Rangeland Ecology & Management
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- Library Collection Record1. Spatial variation in species composition within and among communities may be caused by deterministic, niche-based species sorting in response to underlying environmental heterogeneity as well as…Publication Date 2011
- ecosystem ecology
- community dynamics
- seeds
- agriculture
- succession
- community assembly
- community differentiation
- determinants of plant community diversity and structure
- dispersal limitation
- grassland
- meta-community
- nitrogen gradient
- secondary succession
- species pool
- species sorting
- Kansas
- USA
- Library Collection RecordIntercropping two species at different growth stages is common in temperate and tropical areas. An apparent recovery of growth is observed in late-maturing species after early-maturing species have…Publication Date 2011
- agriculture
- pastures
- intercropping
- Maize
- biodiversity
- management
- Gansu province
- China
- Library Collection Record1. Climate extremes are expected to increase in frequency and magnitude as a consequence of global warming. 2.Managed permanent grasslands cover a large surface in Europe and contribute substantially…Publication Date 2011
- agriculture
- drought
- modelling
- adaptation
- climate change
- plant production
- Ecosystem function
- climatic events
- extreme weather
- grassland
- meadows
- phenotypes
- plant-climate interactions
- provenances
- within-species variability
- Europe
- Library Collection Record1. Legacy effects of plant influences on abiotic and biotic soil properties can result in priority effects that influence the structure and composition of plant communities. To better understand the…Publication Date 2011
- restoration ecology
- agriculture
- soils
- legacy effects
- plant-soil (below-ground) interactions
- plant-soil feedback
- ragwort
- secondary succession
- Senecio jacobaea
- soil community
- Library Collection Record1. Induced changes in plant quality can mediate indirect interactions between herbivores. Although the sequence of attack by different herbivores has been shown to influence plant responses, little…Publication Date 2011
- above-ground-below-ground interactions
- Diabrotica virgifera
- Induced resistance
- plant-mediated effects
- plant-herbivore interactions
- plant quality
- Spodoptera frugiperda
- systemic signalling
- Zea mays
- teosinte
- agriculture
- Kansas
- USA
- Library Collection RecordDescription of the Data The Global Agricultural Lands in the Year 2000 data set represents the proportion of land area used as cropland (land used for the cultivation of food) and pasture (land used…Publication Date 2011
- croplands
- pasture
- Data
- mapping
- satellite imagery
- MODIS
- agriculture
- southern Africa
- Library Collection RecordAGRO-ICT-Backbone by PROGIS We want to draw your attention to the many benefits resulting from merging complementary technologies to one unique and outstanding integrated solution. I'm speaking…Publication Date 2011
- information technology
- agriculture
- GIS
- remote sensing
- southern Africa
- Library Collection RecordJuly 2011 | e-Agriculture Newsletter The e-Agriculture Newsletter is part of a global initiative to enhance sustainable agricultural development and food security by improving the use of Information…Publication Date 2011
- plant production
- animal production
- agriculture
- southern Africa
- Library Collection RecordA thorough understanding of the behavior of fire in grasslands is critical to the minimization of the impact of fires on agricultural and pastoral land as well as the successful management of the…Publication Date 2010
- fire
- grasslands
- management
- species richness
- climate change
- fire ecology
- agriculture
- pastoralism
- southern Africa
- Library Collection RecordClimate change is possibly the most highly profiled scientific issue of our time. The projected changes in temperature and rainfall are substantial, as will be the associated impacts on biodiversity…Publication Date 2010
- climate change
- temperature
- rainfall
- biodiversity
- agriculture
- carbon dioxide
- policy
- South Africa
- Library Collection RecordThe estimation of near surface air temperature (Ta) is useful for a wide range of applications such as agriculture, climate related diseases and climate change studies. Air temperature is commonly…Publication Date 2010
- Land surface temperature
- air temperature
- accuracy assessment
- MODIS
- remote sensing
- modelling
- climate change
- agriculture
- temperature
- disease
- Africa
