Land Use/Cover Trends-Climate Variability Nexus in the Njoro River Catchment
Journal Title: International Journal of Research in Education and Social Sciences - Year 2019, Vol 2, Issue 2
Abstract
Anthropogenic activities have consequences on the land use/cover trends in the watershed and subsequently on the hydrological characteristics of rivers through intertwine of climate variability. The interplay between land use changes and climate variability are seen as contributory causes of catchment degradation in Kenya. The land use/cover changes increase impervious ground surfaces, decrease infiltration rate and increase runoff rate thereby affecting the hydrological characteristics of rivers. This study considers the interactions between climate variability and land use/cover changes in the river Njoro catchment in Kenya. The River Njoro drains into the lake Nakuru basin one of the Great Rift Valley Lakes in Kenya. The objectives of the study were: To evaluate the land-use and land cover patterns and changes in Njoro River catchment between 1996 and 2016, analyze the temperature and rainfall variations between 1996 and 2016 and compare the land use/cover changes with the variation in the rainfall and temperature. Landsat images and secondary data on water quality parameters were used in this study. The study showed that there was significant variation in rainfall and temperature trends in the Njoro river catchment and therefore the dynamics of land use/land cover in the river Njoro would be more attributed to anthropogenic activities than climate variability
Authors and Affiliations
George Ontumbi
Keywords
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