Rangeland Ecology & Management
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Displaying 101 - 150 of 171 results
- Library Collection RecordThe responses of East African grasses to defoliation at specific heights and frequencies were simulated mathematically over a single optimal growing season. The simulation model used morphological…Publication Date 1984
- plant production
- grazing
- plant autecology
- modelling
- Africa
- Library Collection RecordStrains of Cynodon dactylon (L.) Pers. were collected from six different climatic localities in South Africa. Under controlled conditions the strains were submitted to various environmental stress…Publication Date 1990
- plant autecology
- grasslands
- management
- pasture management
- drought
- plant production
- Africa
- Library Collection RecordIt is important to know how the increasing atmospheric concentration of carbon dioxide (CO2) will affect growth of agricultural plants. The objective of this study was to determine the effect of…Publication Date 1992
- climate change
- carbon dioxide
- grasslands
- plant autecology
- plant production
- agriculture
- Africa
- Library Collection RecordThis study examines the variability of the normalized difference vegetation index (NDVI) over Bostwana during the period 1982-1987. Its relationship to rainfall is evaluated from 26 stations…Publication Date 1994
- NDVI values
- rainfall
- soils
- savanna
- plant production
- ecosystem ecology
- Africa
- Library Collection RecordThe spectral behavior of an arid, Lehmann lovegrass (Eragrostis lehmanniana), range canopy with varying quantities of live, green grass, senesced, yellow grass, weathered, gray litter, and different…Publication Date 1987
- grasslands
- remote sensing
- plant production
- soils
- rangeland condition
- NDVI values
- Africa
- Library Collection RecordHand-held MARK-II radiometric measurements were used to estimate biomass yields and nitrogen (N) content of Alicia grass (Cynodon spp.) plots having five levels of nitrogen fertilization. The…Publication Date 1983
- plant autecology
- plant production
- fertilizer
- rangeland condition
- remote sensing
- Africa
- Library Collection RecordA model for estimating soil water content on native rangeland was tested at Sidney, Montana. Based on the Penman combination method for estimating potential ET, the model includes factors to account…Publication Date 1973
- modelling
- soils
- rangeland
- plant production
- management
- Africa
- Library Collection RecordA central goal of ecosystem ecology is to understand how the cycling of nutrients and the growth of organisms are linked. Ecologists have repeatedly observed that nutrient mineralization and plant…Publication Date 2004
- ecosystem ecology
- soil fertility
- soil nutrition
- plant production
- Africa
- Library Collection RecordWe analyzed data sets on phytomass production, basal cover, and monthly precipitation of a semiarid grassland in South Africa for good, medium, and poor rangeland condition (a) to investigate whether…Publication Date 2004
- grasslands
- plant production
- rainfall
- rangeland condition
- modelling
- biomass
- Africa
- Library Collection RecordThis study examined the short-term response of rangeland to annual (1993/94 to 1996/97 seasons) application of fertilizer [all combinations of 0; 10; 30 and 50 kgha-1nitrogen (N), with 0 and 10 kgha…Publication Date 2002
- aboveground phytomass production
- drought sensitivity
- Crude Protein Content
- nitrogen
- nutrient use efficiency
- phosphorus
- rain-use efficiency
- soil compaction
- rangelands
- fertilizer
- plant production
- species richness
- Soil Condition
- vegetation dynamics
- soil fertility
- Africa
- Library Collection RecordAcross nearly 100 sampling locations widely distributed within the arid shrubland of Western Australia, we demonstrated a general relationship between landscape function, primary productivity and…Publication Date 2002
- landscape function
- resilience
- Landscape degradation
- primary productivity
- indicators
- patch
- patch-mosaic
- ecosystem ecology
- plant production
- rainfall
- grazing
- sheep
- degradation
- Africa
