Rangeland Ecology & Management
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- Library Collection RecordChanging climate adds a very significant dimension to the complex problem of ensuring that agriculture worldwide can feed the burgeoning human population. Ensuring food security must reduce…Publication Date 2009
- climate change
- plant production
- southern Africa
- Library Collection RecordAn overview of ecological models of grasslands and their research questions is presented. For the purpose of this article, models are regarded as a simplified and formalized representation of…Publication Date 2008
- competition
- disturbance
- Ecosystem modeling
- Grassland dynamics
- grazing
- Optimal life-history strategies
- primary production
- Remote sensing data
- Spatially explicit models
- succession
- modelling
- ecosystem ecology
- community
- vegetation dynamics
- plant production
- southern Africa
- Library Collection RecordSummary The growth of agricultural production worldwide has led to an increasing role of agro-ecosystems within the global carbon cycle. Arable land in the world covers about one-tenth of the 134…Publication Date 2001
- plant production
- carbon dioxide
- animal nutrition
- animal production
- southern Africa
- Library Collection RecordSummary The savanna biome is diverse, including formations ranging from almost treeless grasslands to more or less closed-canopy woodlands with considerable variation in plant composition, biomass,…Publication Date 2001
- savanna
- animal production
- plant production
- plant community ecology
- land use
- degradation
- agriculture
- ecology
- southern Africa
- Library Collection RecordThe world population has increased from 2–10 million at the dawn of settled agriculture about 10–12 millennium ago to 6.5 billion in 2006, and may stabilize at 10–12 billion by 2100. Most of…Publication Date 2007
- socio-economic aspects
- agriculture
- pastoralism
- soils
- management
- plant production
- animal production
- southern Africa
- Library Collection RecordPublished studies relating erosion and productivity have been generally based on information derived from expert opinion on the extent and severity of soil erosion and on limited data on its impact…Publication Date 2003
- soil erosion
- plant production
- management
- southern Africa
- Library Collection RecordThe use of fire in the management of grassland is a common rangeland practice in South Africa. This portends ecological implication for the sustainability of the savannah rangelands as a system. A…Publication Date 2008
- fire ecology
- management
- savanna
- grasslands
- rangelands
- Soil Condition
- plant production
- Africa
- Library Collection RecordTransformation of indigenous vegetation for production purposes impacts negatively on biodiversity but does this necessarily equate with a decrease in phytomass accumulation, which may influence…Publication Date 2008
- grasslands
- plant production
- carbon sequestration
- land use
- management
- conservation
- agriculture
- pasture management
- biodiversity
- Africa
- Library Collection RecordThe relationship between above and belowground species composition has been researched in forests, grasslands, and wetlands to understand what mechanisms control community composition. I thoroughly…Publication Date 2007
- grasslands
- plant community ecology
- plant production
- plant autecology
- species richness
- seed banks
- management
- Africa
- Library Collection RecordFlood depth has been frequently used to explain the distribution of plant species in seasonally flooded grasslands, but its relation with vegetation production has remained ambiguous. The…Publication Date 2007
- grasslands
- plant production
- hydrology
- plant autecology
- Africa
- Library Collection RecordResidues of arbuscular mycorrhizal fungi (AMF) may be important for agroecosystem functioning due to their ability to promote soil aggregation, especially in coarse textured soils with little biomass…Publication Date 2007
- soil organic matter
- Glomalin
- arbuscular mycorrhizal fungi
- Biomarker
- Arable land use
- savanna
- soils
- ecosystem ecology
- plant production
- Africa
- Library Collection RecordThis paper evaluated the capacity of SPOT VEGETATION time-series to monitor the vegetation biomass and water content in order to improve fire risk assessment in the savanna ecosystem of Kruger…Publication Date 2006
- biomass
- Fire risk assessment
- SPOT VEGETATION
- time-series
- Vegetation water content
- fire ecology
- savanna
- vegetation dynamics
- monitoring
- plant production
- national parks
- remote sensing
- Africa
- Library Collection RecordThe tree-grass interactions of African savannas are mainly determined by varying rainfall patterns and soil fertility. Large savanna trees are known to modify soil nutrient conditions, but whether…Publication Date 2007
- canopy
- Fibre content
- Grass structure
- grazing
- nitrogen
- phosphorus
- savanna
- rainfall
- soil fertility
- plant production
- nutrition
- soil organic carbon
- biomass
- forage quality
- Africa
- Library Collection RecordDespite the ubiquity of sub-tropical savannas throughout the earth, limitations of savanna productivity are understudied relative to other terrestrial systems. The limitations of savanna productivity…Publication Date 2008