- Library Collection RecordThis text reviews the assessments of marginal abatement costs of methane and nitrous oxide emissions from agriculture. We use agricultural emissions and the corresponding prices collected from 21…Publication Date 2010
- greenhouse gas emissions
- agriculture
- Abatement costs
- Meta-regression analysis
- Methane
- nitrous oxide
- greenhouse gases
- Economic Aspects
- modelling
- Library Collection RecordThe effects of climate change are controversial. This paper reviews the effects of climate change on livestock following the theory of global warming. Although, the effects of global warming will not…Publication Date 2010
- climate change
- animal production
- Livestock production systems
- sustainability
- drought
- plant production
- desertification
- Economic Aspects
- management
- agriculture
- global warming
- Library Collection RecordThe purpose of this study was to evaluate the usefulness of the spectral information of digital aerial sensors in determining land-cover classification using new digital techniques. The land covers…Publication Date 2010
- digital aerial photography
- expert classification algorithm
- land-cover classification
- objectoriented classification
- UltracamD
- agriculture
- land use
- Cordoba Province
- Spain
- Library Collection RecordBook review of Taking action on climate change: Long-term mitigation scenarios for South AfricaPublication Date 2010
- climate change
- policiy
- environment
- modelling
- greenhouse gases
- mitigation
- gas emissions
- socio-economic aspects
- agriculture
- southern Africa
- Library Collection RecordImproved agricultural productivity using conservation farming (CF) systems based on non-inversion tillage methods, have predominantly originated from farming systems in sub-humid to humid regions…Publication Date 2009
- Conservation farming
- Non-inversion tillage
- semi-arid
- Water productivity
- On-farm experiments
- no-till
- management
- agriculture
- plant production
- Africa
- Library Collection RecordUrban and peri-urban agriculture is becoming increasingly important as a source of income and food for the urban population in South Africa. This study was prompted by concerns of city authorities…Publication Date 2009
- Horticulture
- soil compaction
- Soil management effects
- Urban agriculture
- water content
- agriculture
- soils
- tillage
- soil moisture
- land use
- North West Province
- South Africa
- Library Collection RecordSouth Africa's moist grassland harbours globally significant biodiversity, supplies essential ecosystem services, supports crop and livestock agriculture, forestry and settlement, yet is poorly…Publication Date 2009
- agriculture
- animals
- biodiversity
- birds
- climate
- Conservation of Natural Resources
- crops
- Agricultural/growth & development
- ecosystem
- environment
- forestry
- insects
- mammals
- Poaceae
- Soil/analysis
- grasslands
- land use
- conservation
- management
- landscape ecology
- South Africa
- Library Collection RecordThe direct short-term impact of three rates of stocking (4, 8 and 16 small-stock units [SSU] ha-1) was quantified in terms of soil characteristics of arid Nama Karoo vegetation (subshrub/grass).…Publication Date 2009
- bulk density
- Infiltration Rate
- Karoo bushes
- soil compaction
- stocking rate
- sheep
- agriculture
- grazing
- soils
- stocking rates
- hydrology
- South Africa
- Library Collection RecordConservation agriculture is claimed to be a panacea for the problems of poor agricultural productivity and soil degradation in sub-Saharan Africa (SSA). It is actively promoted by international…Publication Date 2009
- No tillage
- Zero-tillage
- soil conservation
- crop residue
- mulch
- soil carbon
- adoption
- agriculture
- plant production
- degradation
- economics
- conservation agriculture
- Sub-Saharan Africa
- Library Collection RecordThe impacts of climate change are expected to be generally detrimental for agriculture in many parts of Africa. Overall, warming and drying may reduce crop yields by 10-20% to 2050, but there are…Publication Date 2009
- Season failure
- Poverty
- Agricultural systems
- Targeting
- climate change
- global warming
- agriculture
- drought
- animal production
- plant production
- livestock
- Sub-Saharan Africa
- Library Collection RecordLivestock are a global resource of significant benefits to society in the form of food, income, nutrients, employment, insurance, traction, clothing and others. In the process of providing these…Publication Date 2009
- agriculture
- livestock
- greenhouse gases
- Economic Aspects
- Africa
- Library Collection RecordThe influence of dispersed trees on microclimatic conditions, gas exchange and productivity of maize (Zea mays L.) in a Grevillea robusta-based agroforestry system in semi-arid Kenya was examined to…Publication Date 2009