- Library Collection RecordThe debate about the sustainability and productivity of communal lands, especially in comparison with privately managed land, is far from settled. Emerging theories emphasize the spatial and temporal…Publication Date 2000
- Vegetation Change
- vegetation diversity
- semi-arid
- southern Africa
- agropastoralism
- land use
- overgrazing
- Bush encroachment
- soil
- biodiversity
- vegetation dynamics
- indigenous encroaching species
- sustainability
- management
- plant production
- rangeland condition
- rainfall
- Africa
- Library Collection RecordOver a 3 year period, selected sites in three categories of rangeland -- good, moderate and poor -- were subjected to varying levels of frequency and intensity of defoliation. Three watering regimes…Publication Date 1999
- Above-ground phytomass production
- Evapo-transpiration
- intensity of defoliation
- frequency of defoliation
- rangeland condition
- soil water balance
- water-use efficiency
- plant production
- soil moisture
- Africa
- Library Collection RecordWatering points in the semi-arid Kruger National Park, Klaserie Private Nature Reserve, Cleveland Game Park and four game ranches in the Klaserie district were studied. Herbaceous community…Publication Date 2000
- rangeland condition
- watering points
- piosphere
- Kruger National Park
- national parks
- plant production
- Soil Condition
- stocking rates
- vegetation dynamics
- foraging ecology
- Africa
- Library Collection RecordA recently published rangeland health assessment guide for arid shrublands of the Karoo, South Africa, addresses the problem of apathy toward rangeland. The guide is designed for land users with a…Publication Date 1998
- rangeland health assessment guide
- South Africa
- shrublands
- Karoo
- rangelands
- decision support systems
- Soil Condition
- animal production
- plant production
- ecology
- management
- Africa
- Library Collection RecordThis work reports on a method using fuzzy membership functions to construct an aggregated interaction matrix in which the summation of variables is scaled according to the way rainfall and soil…Publication Date 1995
- rangelands
- biomass production
- fuzzy sets
- interaction matrix
- models
- aggregated knowledge
- rainfall
- Soil Condition
- soil moisture
- water use efficiency
- plant production
- animal production
- Africa
- Library Collection RecordA paired site study was conducted of communally grazed eutrophic and dystrophic grasslands and adjacent ungrazed areas of varying periods of exclusion from communal grazing. This allowed…Publication Date 1999
- grasslands
- grazing
- rural areas
- subsistence agriculture
- animal production
- plant production
- biodiversity
- Africa
- Library Collection RecordUniversity of Natal , Pietermaritzburg, Doctor of Philosophy in the School of Life and Environmental Sciences.Publication Date 2004
- grasslands
- mangement
- carbon dioxide
- community vegetation studies
- plant production
- water use efficiency
- ecosystem ecology
- Africa
- Library Collection RecordThe well-described pattern of a few common and many rare species in plant communities (dominance-diversity curves) also has been documented within populations of dominant plant species. Understanding…Publication Date 2014
- ecosystem ecology
- plant production
- community dynamics
- genotypes
- competition
- Andropogon gerardii
- competition
- genotype richness
- grassland
- intergenotypic competition
- intragenotypic competition
- light
- neighborhood effects
- nitrogen
- water
- USA
- Library Collection RecordThe objective of this study, which was part of a larger grazing-systems experiment, was to investigate the cumulative impact of three levels of grazing intensity on sward production, utilization and…Publication Date 2014
- grazing
- management
- cows
- dry matter
- plant production
- Economic Aspects
- post-grazing sward height
- tiller density
- rejected area
- leaf yield
- Lolium perenne
- Ireland
- Co. Cork
- Ireland
- Library Collection RecordOn rangelands, uneven or unmanaged livestock distribution can adversely affect plant community composition, riparian function, or displace wildlife. These issues have historic precedents and are…Publication Date 2009
- range management
- grazing behaviour
- forage selection
- standing crop
- management
- grasslands
- plant production
- forage quality
- cattle
