Assessing Performance of Leaf Area Index in a Monitored Mountain Ecosystem on Mount Elgon-Uganda

Tonny Oyana, Ellen Kayendeke and Samuel Adu-Prah
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Tonny Oyana: Department of Preventive Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA
Ellen Kayendeke: Department of Environment Management, Makerere University, Kampala, Uganda
Samuel Adu-Prah: Department of Geography and Geology, Sam Houston State University, Hunstville, TX, USA

International Journal of Applied Geospatial Research (IJAGR), 2017, vol. 8, issue 1, 64-80

Abstract: This study investigated the performance of leaf area index (LAI) and photosynthetically active radiation (PAR) in a mountain ecosystem. The authors hypothesized that significant spatial and temporal differences exist in LAI and PAR values in the Manafwa catchment on Mt. Elgon. This was accomplished through field measurements of actual LAI and PAR values of diverse vegetation types along a ~900m altitudinal gradient (1141–2029 masl) in the catchment. In-situ measurements were obtained from 841 micro-scale study plots in 28 sampling plots using high resolution LAI sensors. The findings showed a significant positive relationship exists between elevation and observed LAI (r = 0.45, p = 0.01). A regression model further shows that elevation and curvature of the landscape slope were highly significant (p

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:igg:jagr00:v:8:y:2017:i:1:p:64-80

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