- agroforestry
- Grevillea robusta
- microclimate
- temperature
- gas exchange
- Maize
- agriculture
- ecosystem ecology
- rainfall
- Kenya
- Africa
- Library Collection RecordAlso issued on CD-ROM. Summary available in English and AfrikaansPublication Date 2009
- agriculture
- plant production
- grazing
- management
- southern Africa
- Library Collection RecordThis article is a world-wide overview of plant domestication and the origins of agriculture. It focuses on the archaeological record: the what, where, and when of these processes, with a brief…Publication Date 2008
- agriculture
- China
- crops
- domestication
- eastern North America
- Formative
- Maize (corn)
- Mesoamerica
- Near East
- Neolithic
- New Guinea
- Rice
- Sub-Saharan Africa
- South America
- Southeast Asia
- wheat
- palaeobotany
- southern Africa
- Library Collection RecordSummary 10.1002/9780470292136.ch4.abs This chapter contains sections titled: * Objectives for This Chapter * Introduction * Factors Influencing the Agricultural Use of Animals * Animal Distribution…Publication Date 2008
- food production
- physiological adaptation
- buffalo
- livestock
- veterinary service
- agriculture
- management
- sustainability
- animal production
- southern 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 RecordIn Kenya, lands surrounding wildlife protected areas (PAs), referred to as dispersal areas, have undergone widespread land use changes, but these have been little studied. This study investigated…Publication Date 2008
- conservation
- agriculture
- national parks
- land use
- grazing
- biodiversity
- disturbance
- rainfall
- Africa
- Library Collection RecordThe paper brings to the fore a plethora of proven successes in agriculture and land management in Sub-Saharan Africa over the past 4 decades. Cases can be grouped into those based on agricultural…Publication Date 2008
- Sub-Saharan Africa
- agriculture
- land management
- soil and water conservation
- success
- management
- conservation
- soils
- water use efficiency
- Africa
- Library Collection RecordSemi-arid areas are often considered to be environmentally and economically marginal, a situation which has been exacerbated by economic change, shifts in agricultural production and land use, and…Publication Date 2008
- Dry land degradation
- Economic decline
- Livestock trends
- population change
- Small towns
- rangelands
- Economic Aspects
- livestock
- agriculture
- socio-economic aspects
- politics
- 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 RecordThe Highveld region in South Africa is an important area for its food production for the nation, as 70% of country's cereal crops and 90% of the commercially grown maize is cultivated there. The…Publication Date 2008
- Agro-ecosystem
- climate change
- sustainability
- food security
- South Africa
- agriculture
- Africa
- Library Collection RecordThis research investigated the role played by traditional leaders in environmental governance in the context of decentralization, based on a case study of grass utilization in QwaQwa. Specifically,…Publication Date 2008
- biodiversity
- conservation
- agriculture
- environmental aspects
- grasses
- South Africa
- QwaQwa
- grassland ecology
- veld grass
- grasswork
- tribal government
- chiefdoms
- environmental policy
- subsistence agriculture
- communal farming
- socio-economic aspects
- policies
- 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 RecordAbstract Anthropogenic perturbations have profoundly modified the Earth's biogeochemical cycles, the most prominent of these changes being manifested by global carbon (C) cycling. We…Publication Date 2007
- carbon sequestration
- 13C NMR
- deforestation
- land-use change
- NEXAFS
- organic matter composition
- Sr-FTIR-ATR
- synchrotron radiation
- land use
- grasslands
- vegetation dynamics
- carbon dynamics
- soil organic carbon
- agriculture
- Africa
- Library Collection RecordNo abstract availablePublication Date 2007
- agriculture
- soils
- Soil Condition
- grazing
- rangeland condition
- ecosystem dynamics
- Africa
- Library Collection RecordWe use the concept of ecological revolutions to explain the environmental history of Namaqualand, from the advent of pastoralism 2000 years BP, to colonial settlement in the 18th century and finally…Publication Date 2007
- degradation
- Environmental history
- human impact
- population
- repeat photography
- socio-economic aspects
- agriculture
- grazing
- management
- land use
- Africa
- Library Collection RecordCrop and rangelands are over 25% of the Earth's land area, and they are expanding. Agricultural ecosystems rely on a suite of supporting ecosystem services to provide food, fiber and fuel as…Publication Date 2007