- grass
- nitrogen
- phosphorus
- savanna
- rainfall
- soil nutrients
- plant production
- plant autecology
- Africa
- Library Collection RecordClimate change factors interact to modify plant growth and development. The objective of this study was to evaluate the response to temperature of big bluestem (Andropogon gerardii Vitman)…Publication Date 2007
- big bluestem
- biomass
- development
- Growth Rates
- Partitioning
- Seed number
- climate change
- temperature
- plant autecology
- plant production
- carbon dioxide
- Africa
- Library Collection RecordPrecision agriculture (PA) is an innovative, int+O101egrated and internationally standardized approach aiming to increase the efficiency of resource use and to reduce the uncertainty of decisions…Publication Date 2008
- precision agriculture
- grassland
- Perspectives
- Constraints
- interdisciplinary research
- grasslands
- remote sensing
- plant production
- Economic Aspects
- agriculture
- decision support systems
- management
- Africa
- Library Collection RecordA payments for ecosystem services (PES) system came about in South Africa with the establishment of the government-funded Working for Water (WfW) programme that clears mountain catchments and…Publication Date 2008
- Working for Water
- Payment mechanisms
- ecosystem services
- water supply
- Poverty relief
- Poverty
- Alien invasive species
- fire
- plant production
- biodiversity
- hydrology
- vegetation dynamics
- Economic Aspects
- Africa
- Library Collection RecordWater erosion creates negative impacts on agricultural production, infrastructure, and water quality across the world. Regional-scale water erosion assessment is important, but limited by data…Publication Date 2006
- Review
- land degradation
- soil erosion
- remote sensing
- modelling
- Validation
- degradation
- agriculture
- plant production
- animal production
- satellite imagery
- monitoring
- Africa
- Library Collection RecordSoluble organic N and C were extracted from soils under long-term kikuyu grass pasture, annual ryegrass pasture and annual maize production using water, 0.5 M K2SO4 and 2 M KCl. Quantities…Publication Date 2006
- Arable
- grassland
- nitrate leaching
- nitrogen loss
- Soluble organic matter
- land use
- pasture management
- plant production
- soil fertility
- Africa
- Library Collection RecordThis series of two papers describes a mechanistic model that simulates within years the productivity of vegetation and livestock on the communal semi-arid rangeland of the Succulent Karoo of South…Publication Date 2007
- semi-arid rangelands
- Mechanistic model
- plant growth
- diet selection
- food intake
- animal productivity
- rangeland condition
- rangelands
- plant production
- animal production
- communal farming
- livestock
- management
- soil moisture
- rainfall
- runoff
- modelling
- Africa
- Library Collection RecordClimate is one of the most important factors determining the sustainability of agricultural production systems. More emphasis must be placed on understanding the influence of changing climate…Publication Date 2007
- sustainable agriculture
- climate variability
- climate change
- Agricultural weather policy
- climate
- agriculture
- animal production
- plant production
- Africa
- Library Collection RecordA field experiment was conducted on an acid soil in a semi-subsistence farming area of KwaZulu-Natal, South Africa to investigate the possibility of using organic amendments as liming materials…Publication Date 2008
- lime
- Organic amendments
- Soil acidity
- Strip tillage
- no-till
- subsistence agriculture
- soil fertility
- Soil Condition
- plant production
- rehabilitation
- Africa
- Library Collection RecordThe effect of four fertiliser nitrogen (N) levels (0, 50, 100 or 150 kg N/ ha) applied as a single dressing in either autumn (late April), early winter (early June), late winter (mid July), early…Publication Date 2009
- herbage nitrogen yields
- nitrogen recovery rate
- pastures
- fertiliser
- management
- plant production
- fodder quality
- Western Cape Province
- South Africa
- Library Collection RecordResearch on the effects of ozone on agricultural crops and agro-ecosystems is needed for the development of regional emission reduction strategies, to underpin practical recommendations aiming to…Publication Date 2003
- Tropospheric ozone
- Ozone flux
- Ozone risk assessment
- detoxification
- Antioxidants
- Agricultural crops
- grassland
- climate change
- agriculture
- modelling
- plant production
- ecosystem ecology
- carbon dioxide
- Africa
- Library Collection RecordBiomass is considered a potential feedstock for many renewable energy production systems and interest especially in grass production has increased markedly in the last two decades. The present work…Publication Date 2012
- biomass
- grass
- harvesting
- yield
- Rate
- storage
- quality
- plant production
- Economic Aspects
- Africa
- Library Collection RecordSmallholder dairy farmers in Natural Region II, especially in Chikwaka Communal Area, adopted Acacia angustissima, Calliandra calothyrsus and Leucaena leucocephala in the 1995/96 season as…Publication Date 2009
- dairy
- Fodder
- small-holder
- Tree
- yields
- plant production
- communal farming
- animal nutrition
- forage quality