- grazing
- Burns
- Oregon
- USA
- Library Collection RecordFirst page of Land, Food, and Biodiversity Agriculture currently occupies over 40% of Earth's land area and consumes 70% of available freshwater. Production systems have increased food output in…Publication Date 2011
- biodiversity
- animal production
- plant production
- Economic Aspects
- ecology
- conservation
- land use
- management
- Library Collection Record1. Plant diversity has profound effects on primary production. Plant diversity has been shown to correlate with increased primary production in nutrient-limited grassland ecosystems. This…Publication Date 2010
- ecosystem ecology
- grassland
- biodiversity
- determinants of plant community diversity and structure
- ecosystem functioning
- niche differentiation
- Nutrient depletion
- root ecology
- root interactions
- species interactions
- soil nutrients
- soil organic matter
- plant production
- Library Collection RecordThis paper examines if post-fire deferment and periodic rests provided by rotational grazing allowed for more rapid recovery of soil cover, soil chemical and physical parameters, and vegetation…Publication Date 2010
- grazing management
- infiltration
- prescribed burning
- soil health
- summer fire
- rangeland restoration
- Soil Condition
- management
- grazing
- fire ecology
- plant production
- plant community ecology
- rangeland condition
- rangelands
- Texas
- USA
- Library Collection Record1. Annual above-ground net primary productivity (ANPP) in mesic grasslands is known to be highly temporally variable. While yearly precipitation or average yearly temperature can explain some of this…Publication Date 2011
- grasslands
- rainfall
- temperature
- plant production
- C4 grasses
- ecosystem ecology
- climate variability
- dominant species
- inflorescence
- intra-annual variation
- plant-climate interactions
- precipitation
- structural equation modelling
- tallgrass prairie
- temperature
- Kansas
- USA
- Library Collection RecordThe effects of inter-cutting interval on biomass yield, growth components and chemical composition of napiergrass (Pennisetum purpureum Schumach) as a source of bioenergy was investigated over 1 year…Publication Date 2011
- bioenergy
- plant production
- dry matter
- Economic Aspects
- biomass yield
- chemical composition
- cutting interval
- napiergrass
- Thailand
- Library Collection RecordAbstract Several multi-year biodiversity experiments have shown positive species richness-productivity relationships which strengthen over time, but the mechanisms which control productivity are not…Publication Date 2013
- biomass production
- Community mean traits
- environmental filtering
- functional diversity
- niche differentiation
- Species identity
- biodiversity
- grasslands
- community analysis
- vegetation dynamics
- species richness
- plant production
- ecosystem ecology
- Thuringia
- Germany
- Library Collection RecordA simulation model was used to determine the ecological and economic consequences of managing stocking rate on semi-arid savanna rangeland continuously stocked with livestock to achieve the alternate…Publication Date 2009
- continuous grazing
- ranching systems
- range condition
- semi-arid
- stocking rates
- sustainability
- Economic Aspects
- grazing
- savanna
- rangeland condition
- management
- rainfall
- indigenous encroaching species
- animal production
- modelling
- plant production
- Library Collection RecordThis study aimed to estimate green herbage biomass (GBM) and crude protein (CP) concentrations of a mixed-sown pasture in Hokkaido, Japan using ground based hyperspectral measurements and…Publication Date 2011
- plant production
- fodder quality
- pastures
- management
- grazing
- geostatistical analysis
- herbage biomass
- Herbage Quality
- hyperspectral measurement
- mapping
- Hokkaido
- Japan
- Library Collection Record1. While positive effects of biodiversity on temporal stability of communities have been demonstrated in theoretical and empirical studies, diversity -stability relationships at the population level…Publication Date 2011
- grasslands
- biodiversity
- ecosystem ecology
- covariance
- plant population and community dynamics
- population stability
- synchrony
- temporal stability
- species richness
