Browsing School of Agricultural, Earth and Environmental Sciences by Title
Now showing items 1558-1577 of 2010
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The radiation balance of Midmar Dam in KwaZulu-Natal, South Africa.
(2016)Abstract available in PDF file. -
Rainwater harvesting systems and their influences on field scale soil hydraulic properties, water fluxes and crop production.
(2009)South Africa, in common with many parts of Sub-Saharan Africa, is facing increasing water shortages. Limited available water arising from a low and poorly distributed rainfall, must supply domestic, agricultural, industrial ... -
Rainy season characteristics with reference to maize production for the Luvuvhu river catchment, Limpopo Province, South Africa.
(2017)In arid and semi-arid regions, crop yields are mainly dependent on the amount and spatio-temporal distribution of rainfall. For most smallholder farmers in rural areas of southern Africa, rainfall is a critical input to ... -
Rangeland degradation assessment using remote sensing and vegetation species.
(2011)The degradation of rangeland grass is currently one of the most serious environmental problems in South Africa. Increaser and decreaser grass species have been used as indicators to evaluate rangeland condition. Therefore, ... -
Rapid biomax thermophilic composting effects on quality, nutrient release and fertiliser value of chicken litter composts.
(2016)Large accumulation of organic waste produced from intensive animal production systems pose challenges for disposal and direct land application of these materials adversely affect the environment. Composting aids to reduce ... -
Rapid means of screening for resistance to pests in a sugarcane plant breeding selection programme.
(2014)Chilo partellus (Lepidoptera: Crambidae) and Chilo sacchariphagus (Lepidoptera: Crambidae) are two stem borers which pose a threat to the South African sugar industry at present. The reliable supply of good quality insects ... -
Rates and controls of footpath erosion in Giant's Castle Game Reserve, KwaZulu / Natal Drakensberg.
(1995)The Drakensberg is an important ecological and recreational resource area within southern Africa, yet little knowledge exists concerning the factors controlling soil erosion in the region. The two most important anthropogenic ... -
Re-demarcation process in South Africa : a rural perspective : a case- sudy of the Ntuli tribal authority in KwaZulu Natal.
(2002)The aim of the study is to examine the perceptions of rural people towards the demarcation issue in KwaZulu-Natal. The debate on land and land ownership and control has existed since Africa's invasion by colonists. A ... -
Rebranding of the Greater St Lucia Wetlands Park in South Africa : reflections on benefits and challenges for the former of St Lucia.
(Kamla-Raj Enterprises., 2013)Post-apartheid South Africa has witnessed an explosion of both national and international ecotourism given its many years of restrictions on the movement of people in the past. Much of its biodiversity has been commodified ... -
The recent shifts in tourism in iSimangaliso Wetland Park.
(2013)Tourism is the fastest growing economic industry and has become one of the leading sources of growth and development in South Africa. However, tourism is in a constant state of flux requiring continuous research to ... -
Recovery dynamics of zooplankton following a mouth-breaching event in the temporarily-open Mdloti Estuary.
(2010)A high proportion of South Africa’s temporarily open/closed estuaries (TOCEs) occur along the coast of KwaZulu-Natal. Mouth breaching events have major impacts on the biological processes of an estuary, resulting in ... -
The recovery of an afromontane forest after slash and burn : a case study from the Nkandla forest.
(2000)Clear cutting and subsequent agricultural processes lead not only to species loss, but also have negative consequences for soil and water conservation. This study investigated the response to, and effect of, deforestation ... -
Recreational scuba diving and reef conservation in southern Mozambique.
(2003)Recreational SCUBA diving has grown tremendously along most of the southern Mozambican coastline in the last eight years. This growth was not accompanied with management actions, largely due to a lack of baseline information ... -
Recurrent selection for drought tolerance in Maize (Zea mays L. and study of heterotic patterns of maize populations from Eastern Kenya.
(2007)There are few maize varieties that are drought tolerant in semi-arid eastern Kenya and farmer perceptions of drought tolerant maize cultivars have not been studied in this region. Farmers in this region use maize landraces ... -
Recurrent selection for gray leaf spot (GLS) and phaeosphaeria leaf spot (PLS) resistance in four maize populations and heterotic classification of maize germplasm from western Kenya.
(2007)Maize (Zea mays L.) production is constrained by a number of stresses, amongst the most important are gray leaf spot (GLS) caused by a fungus Cercospora zeaemaydis Tehon and E.Y. Daniels and Phaeosphaeria leaf spot (PLS) ... -
Refinement of modelling tools to assess potential agrohydrological impacts of climate change in southern Africa.
(2001)Changes in climate due to anthropogenic influences are expected to affect both hydrological and agricultural systems in southern Africa. Studies on the potential impacts of climate change on agrohydrological systems had ... -
Refining prediction accuracy for pest blackfly outbreaks using Bayesian networks, Orange River, Northern Cape, South Africa.
(2018)Construction of dams, impoundments and Inter-Basin Transfer schemes (IBTs) along the Orange River are aimed to provide useable water for multiple sectors. However, operation of these water schemes had led to changes in ... -
Reforestation effects of a former sugarcane land on soil fauna invertebrate community and enzyme activity.
(2017)Abstract available in PDF file. -
Reforestation effects on soil carbon sequestration and greenhouse gas fluxes from a former sugarcane plantation in buffelsdraai reforestation site, South Africa.
(2017)Abstract available in PDF file.