- fodder production
- soils
- management
- Zimbabwe
- Africa
- Library Collection RecordPoor irrigation management in pastures can lead to yield and quality reduction as well as loss of income through extra pumping and leaching of nitrate fertiliser. A number of irrigation scheduling…Publication Date 2014
- irrigation
- management
- pastures
- fertiliser
- plant production
- weather
- Ryegrass
- soil water
- plant production
- water dynamics
- nutrients
- South Africa
- Library Collection RecordKikuyu (Pennisetum clandestinum)–ryegrass (Lolium spp.) cultivated pastures form the base for dairy production in the southern Cape region of South Africa. The impact of various methods and…Publication Date 2014
- pasture management
- plant production
- Ryegrass
- kikuyu
- soil disturbance
- herbicides
- tillage
- southern Cape region
- South Africa
- Library Collection RecordA quantitative description of woody plant communities that aimed at aiding studies on grass–tree competition interactions, bush encroachment and estimation of food to browser herbivore species, was…Publication Date 2014
- Bush encroachment
- competition
- grasses
- browse
- fodder production
- plant production
- Africa
- Library Collection RecordBrowsing herbivores are generally highly selective feeders, selecting for new shoots and young plant material. Determinations of browser carrying capacity are then greatly inflated when based on…Publication Date 2014
- savanna
- browsing
- grazing
- game
- wildlife
- conservation
- carrying capacity
- climate
- soil
- rainfall
- modelling
- plant production
- management
- Zululand region
- KwaZulu-Natal
- South Africa
- Library Collection RecordWildfires can have significant impacts on rangeland productivity and functionality causing substantial economic losses to affected farmers. In August 2011, such wildfires swept through the North West…Publication Date 2013
- fire ecology
- rangelands
- plant production
- management
- grazing
- socio-economic aspects
- biodiversity
- savanna
- rainfall
- grazing capacity
- erosion
- ecosystem ecology
- soil nutrients
- South Africa
- Library Collection RecordFicus thonningii is a multipurpose browse tree in northern Ethiopia. Despite its importance, techniques for quantifying its browsable biomass have not been developed. To develop best-estimation…Publication Date 2012
- allometry
- indigenous fodder trees
- Tigray
- modelling
- plant production
- forage quality
- foraging ecology
- North Africa
- Ethiopia
- Library Collection RecordWe assessed the impact of Prosopis invasion and clearing on the grazing capacity of heavily grazed Nama Karoo rangeland in the Beaufort West district of the Western Cape province of South Africa.…Publication Date 2011
- exotic invasive plants
- management
- natural resources
- rangeland condition
- rehabilitation
- alien invasive plants
- grazing
- plant production
- forage quality
- Forage Quantity
- Nama Karoo
- South Africa
- Library Collection RecordThe study area was located in the central Free State Grassland biome, but the vegetation partially represented riparian thicket. Leaf carriage patterns of deciduous species were determined from…Publication Date 2011
- foraging ecology
- leaf budding
- leafless period
- mixed feeder
- seasonal changes
- senescing leaves
- rainfall
- temperature
- game
- foraging ecology
- Forage Quantity
- forage quality
- stocking rates
- plant production
- Wag-‘n-Bietjie Private Nature Reserve
- South Africa
- Library Collection RecordQuantification of the short-term impact of burning in terms of the encroacher shrub Seriphium plumosum and grass tuft mortality, seed germination of the shrub (field and seed bank), aboveground…Publication Date 2011
- bankrupt bush
- mortality
- seed germination
- slangbos
- Stoebe vulgaris
- Seriphium plumosum
- Alien invasive species
- germination
- seed banks
- grassland
- plant production
- seedlings
- fire ecology
- Thaba Nchu
- South Africa
- Library Collection RecordInteractions between mature grass plants and grass seedlings have been found to be both facilitative and competitive. To examine the effects of aboveground and belowground competition on seedling…Publication Date 2011
- competition
- grass seedling
- soil depth
- seedlings
- grasslands
- plant production
- siol depth
- plant autecology
- grazing
- stocking rates
- management
- South Africa
- Library Collection RecordArthropods are valuable biological indicators owing to strong relationships with primary producers. The supposition that arthropod-plant interactions are constant over seasons was tested using Mantel…Publication Date 2011
- arthropod community composition
- Bloemfontein Dry Grassland
- Mantel test
- plant community composition
- trophic interactions
- insects
- biological indicators
- plant production
- biodiversity
- ecosystem ecology
- grasslands
- Free State province
- South Africa
- Library Collection RecordThe Grassland biome is the most transformed biome in South Africa, with cultivation and other human impacts having the largest effect on pristine grasslands. Conversion of natural grassland to…Publication Date 2011
- conservation
- Gauteng
- grassland
- old lands
- rehabilitation
- species diversity
- reseeding
- restoration ecology
- Weeds
- plant production
- South Africa
