The results of this study can be beneficial to the authorities, decision-makers, water resource engineers and planners for the best water resource management approaches in the perspective of climate change and LULC transformation of similar ecological regions as that of Usri.

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