Impact of Climate and Land Use/Land Cover Change on the Water Resources of a Tropical Inland Valley Catchment in Uganda, East Africa

Simple item page
dc.contributor.authorNäschen, Kristian
dc.contributor.authorLeemhuis, Constanze
dc.contributor.authorVan Der Linden, Roderick
dc.contributor.authorMwanjalolo Majaliwa, Jackson-Gilbert
dc.contributor.authorObando, Joy Apiyo
dc.date.accessioned2023-07-18T09:14:23Z
dc.date.available2023-07-18T09:14:23Z
dc.date.issued2020
dc.descriptionArticleen_US
dc.description.abstractThe impact of climate and land use/land cover (LULC) change continues to threaten water resources availability for the agriculturally used inland valley wetlands and their catchments in East Africa. This study assessed climate and LULC change impacts on the hydrological processes of a tropical headwater inland valley catchment in Uganda. The hydrological model Soil and Water Assessment Tool (SWAT) was applied to analyze climate and LULC change impacts on the hydrological processes. An ensemble of six regional climate models (RCMs) from the Coordinated Regional Downscaling Experiment for two Representative Concentration Pathways (RCPs), RCP4.5 and RCP8.5, were used for climate change assessment for historical (1976–2005) and future climate (2021–2050). Four LULC scenarios defined as exploitation, total conservation, slope conservation, and protection of headwater catchment were considered. The results indicate an increase in precipitation by 7.4% and 21.8% of the annual averages in the future under RCP4.5 and RCP8.5, respectively. Future wet conditions are more pronounced in the short rainy season than in the long rainy season. Flooding intensity is likely to increase during the rainy season with low flows more pronounced in the dry season. Increases in future annual averages of water yield (29.0% and 42.7% under RCP4.5 and RCP8.5, respectively) and surface runoff (37.6% and 51.8% under RCP4.5 and RCP8.5, respectively) relative to the historical simulations are projected. LULC and climate change individually will cause changes in the inland valley hydrological processes, but more pronounced changes are expected if the drivers are combined, although LULC changes will have a dominant influence. Adoption of total conservation, slope conservation and protection of headwater catchment LULC scenarios will significantly reduce climate change impacts on water resources in the inland valley. Thus, if sustainable climate-smart management practices are adopted, the availability of water resources for human consumption and agricultural production will increase.en_US
dc.identifier.citationGabiri, G., Diekkrüger, B., Näschen, K., Leemhuis, C., van der Linden, R., Majaliwa, J. G. M., & Obando, J. A. (2020). Impact of climate and land use/land cover change on the water resources of a tropical inland valley catchment in Uganda, East Africa. Climate, 8(7), 83.en_US
dc.identifier.otherdoi:10.3390/cli8070083
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/26288
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.subjectwater resourcesen_US
dc.subjectwetland-catchment nexusen_US
dc.subjectSWAT modelen_US
dc.subjectclimate change impactsen_US
dc.subjectland use/land cover managementen_US
dc.titleImpact of Climate and Land Use/Land Cover Change on the Water Resources of a Tropical Inland Valley Catchment in Uganda, East Africaen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Impact of Climate and Land UseLand Cover Change on the Water Resources of a Tropical Inland Valley Catchment in Uganda, East Africa.pdf
Size:
4.39 MB
Format:
Adobe Portable Document Format
Description:
Full text Article
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
RP-Department of Geography