- Library Collection RecordUsing the results from a long-term grazing trial in the Dry Highland Sourveld of the KwaZulu-Natal province, we prepared a water use efficiency value (the ratio of the increment in annual biomass to…Publication Date 2010
- animal production
- foraging ecology
- plant ecology
- plant production
- rangeland condition
- remote sensing
- monitoring
- grazing
- water use efficiency
- grassland
- MODIS
- KwaZulu-Natal
- South Africa
- Library Collection RecordIn spite of predictions of communal rangeland collapse due to continuous grazing and increased livestock populations, this grazing system remains prevalent in communal areas, suggesting animals…Publication Date 2010
- cattle
- Graze
- key resource areas
- livestock
- communal farming
- rangelands
- grazing
- plant production
- soils
- soil organic carbon
- Eastern Cape
- South Africa
- Library Collection RecordProductivity and mortality of grass plants following drought may be controlled by interactions between defoliation and severity of the drought. Prudent grassland management might mitigate deleterious…Publication Date 2010
- fodder production
- rehabilitation
- tradeoff
- water stress
- drought
- grazing
- grasslands
- management
- plant production
- KwaZulu-Natal
- South Africa
- Library Collection RecordWe investigated the effects of high biomass yielding winter cover crops, namely grazing vetch (Vicia dasycarpa L.) and oats (Avena sativa L.), on soil phosphorus (P) availability in low fertiliser…Publication Date 2014
- biomass
- pastures
- crops
- phosphorus
- soil nutrients
- plant production
- fertilizer
- Eastern Cape Province
- South Africa
- Library Collection RecordAbstract. Question: What is the long-term influence of nutrient availability, productivity and soil pH on grassland community organization? Location: Ukulinga research farm, KwaZulu-Natal, South…Publication Date 2005
- Above-ground production
- fertilization
- Hierarchy of limiting nutrients
- Plant trait
- primary productivity
- Soil acidification
- soil pH
- species richness
- soils
- plant production
- grasslands
- soil nutrients
- ecosystem ecology
- Africa
- Library Collection RecordQuestions: What are the patterns of remotely sensed vegetation phenology, including their inter-annual variability, across South Africa? What are the phenological attributes that contribute most to…Publication Date 2011
- Phytosociology
- AVHRR
- Biomes
- NDVI
- net primary production
- phenology
- Regression tree
- vegetation mapping
- mapping
- remote sensing
- plant production
- rainfall
- diversity
- South Africa
- Library Collection RecordAtmospheric CO2 has more than doubled since the last glacial maximum (LGM) and could double again within this century, largely due to anthropogenic activity. It has been suggested that low [CO2]…Publication Date 2010
- elevated CO2
- fire
- Last Glacial Maximum
- Root
- savanna
- starch
- carbon dioxide
- climate change
- grasslands
- fire ecology
- elevated CO2
- management
- plant autecology
- plant community ecology
- plant production
- Africa
- Library Collection Record1. Grazing lawns are short grassland areas where intense grazing maintains grass in an early growth stage. These areas represent a source of high-quality forage for herbivores. However, as herbivores…Publication Date 2010
- grazing
- grasslands
- management
- plant production
- savanna
- vegetation dynamics
- climatic variability
- continuous stocking
- grazing systems
- intensively managed grasslands
- large herbivores
- primary production
- rainfall
- white rhino
- South Africa
- Library Collection RecordVetch species (Vicia narbonensis, V. sativa and V. villosa) are widely used for fodder production in Tunisia. This study aims to investigate vetch strategies involved in drought resistance through…Publication Date 2014
- drought
- Fodder
- management
- plant production
- water stress
- vetch species
- growth
- water relations
- stomatal conductance
- proline
- Tunisia
- Africa
- Library Collection RecordSummary In savannas, degrading trends such as increasing woody cover are caused by livestock ranging. Hence, identifying sustainable utilisation intensities is crucial for range management. However,…Publication Date 2000
- ungulate herbivory
- semiarid rangelands
- degradation
- shrub encroachment
- savanna vegetation
- savanna
- sustainability
- management
- rangelands
- vegetation dynamics
- plant production
- animal production
- Africa
- Library Collection RecordSummary * 1The influence of botanical composition on annual phytomass production of a semi-arid grassland in response to precipitation was tested with a 19-year experiment. Three compositional states…Publication Date 2001
- basal cover
- biodiversity
- plant production
- precipitation-use efficiency
- rainfall
- grasslands
- rangeland condition
- modelling
- runoff
- Africa
- Library Collection RecordIn this study, we present a stochastic landscape modeling approach that has the power to transfer and integrate existing information on vegetation dynamics and hydrological processes from the small…Publication Date 2009
- modelling
- vegetation dynamics
- landscape ecology
- hydrology
- commercial agriculture
- subsistence agriculture
- grazing
- plant production
- runoff
- drought
- rainfall
- management
- Namibia
- Africa