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Dissertations / Theses on the topic 'Arid rangelands'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Popp, Alexander. "An integrated modelling approach for sustainable management of semi-arid and arid rangelands." Phd thesis, kostenfrei, 2007. http://opus.kobv.de/ubp/volltexte/2007/1510/.

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2

Dube, Sikhalazo. "A model for adaptive livestock management on semi-arid rangelands in Texas." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/3975.

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A stochastic, compartmental Model for Adaptive Livestock Management (MALM) was developed for cow-calf enterprise for Rolling Plains of Texas from an existing model, Simple Ecological Sustainability Simulator (SESS). The model simulates forage and animal production. It runs on a monthly time step. Two stocking strategies, flexible and fixed, were evaluated at seven stocking levels for effects on forage and animal production, range condition, and net ranch income. Evaluation data were obtained from published and unpublished data from Texas A&M Agricultural Experimental Station at Vernon for Thro

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3

Hobbs, Trevor J., and n/a. "Herbage production modelling and assessment in the arid rangelands of Central Australia." University of Canberra. Applied Science, 1994. http://erl.canberra.edu.au./public/adt-AUC20060725.143830.

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The management and sustainable use of Central Australian rangelands for livestock production and conservation requires improved knowledge of the temporal and spatial distribution of primary production in this region. To provide such information, this thesis investigated methods that could rapidly and efficiently estimate regional herbage biomass production in these arid landscapes. Two different approaches were examined, using (1) ground-based or (2) satellite-based data sources. Soil moisture and herbage growth data were collected over several growth seasons and five landscape types in Centra

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4

Venter, Daniel Barend. "An ecological approach to the reclamation and improvement of arid rangelands using adapted fodder plants." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-03262007-124226.

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5

Aubault, Hélène. "Estimating the Impacts of Pastoral Activities Upon Wind Erosion in the Arid and Semi-arid Rangelands of Eastern Australia." Thesis, Griffith University, 2014. http://hdl.handle.net/10072/368144.

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Wind erosion is widespread across the world’s drylands and includes the arid and semi-arid rangelands of Australia. An estimated 110 Mt of dust is eroded by wind from the Australian land surface each year, most of which originates from the arid and semi-arid rangelands. Livestock production is known to increase the susceptibility of the rangelands to wind erosion, and produce accelerated erosion, by reducing vegetation cover and modifying surface soil stability. Extended episodes of wind erosion have been reportedly caused by overgrazing notably in Australia in the 1940’s and 1960s. However, r

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6

Knight, Colt Watson. "Intake, Reproductive, and Grazing Activity Characteristics of Range Cattle on Semi-arid Rangelands." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/612879.

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ABSTRACT: Study One - Our objective was to characterize mature range cows based on intake and grazing activity. Starting in the early spring of 2013, 4 experiments were conducted. First, mature range cows (n = 137) were fitted with radio frequency identification tags (RFID) and placed in a dry-lot pen equipped with GrowSafe® technology to monitor DMI of alfalfa hay. These data were then used to assign cows a residual feed intake (RFI) value utilizing the National Research Council (NRC) (1996) model to predict intake of beef cattle. Cattle with negative and positive RFI were characterized as lo

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7

Choquenot, David. "The dynamics of feral pig populations in the semi-arid rangelands of Eastern Australia." Phd thesis, University of Sydney, 1994. http://hdl.handle.net/2123/14299.

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8

Holmes, Philip. "The environmental and financial sustainability of pastoralism in Australian arid rangelands: a case study approach." Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/10502.

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THE ENVIRONMENTAL AND FINANCIAL SUSTAINABILITY OF PASTORALISM IN AUSTRALIAN ARID RANGELANDS: A CASE STUDY APPROACH The question of the overall long-term sustainability of Australian arid rangeland pastoralism has never been satisfactorily addressed and remains unanswered. This study attempts to determine if arid rangeland pastoralism is concurrently financially and environmentally sustainable in the long term. This study was conducted over 12 years in the southern Alice Springs pastoral region with six pastoral businesses. The total area under management was 26,085 km2, carrying 38,683 cattl

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9

Van, den Berg Loraine. "The evaluation and promotion of best practices for the restoration of arid- and semi-arid rangelands in southern Africa / Loraine van den Berg." Thesis, North-West University, 2007. http://hdl.handle.net/10394/2036.