- plant production
- Thuringia
- Germany
- Library Collection RecordPastoral-based animal production systems are under increasing pressure to provide the high quantity and quality of feed needed for optimal ruminant performance. The capacity of farmers to increase…Publication Date 2011
- pasture
- greenhouse gases
- management
- plant production
- forage breeding
- fitness
- pasture persistence
- trait expression
- respiration
- cultivar evaluation
- forage quality
- breeding targets
- WSC
- environmental impact
- New Zealand
- Library Collection RecordAn important issue in plant ecology is the extent to which functional traits that explain patterns at one organizational level serve as explanatory variables at higher levels, while a related subject…Publication Date 2011
- plant traits
- Individual level
- Population level
- Abandonment
- mowing
- Meadow
- ecosystem ecology
- plant functional traits
- mowing
- simulated grazing
- plant production
- pastures
- Czech Republic
- Library Collection RecordSmooth bromegrass (Bromus inermis Leyss.), meadow bromegrass (Bromus riparius Rehm.) and hybrid bromegrass (B. riparius x B. inermis) are widely used for hay and pasture in temperate regions of the…Publication Date 2011
- pastures
- plant production
- management
- plant physiology
- grasses
- Bromegrass
- defoliation
- etiolated regrowth
- remobilization of stored reserves
- Saskatoon
- Canada
- Library Collection RecordThe savannah of central Brazil occupies 208 million ha, of which about 54 million ha have been converted to cultivated pasture. The aim of this study was to provide the dynamics of evapotranspiration…Publication Date 2011
- savanna
- pasture
- evapotranspiration
- rainfall
- plant production
- Brachiaria brizantha
- Cerrado biome
- eddy covariance
- decoupling factor
- Brazil
- South America
- Library Collection RecordQuestions During restoration of bare subsoil, are planted grassland communities with low species richness more susceptible to invasion by non-residents than communities augmented by additional…Publication Date 2013
- diversity
- dominance
- Early Succession
- Elymus virginicus
- evenness
- functional type
- grassland restoration
- invasion resistance
- restoration ecology
- Alien invasive species
- species richness
- grasslands
- plant production
- Lexington
- Virginia
- USA
- Library Collection RecordIncreasing plant species diversity in grasslands may improve productivity and stability of yields. In a field experiment, we investigated the herbage dry-matter (DM) yield and crude protein content…Publication Date 2014
- plant production
- grasslands
- Dry Matter Yield
- legumes
- management
- fertiliser
- soil fertility
- multispecies mixtures
- cutting
- grazing
- grass-clover
- Trifolium pratense
- Trifolium repens
- Jutland
- Denmark
- Library Collection RecordThe effects of summer-to-winter simulated grazing management factors, namely defoliation interval (INT: 21, 42, 56 or 84 d), defoliation height (DH: 2·7, 3·6, 5·3 or 6·0 cm) and final defoliation…Publication Date 2014
- grazing
- management
- plant production
- fodder production
- pastures
- white clover
- perennial ryegrass
- defoliation
- Interval
- height
- closing date
- Ireland
- Library Collection Record1. Life table response experiment (LTRE) analyses have been widely used to examine the sources of differences in the long-term deterministic growth rate (r = log ?) of stage-structured populations…Publication Date 2010
- Anthyllis vulneraria
- climate change
- life table response experiment (LTRE)
- population growth
- stochastic elasticities
- vegetation dynamics
- fertility
- plant production
- soil depth
- grasslands
- Library Collection RecordUnderstanding changes in biodiversity in agricultural landscapes in relation to land-use type and intensity is a major issue in current ecological research. In this context nutrient enrichment has…Publication Date 2011
- Biodiversity exploratories
- fertilization
- grazing
- land use
- mowing
- nitrogen
- nutrient limitation
- phosphorus
- productivity
- agriculture
- pastures
- grasslands
- plant production
- soil nutrients
- Europe
- Library Collection RecordResearch to study the effect of cover crop sowing rate, row spacing and cultivar on establishment of lucerne (Medicago sativa L.)-based pastures in a semi-arid zone mixed-farming system was…Publication Date 2014