- ecosystem services
- agriculture
- Nonmarket valuation
- research needs
- soil fertility
- policies
- Economic Aspects
- Africa
- Library Collection RecordThe soil's resistance to concentrated flow erosion is an important factor for predicting rill and (ephemeral) gully erosion rates. While it is often treated as a calibration parameter in process…Publication Date 2007
- soil erosion resistance
- critical shear stress
- soil erodibility
- concentrated flow
- flume experiments
- soil properties
- tillage practices
- soil erosion
- Soil Condition
- runoff
- agriculture
- no-till
- management
- Africa
- Library Collection RecordAdequate water supplies are essential to efficient livestock production. In many areas livestock are in conflict with crops for water and for key areas of use. Both surface and underground sources…Publication Date 2007
- Livestock drinking water
- Resource conflict
- Organization and management of water
- participation
- Cost recovery
- hydrology
- agriculture
- livestock
- socio-economic aspects
- policies
- Africa
- Library Collection RecordThe Clean Development Mechanism (CDM) of the Kyoto Protocol of the United Nations Framework Convention on Climate Change allows a country that emits C above agreed-upon limits to purchase C offsets…Publication Date 2007
- soil carbon
- carbon sequestration
- Carbon markets
- carbon credits
- poverty reduction
- drylands
- West Africa
- climate change
- greenhouse gases
- agriculture
- Economic Aspects
- socio-economic aspects
- 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 RecordSlash-and-burn agriculture (tavy) is the major cause of upland degradation and deforestation in eastern Madagascar. Upland degradation studies are largely based on floristic loss and have ignored the…Publication Date 2007
- Tavy
- Betsimisaraka
- Vegetation succession
- Agricultural productivity
- biodiversity
- Upland rice
- degradation
- species richness
- agriculture
- subsistence agriculture
- management
- fire
- household income studies
- traditional knowledge
- 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 RecordThe global farming systems (GFS) approach is extended by adding a soil fertility and nutrient management dimension for Africa's forest-based, maize mixed, cereal-root crop mixed, and agro-…Publication Date 2006
- soil fertility
- Nutrient stocks
- Nutrient flows
- Integrated nutrient management
- farming systems
- indicators
- Sub-Saharan Africa
- agriculture
- management
- soils
- socio-economic aspects
- food security
- policies
- Africa
- Library Collection RecordSuccess in long-term agricultural production in resource-poor farming systems relies on the efficiency with which nutrients are conserved and recycled. Each transfer of nutrients across the farming…Publication Date 2006
- cattle
- Compost
- feed intake
- manure
- nitrogen use efficiency
- N losses
- agriculture
- soil nutrients
- management
- communal farming
- livestock
- Africa
- Library Collection RecordThis study investigated rural livelihoods in two contrasting environments in the upper and lower reaches of the Gariep River: Sehlabathebe in the Lesotho highlands, and the Richtersveld in the…Publication Date 2006
- Rural development
- Lesotho
- Poor
- agriculture
- sustainability
- household income studies
- socio-economic aspects
- subsistence agriculture
- southern Africa
- Library Collection RecordThis 556-page book examines current grassland problems and issues, and provides an insight into grassland productivity in diverse areas of the world. There is a focus on recent technical advances and…Publication Date 2005
- grasslands
- foraging ecology
- agriculture
- climate change
- biodiversity
- GIS
- pastoralism
- Sustainable development
- Africa
- Library Collection RecordSummary Agriculture has claimed a large share of terrestrial environments in the tropics and subtropics through cultivation of native grasslands or forests. The impact of this anthropogenic change on…Publication Date 2005
- agriculture
- Soil Condition
- grasslands
- land use
- degradation
- management
- Sulphur
- Africa
- Library Collection RecordSustainable agriculture requires the formation of new humus from the crops. We utilized 13C and 15N signatures of soil organic matter to assess how rapidly wheat/maize cropping contributed to the…Publication Date 2005
- 13C and 15N
- Duration of arable cropping
- Particle-size fractionation
- Alternating C3/C4 vegetation
- SOM turnover
- C model
- Roth-C Model
- Soil Condition
- plant production
- grasslands
- sustainability
- agriculture
- fertilizer
- Africa