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10

Child, Brian. "The role of wildlife utilization in the sustainable economic development of semi-arid rangelands in Zimbabwe." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.481088.

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11

Fonnesbeck, Brook B. "Digital Soil Mapping Using Landscape Stratification for Arid Rangelands in the Eastern Great Basin, Central Utah." DigitalCommons@USU, 2015. https://digitalcommons.usu.edu/etd/4525.

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Digital soil mapping typically involves inputs of digital elevation models, remotely sensed imagery, and other spatially explicit digital data as environmental covariates to predict soil classes and attributes over a landscape using statistical models. Digital imagery from Landsat 5, a digital elevation model, and a digital geology map were used as environmental covariates in a 67,000-ha study area of the Great Basin west of Fillmore, UT. A “pre-map” was created for selecting sampling locations. Several indices were derived from the Landsat imagery, including a normalized difference vegetation

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12

Pando, Marisela. "A new approach in the use of Landsat imagery for inventory of rangeland /." University of Adelaide, 1987. http://web4.library.adelaide.edu.au/theses/09SM/09smp189.pdf.

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13

Weiss, Jeremy, and Michael Crimmins. "DroughtView: Satellite-based Drought Monitoring and Assessment." College of Agriculture, University of Arizona (Tucson, AZ), 2017. http://hdl.handle.net/10150/625291.

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6 pp.<br>Remotely sensed data are valuable for monitoring, assessing, and managing impacts to arid and semi-arid lands caused by drought or other changes in the natural environment. With this in mind, we collaborated with scientists and technologists to redevelop DroughtView, a web-based decision-support tool that combines satellite-derived measures of surface greenness with additional geospatial data so that users can visualize and evaluate vegetation dynamics across space and over time. To date, users of DroughtView have been local drought impact groups, ranchers, federal and state land mana

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14

Saley, Moussa Abdoulaye. "Evaluation of selected soil properties in semi-arid communal rangelands in the Western Bophirima district, South Africa / Abdoulaye Saley Moussa." Thesis, North-West University, 2007. http://hdl.handle.net/10394/1306.

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15

Kent, Vivien Tempest. "The status and conservation potential of carnivores in semi-arid rangelands, Botswana : the Ghanzi farmlands : a case study." Thesis, Durham University, 2011. http://etheses.dur.ac.uk/728/.

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The persistence of many species of carnivore may depend on their survival outside protected areas where they come into conflict with humans and their livestock. Knowledge of these wildlife populations and of the perceptions and attitudes of the stakeholders in the areas in which they live is of critical importance in the quest for coexistence. The Ghanzi farmlands in western Botswana are a prime example of semi-arid rangeland where humans, domestic livestock and wildlife live side by side with varying degrees of success. But little research has been conducted in the area into either the wildli

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16

Tomlinson, Hannah Angie Kelsey. "Brine Impacted Soils in Semi-Arid Rangelands: Greenhouse Electrical Conductivity Thresholds and Ex Situ/In Situ Remediation Comparisons." Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/27965.

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Brine is a by-product of oil and gas extraction that can have profound impacts on soil chemistry and vegetation assemblages when discharged onto the soil surface. Brine spill remediation aims to remove or minimize the saturated paste electrical conductivity (ECe) to levels suitable for plant growth. My research focused on evaluating ECe and plant parameters on topsoil excavation and chemical amendment sites, and examining brine thresholds of several native grasses. Halophytic grasses had a higher brine threshold between 18.6 and 34.6 dS m-1 whereas glycophytic grasses exhibited a lower thresho

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17

Knapp, Paul Aaron. "THE USE OF LARGE-SCALE AERIAL PHOTOGRAPHY FOR DETECTING CHANGES OF AN ARID RANGELAND IN SOUTHWESTERN ARIZONA." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/292059.