- Lucerne
- plant production
- rainfall
- pasture
- management
- undersow
- nurse crop
- alfalfa
- forage
- companion crop
- Austrailia
- Library Collection RecordIn a 3-year experiment, we compared the fertilizer efficiency of sigmoidal releasing-type coated urea (CUS) and linear releasing-type coated urea (CUL) to that of readily available urea (RU). CUS and…Publication Date 2014
- fertiliser
- plant production
- pasture
- managementCoated urea
- herbage
- releasing-type
- seasonal herbage productivity
- single application
- Miyota
- Nagano
- Japan
- Library Collection RecordPasture managers seek to balance leaf appearance with utilization to sustain sward productivity while meeting livestock nutritional needs. Achieving this in silvopasture must account for the…Publication Date 2011
- pasture
- management
- plant production
- non-structural carbohydrates
- shade
- orchard grass
- tall fescue
- Appalachian region
- USA
- Library Collection RecordOverseeded winter annuals in bermudagrass [Cynodon dactylon (L.) Pers.] improve annual dry-matter (DM) yield and capture nutrients in fields receiving manure application. This study determined the…Publication Date 2011
- Dry Matter Yield
- pastures
- plant production
- drought
- fertiliser
- annual ryegrass
- Bermudagrass
- berseem clover
- cereal rye
- fertilization
- manure
- nitrogen
- Mississippi
- USA
- Library Collection Record1. Our aim was to explore plant - soil feedback in mixed grassland communities and its significance for plant productivity and community composition relative to abiotic factors of soil type and…Publication Date 2010
- grassland
- ecosystem ecology
- vegetation dynamics
- community ecology
- plant production
- Soil Condition
- soil fertility
- management
- above-ground biomass
- functional groups
- mesocosm
- mesotrophic grassland
- plant community dynamics
- plant - soil feedback
- soil conditioning
- Northumberland
- UK
- Library Collection RecordQuestion How is the magnitude and seasonality of carbon uptake affected by the replacement of native grasslands by eucalyptus plantations? Location RÃo de la Plata Grasslands in Argentina and…Publication Date 2013
- ANPP
- land-use change
- MODIS
- NDVI
- RÃo de la Plata Grasslands
- tree plantations
- grasslands
- restoration ecology
- carbon sequestration
- rainfall
- plant production
- land use
- global warming
- management
- Argentina
- Uruguay
- Library Collection RecordThe ability to survive harsh winters is one of the primary factors limiting bermudagrass (Cynodon spp.) distribution, especially those used for forage. Consequently, improved stress tolerance has…Publication Date 2011
- forage quality
- plant production
- temperature
- cold hardiness
- Cynodon
- temperature stress
- Library Collection RecordThe study represents the first efforts since 1909 to develop improved Sudangrass (Sorghum bicolor (L.) Moench, syn. S. sudanense (Piper) Stapf) cultivars from the original genetic stock existing in…Publication Date 2010
- forage sorghum
- green chopping
- Islang
- neutral detergent fibre
- Shambat
- seeds
- forage quality
- plant autecology
- plant production
- Library Collection RecordWarm-season pasture residue may create problems for no-till overseeding with cool-season grasses in the USA Southern Plains. Removal of residue to facilitate overseeding, however, represents…Publication Date 2011
- plant production
- no-till
- pasture management
- oversowing
- Italian Ryegrass
- Festuca spp
- Herbage Yield
- temperature
- winter damage
- Southern Plains
- USA
- Library Collection Record1. Recent theoretical studies suggest that the stability of ecosystem processes is not governed by diversity per se, but by multitrophic interactions in complex communities. However, experimental…Publication Date 2011
- grasslands
- ecosystem ecology
- plant production
- invertebrates
- above- and below-ground interrelationships
- biodiversity loss
- biodiversity-ecosystem functioning relationship
- earthworms
- herbivore insects
- Jena Experiment
- plant-soil (below-ground) interactions
- variability
- Thuringia
- Germany
- 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