Rangeland Ecology & Management
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Displaying 151 - 183 of 183 results
- Library Collection RecordSummary 10.1002/9780470698716.ch20.abs This chapter contains section titled: * Early Grassland Soils * How did Grasslands Arise? * Evolutionary ProcessesPublication Date 2008
- dry continental interiors
- advent of grasses
- urine-impregnated middens
- plant fossils
- ancient aridland ecosystems
- grasslands
- palaeobotany
- ecosystem ecology
- southern Africa
- Library Collection RecordDecomposition is a process that releases nutrient materials in the structure of plant and animal tissues to the soil solution where the nutrients are once again potentially available to plants.…Publication Date 2002
- ecology
- desertification
- soils
- southern Africa
- Library Collection RecordThe geology, climates past and present, and soils of Africa are summarized, as are the effects of fire on the vegetation. The vegetation and animals of each major zone – forest, tropical seasonal…Publication Date 2001
- ecosystem ecology
- biodiversity
- southern Africa
- Library Collection RecordSummary 10.1002/9780470609880.ch8.abs This chapter contains sections titled: * Introduction * Hominid Exploitation of Wetlands Environments and Resources * Early Hominins: Colonization of New…Publication Date 2010
- exploitation of wetlands environments and foods by pre-sapiens hominins
- early hominins - colonization of new environments
- preconditions for encephalization - physiological considerations
- palaeobotany
- southern Africa
- Library Collection RecordSummary Grasses are one of the great successes of evolution. They occur in nearly every habitat from impoverished Antarctic wastes to the lush tropics and are dominant over vast stretches of…Publication Date 2007
- fire ecology
- grasslands
- 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 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 RecordNo Abstract available.Publication Date 2003
- grasslands
- management
- agriculture
- southern Africa
- Library Collection RecordSummary Grasslands are located in areas with precipitation ranging between 150 and 1200 mm yr-1 and temperature between 0 and 25 C (Lieth and Whittaker, 1975). Along a precipitation gradient, in…Publication Date 2001
- grasslands
- rainfall
- ecosystem ecology
- southern Africa
- Library Collection Record
160 GRASSLAND SOILS
No Abstract available.Publication Date 2005- grasslands
- soil
- southern Africa
- Library Collection RecordWoody plant encroachment has been widespread in grassland and savanna ecosystems over the past century. This phenomenon jeopardizes grassland biodiversity and threatens the sustainability of pastoral…Publication Date 2001
- grasslands
- soils
- indigenous encroaching species
- southern Africa
- Library Collection RecordThe carbon- and oxygen-isotopic composition of surficial meteoric carbonate (soils, groundwater) is widely used in paleoenvironmental reconstruction in the Quaternary. Temperature, the oxygen-…Publication Date 2007
- Meteoric Carbonate
- carbon isotopes
- Oxygen Isotopes
- Devils Hole
- soil
- C4 plants
- palaeoclimate
- southern Africa
- Library Collection RecordNo abstract available.Publication Date 1969
- nutrition
- forage quality
- southern Africa
- Library Collection RecordAbstract Livestock grazing is often viewed as having detrimental effects on plants and plant communities. Livestock grazing can, however, be managed to be an effective tool for vegetation management…Publication Date 2010
- livestock
- grazing
- nutrition
- ecology
- management
- vegetation dynamics
- ecosystem ecology
- fire ecology
- southern Africa
- Library Collection RecordSummary In this chapter, we discuss climatic fluctuations in northern and eastern Africa during the Holocene and in particular the middle Holocene. The major emphasis is on the Sahara and the…Publication Date 2007
- palaeobotany
- palaeoclimate
- southern Africa
- Library Collection RecordThe pollen record of the late Pleistocene in Africa is poorly resolved due to the paucity of sites combined with the fragmented nature of most sequences. A vegetation history of the continent can,…Publication Date 2007
- palynology
- Vegetation history
- Last Glacial Maximum
- Biomes
- Tropical rain forest
- savannas
- Arid and semiarid biomes
- Afromontane region
- Mediterranean climate regions
- climate change
- Refugium hypothesis
- palaeoecology
- palaeobotany
- palaeoclimate
- palaeoenvironmental data
- southern Africa
- Library Collection RecordNo abstract available.Publication Date 1970
- pasture management
- agriculture
- 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 RecordIn the Sahel and the Kalahari, the growth in groundwater extraction via simple wells and boreholes is contributing to an increased use of dryland natural resources, to competition for resources, and…Publication Date 2003
- rangeland condition
- rainfall
- groundwater
- animal production
- vegetation dynamics
- biodiversity
- bush thickening
- indigenous encroaching species
- southern Africa
- Library Collection RecordLivestock have played a pivotal and positive role in human development. Yet this has come at a heavy cost to the biological diversity of the world's rangelands and forests. Livestock grazing is…Publication Date 2001
- rangelands
- ecology
- livestock
- 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 Record
172 Grasslands
Vegetation dominated by grasses, which is among the largest ecosystems in the world, has great environmental significance as well as providing feed for livestock and wildlife. Grassland types vary…Publication Date 2001- savannah
- steppe
- grasses
- herbivory
- grazing
- fire
- savanna
- grasslands
- disturbance
- livestock
- 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 chapter describes different patches that are included in a single landscape unit. Patches differ in size, species composition, and the way they function in a landscape. Patches may be composed of…Publication Date 2002
- vegetation dynamics
- ecology
- southern Africa
- Library Collection RecordThis chapter contains sections titled: * Introduction * Why has woody plant abundance increased on rangelands? * Traditional perspectives on woody plant encroachment * Emerging perspectives on woody…Publication Date 2009
- southern Africa
- Library Collection RecordSummary In order to obtain a better insight into past vegetational and climatic changes along the Pole-Equator-Pole: Americas (PEP 1) transect, 32 late Quaternary pollen records from savanna and…Publication Date 2001
- southern Africa
- Library Collection RecordGrassland in most cases is a man-made ecosystem. It covers large areas as a result of logging and slash-and-burn agriculture. It is maintained by regularly burning and cattle grazing. In contrast to…Publication Date 2006
- southern Africa
- Library Collection RecordAfrican lakes show considerable dynamism over a range of timescales, underlining the large changes in precipitation-evaporation balance that have characterized Quaternary climates in Africa. On a…Publication Date 2007
- southern Africa
- Library Collection RecordSub-Saharan Africa (SSA) faces multiple problems. The main one is improving the lives of the 30% of its population that suffers from extreme poverty and food insecurity. As more than 70% of the…Publication Date 2007
- southern Africa
- Library Collection RecordNo abstract available.Publication Date 2011
- southern Africa
- Library Collection RecordOver the past decade, economic and agricultural growth in sub-Saharan Africa (SSA) has resumed. The secular downward trend in agricultural prices ended in the early 1990s; growing incomes in Asia and…Publication Date 2010
- southern Africa
- Library Collection RecordNo abstract availablePublication Date 2006
- ecosystem ecology
- management
- Africa