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Interpretation of large-scale color infrared and color aerial photography can be a labor and cost-effective means for inventorying and monitoring rangelands while maintaining accuracy. Ground measurements of vegetation cover at Organ Pipe Cactus National Monument were taken in 1975 and 1984. Large-scale (1:1200) color and color infrared aerial photo estimates were compared to these ground measurements through regression and correlation to check photo accuracy. Relationships between photo estimates and ground measurements of total vegetation and shrub cover were strong when using either film ty

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18

Olbrich, Roland [Verfasser], and Stefan [Akademischer Betreuer] Baumgärtner. "Environmental Risk and Sustainability: The Case of Commercial Livestock Farming in Semi-Arid Rangelands / Roland Olbrich. Betreuer: Stefan Baumgärtner." Lüneburg : Universitätsbibliothek der Leuphana Universität Lüneburg, 2012. http://d-nb.info/1034147544/34.

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19

Al-Tabini, Raed Jazi. "An evaluation of the potential of Atriplex nummularia for sheep production in arid Jordanian rangelands : the effects of defoliation management." Thesis, University of Newcastle Upon Tyne, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366537.

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20

Coventry, Jocelyn. "Review of aspects of breeding herd performance from beef cattle projects on the arid rangelands of the Alice Springs District." Thesis, Coventry, Jocelyn (2013) Review of aspects of breeding herd performance from beef cattle projects on the arid rangelands of the Alice Springs District. Masters by Research thesis, Murdoch University, 2013. https://researchrepository.murdoch.edu.au/id/eprint/18322/.

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To effectively record the variability that is a feature of beef cattle herds on arid rangelands, sustained periods of objective data collection are required. This has been infrequently achieved on pastoral properties in the Alice Springs district of the Northern Territory. In this thesis, historical data are analysed from three primary beef cattle projects with breeding herds north of Alice Springs. Each of these projects involved data and sample collections during a 4- to 5-year period. Publications from each project were reviewed to identify summaries on breeding herd performance and gaps in

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21

Simanga, Siyabulela. "Vegetation and soil characteristics around water points under three land management systems in semi-arid rangelands of the Eastern Cape, South Africa." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1015795.

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This study investigated the vegetation and soil characteristics in relation to distance from water points under different land management systems in semi-arid rangelands of South Africa. Six study sites, two each from communal grazing, commercial farming and game reserves were selected. Two watering points were selected in each study site. Two 500 m transects were laid from the selected watering points. Each transect was divided into sub-transects at 25 m, 50m, 100m, 200m, 300m and 500m from water points. A 100 m2 plot was marked in each sub-transect to record grass biomas, species composition

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22

Khalili, Davar 1955. "A decision methodology for the resource utilization of rangeland watersheds." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/191118.

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Degradation of rangeland resources leading to the desertification process is viewed in terms of human and climatic influences. While climatic impacts are important, resource utilization as practiced by man is the major cause of desertification. A multi-objective .decision methodology is developed here which is intended for the analysis of alternative management plans of rangeland watersheds under climatic variability. First, a system model is employed to portray the dynamics of a rangeland as it would respond to climatic changes and different grazing intensities. This approach allows for an in

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23

Jessop, Peter. "Response of arid vegetation to cattle grazing and the development of indicators for range assessment with particular reference to the rangelands of northern South Australia /." Title page, contents and summary only, 1995. http://web4.library.adelaide.edu.au/theses/09AS/09asj58.pdf.

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24

Martin, Romina [Verfasser], Michael [Akademischer Betreuer] Bonkowski, Helmut [Akademischer Betreuer] Arndt, and Karin [Akademischer Betreuer] Frank. "Livelihood security of pastoralists in semi-arid rangelands under global change - A social-ecological modelling study / Romina Martin. Gutachter: Michael Bonkowski ; Helmut Arndt ; Karin Frank." Köln : Universitäts- und Stadtbibliothek Köln, 2013. http://d-nb.info/1038486408/34.

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25

Coetzee, Marisa. "Best land-use strategies towards sustainable biodiversity and land degradation management in semi-arid western rangelands in southern Africa, with special reference to ants as bio-indicators / Marisa Coetzee." Thesis, North-West University, 2006. http://hdl.handle.net/10394/3686.

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In South Africa, the unsustainable use of natural resources by domestic livestock has led to resource depletion and serious land degradation. Rangeland degradation, especially bush encroachment and soil erosion, is particularly acute in the North-West Province, where all districts show signs of desertification and a loss of biodiversity resulting in a deterioration of human and animal health. This has a major impact on livestock productivity and the economic viability of livestock farming with serious consequences for the livelihoods of pastoral communities. It is important to recognise ecolog

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26

Haveron, Sara Elizabeth. "Comparing small mammal assemblages between communal and commercial rangelands within a region of the Succulent Karoo, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/2367.

