Publication:
Separation and attribution of impacts of changes in land use and climate on hydrological processes

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dc.citedby6
dc.contributor.authorPolong F.en_US
dc.contributor.authorDeng K.en_US
dc.contributor.authorPham Q.B.en_US
dc.contributor.authorLinh N.T.T.en_US
dc.contributor.authorAbba S.I.en_US
dc.contributor.authorAhmed A.N.en_US
dc.contributor.authorAnh D.T.en_US
dc.contributor.authorKhedher K.M.en_US
dc.contributor.authorEl-Shafie A.en_US
dc.contributor.authorid57196370996en_US
dc.contributor.authorid57207832583en_US
dc.contributor.authorid57208495034en_US
dc.contributor.authorid57211268069en_US
dc.contributor.authorid57208942739en_US
dc.contributor.authorid57214837520en_US
dc.contributor.authorid57210116833en_US
dc.contributor.authorid57210443508en_US
dc.contributor.authorid16068189400en_US
dc.date.accessioned2024-10-14T03:19:41Z
dc.date.available2024-10-14T03:19:41Z
dc.date.issued2023
dc.description.abstractThis study aims to assess, compare, and attribute the effects due to separate and combined land use/land cover (LULC) and climate changes on hydrological processes in a tropical catchment. The Soil and Water Assessment Tool (SWAT) model is set up and calibrated for a small contributing sub-basin of the Tana River Basin (TRB) in Kenya. The model is then applied to simulate the hydrological components (i.e., streamflow (FLOW), evapotranspiration (ET), soil water (SW), and water yield (WYLD)) for different combinations of LULC and climate scenarios. Land use data generated from Land Satellite 5 Thematic Mapper (Landsat 5TM) images for two different periods (1987 and 2011) and satellite-based precipitation data from the African Rainfall Climatology version 2 (ARC2) dataset are utilized as inputs to the SWAT model. The Nash�Sutcliffe model efficiency (NSE), coefficient of determination (R2), percent bias (PBIAS), and the ratio of root mean square error to the standard deviation (RSR) for daily streamflow were 0.73, 0.76, 3.16%, and 0.51 in calibration period, respectively, and 0.45, 0.54, 12.53%, and 0.79 in validation period, respectively, suggesting that the model performed relatively good. An analysis of the LULC data for the catchment showed that there was an increase in agricultural, grassland, and forested land with a concomitant decrease in woodland and shrubland. Simulation results revealed that change in climate had a more significant effect on the simulated parameters than the change in LULC. It is shown that changes in LULC only had very minor effects in the simulated parameters. The monthly mean FLOW and WYLD decreased by 0.02% and 0.11%, respectively, while ET and SW increased by a monthly mean of 0.2% and 2.2%. Varying the catchment climate and holding the land use constant reduced FLOW, ET, SW, and WYLD by an average monthly mean of 43.2%, 21%, 13%, and 70%, respectively, indicating that climate changes have more significant effects on the catchment hydrological processes than changes in LULC. Thus, it is necessary to evaluate and identify the isolated and combined effects of LULC and climatic changes when assessing impacts on the TRB�s hydrological processes. � 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1007/s00704-022-04351-7
dc.identifier.epage1353
dc.identifier.issue3-Apr
dc.identifier.scopus2-s2.0-85146394020
dc.identifier.spage1337
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85146394020&doi=10.1007%2fs00704-022-04351-7&partnerID=40&md5=ed1fbe7abde077732e2aecd3dfdf5f8b
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/34424
dc.identifier.volume151
dc.pagecount16
dc.publisherSpringeren_US
dc.sourceScopus
dc.sourcetitleTheoretical and Applied Climatology
dc.subjectKenya
dc.subjectTana Basin
dc.subjectcatchment
dc.subjectclimate change
dc.subjectcomputer simulation
dc.subjecthydrological response
dc.subjectland use change
dc.subjectLandsat thematic mapper
dc.subjectsatellite imagery
dc.subjectstreamflow
dc.titleSeparation and attribution of impacts of changes in land use and climate on hydrological processesen_US
dc.typeArticleen_US
dspace.entity.typePublication
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