School of Biological, Physical, Mathematics & Actuarial Sciences: Recent submissions
Now showing items 181-200 of 246
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Leaf and Ecosystem Gas Exchange Responses of Buffel Grass-Dominated Grassland to Summer Precipitation
(Elsevier, 2015)stomatal conductance -
Environmental controls on growing-season sap flow density of Quercus serrata Thunb in a temperate deciduous forest of Korea
(Ecological Society of Korea, 2012)Sap flux density (SFD) measurements were used, in combination with morphological characteristics of trees and forest structure, to calculate whole-tree transpiration, stand transpiration (St) and mean canopy stomatal ... -
Inherently delayed germination of Elgon Teak (Olea capensis) seeds in Kakamega Forest, Kenya
(Kamla-Raj, 2010)Olea capensis in Kakamega forest does not show any evidence of natural regeneration under the parent trees. This study sought to determine the factors that may be responsible for the lack of natural regeneration under the ... -
Nutritional and developmental influences on components of rice crop light use efficiency
(Elsevier, 2016)Light use efficiency (LUE) plays a vital role in determination of crop biomass and yield. Important components of LUE, i.e. canopy structure, nitrogen distribution, photosynthetic capacity and CO2 diffusion conductance ... -
Drought responses of Arrhenatherum elatius grown in plant assemblages of varying species richness
(Elsevier, 2011)Evidence exists that plant community diversity influences productivity of individual members and their resistance and resilience during and after perturbations. We simulated drought within the long-term EVENT experimental ... -
Effects of land use practices on soil organic carbon, nitrogen and phosphorus in river Nzoia drainage basin, Kenya
(Science Publishing Group, 2015-06-18)Land use activities along River Nzoia Drainage Basin, Kenya, include cultivation along the river banks, over grazing, deforestation, draining of wetlands for horticulture, harvesting of sand and brick-making. These activities ... -
Carbon dioxide exchange and its regulation in the main agro-ecosystems of Haean catchment in South Korea
(Elsevier, 2015)The Asian agricultural landscape, which accounts for approximately 12.6% of the world’s agricultural land, is highly heterogeneous due to the multicultural cropping system. Information regarding CO2 exchange and carbon (C) ... -
Impacts of selective logging on population structure and dynamics of a canopy tree (Oleacapensis) in Kakamega forest
(African journal of Ecology, 2010-08-03)This study assessed the impacts of logging on the population structure and dynamics of Elgon teak (Olea capensis), a canopy dominant in Kakamega forest. The objective was to ascertain and determine the regeneration status ... -
Sensitivity of peatland herbaceous vegetation to vapor pressure deficit influences net ecosystem CO2 exchange
(Society of Wetland Scientists, 2012)Mountain peatlands in the temperate regions represent a small proportion of the global peatland resource, but play a unique, although less recognized role in the regional water and biogeochemical cycles. We conducted leaf ... -
Stand characteristics and water use at two elevations in a sub-tropical evergreen forest in southern China
(Elsevier, 2014)The humid evergreen monsoon forests in China and other parts of Asia contribute significantly to the global and regional atmospheric circulation and hydrological cycle. The forests are, however, changing in structure due ... -
Socioeconomic factors influencing dependence of households on non-timber forest products in South Nandi Forest, Kenya
(Journal of Economics and Sustainable Development, 2018)Forests are some of the key natural assets that provide a wide range of goods and services to forest adjacent communities. However, there is inadequate information on the factors that influence community members’ level of ... -
Soil properties along a gradient from hillslopes to the savanna plains in the Lambwe valley, Kenya
(Elsevier, 2015)Changes in land use and management strongly affect the physical and chemical properties of soils and their ecological functions. Especially, regions in East Africa have experienced dramatic land use changes in the past, ... -
Functional convergence in water use of trees from different geographical regions: a meta-analysis
(Springer-Verlag Berlin Heidelberg, 2013-06)Functional convergence in water use of trees across species from diverse geographic locations was examined using data on tree water use parameters, with the intention of gaining an understanding on the capacity for water ... -
Membership in wildlife clubs of Kenya and its influence on beliefs about wildlife
(Taylor & Francis, 2008-05-16) -
Persistence and loss of cultural values of Tiriki Sacred Groves in Hamisi District, Kenya: Implications for management (RH: cultural values of Tiriki Sacred Groves)
(Taylor & Francis Online, 2017-10-24)Negligence and desecration observed among Tiriki sacred groves during causal visits by the authors in January 2007 was associated with their loss of cultural values and protection among local people. Household interviews ... -
Changes in forest soil properties in different successional stages in lower tropical China
(Plosone.org, 2013)Background: Natural forest succession often affects soil physical and chemical properties. Selected physical and chemical soil properties were studied in an old-growth forest across a forest successional series in Dinghushan ... -
Canopy scale CO2 exchange and productivity of transplanted paddy and direct seeded rainfed rice production systems in S. Korea
(Elsevier, 2016)Rice (Oryza sativa L.) is a primary food crop that supports more than half the world population. Paddy rice accounts for more than 75% of the total global rice production but requires large amounts of water for irrigation. ... -
Effects of nitrogen deposition on soil organic carbon fractions in the subtropical forest ecosystems of S China
(2012)Experiments were conducted between 2003 and 2008 to examine how N additions influence soil organic C (SOC) and its fractions in forests at different succession stages in the subtropical China. The succession stages included ... -
Diffuse PAR irradiance under clear skies in complex alpine terrain
(Elsevier, 2004)The diffuse component of photosynthetically active radiation (PAR) is important for models that calculate carbon dioxide uptake in photosynthesis by vegetation. Few PAR measurements are usually available, especially in ... -
Manipulative lowering of the water table during summer does not affect CO2 emissions and uptake in a fen in Germany
(Ecological Society of America, 2011)We simulated the effect of prolonged dry summer periods by lowering the water table on three manipulation plots (D1–3) in a minerotrophic fen in southeastern Germany in three years (2006–2008). The water table at this site ...