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Thesis (MScConsEcol (Conservation Ecology and Entomology))--Stellenbosch University, 2008.<br>The widespread ecological impacts of overgrazing by livestock within the Succulent Karoo have received considerable attention. Literature shows communal and commercial rangelands have been thoroughly studied, and vegetation responses have been investigated in an attempt to understand the effects of overgrazing. Regarding animal species, literature is in short supply. In a one-year study of small mammal assemblages, the effect of the rangelands, and subsequently vegetation, on small mammal assemb

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27

Badman, Francis John. "A comparison of the effects of grazing and mining on vegetation of selected parts of northern South Australia." Title page, table of contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phb136.pdf.

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Accompanying CD-ROM inside back cover, includes Appendices. Bibliography: leaves 242-266. This thesis examines the effects on vegetation at selected sites in northern South Australia of excluding various herbivores over a four and a half year period and of two intense but controlled grazing pulses over a six month period followed by an 18 month recovery period in a dune-swale land system. These changes are compared with changes recorded over an 11-year period at the Olympic Dam mine site. It found that short-term changes in vegetation revealed by ordination of periodical cover, density and spe

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28

Faramarzi, Marzban. "Rangeland vegetation in relation to management and environmental variables in semi-arid rangeland in western Iran." Göttingen Cuvillier, 2009. http://d-nb.info/993315119/04.

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29

Wellens, Jane. "Monitoring and modelling rangeland vegetation in Tunisia using satellite and meteorological data." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359492.

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30

Derry, Julian F. "Piospheres in semi-arid rangeland : consequences of spatially constrained plant-herbivore interactions." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/600.

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This thesis explains two aspects of animal spatial foraging behaviour arising as a direct consequence of animals' need to drink water: the concentration of animal impacts, and the response of animals to those impacts. In semi-arid rangelands, the foraging range of free-ranging large mammalian herbivores is constrained by the distribution of drinking water during the dry season. Animal impacts become concentrated around these watering sites according to the geometrical relationship between the available foraging area and the distance from water, and the spatial distribution of animal impacts be

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31

Aralova, Dildora, Kristina Toderich, Ben Jarihani, et al. "Environmental resilience of rangeland ecosystems: Assessment drought indices and vegetation trends on arid and semi-arid zones of Central Asia." SPIE, 2016. https://tud.qucosa.de/id/qucosa%3A35118.

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The Central Asian (CA) rangelands is a part of the arid and semi-arid ecological zones and spatial extent of drylands in CA (Tajikistan, Kazakhstan, Uzbekistan, Kyrgyzstan, and Turkmenistan) is vast. Projections averaged across a suite of climate models, as measured between 1950-2012 by Standardised Precipitation-Evapotranspiration Index (SPEI) estimated a progressively increasing drought risks across rangelands (Turkmenistan, Tajikistan and Uzbekistan) especially during late summer and autumn periods, another index: Potential Evapotranspiration (PET) indicated drought anomalies for Turkmenist

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32

Rath, Thomas. "Nutrition and productivity of milking cattle on a semi-arid rangeland in West Africa /." Stuttgart : Grauer, 1999. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009038584&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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33

Goff, Bruce Franklin. "Dynamics of canopy structure and soil surface cover in a semiarid grassland." Thesis, The University of Arizona, 1985. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1985_503_sip1_w.pdf&type=application/pdf.

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34

Wolfaard, Graeme. "An evaluation of techniques for monitoring rangeland health in semi-arid savannas in southern Africa." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/65521.

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Rangeland health plays an important role in increasing the connectivity/contact between wildlife, livestock and people. Communal rangelands throughout the savanna areas of South Africa are experiencing increasing magnitudes of pressure as they are reduced in size mainly due to a rapidly expanding human population. These pressures emanate in greater levels of degradation, which results in greater competition between livestock and wildlife across the interface for ecosystem services (such as grazing). Ultimately, this brings wildlife and livestock closer together and enhances the probability of

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35

Alchin, Mark David. "A test of landscape function theory in the semi-arid shrublands of Western Australia." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/1498.

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Australia’s rangelands encompass approximately 80% of the continent and generate significant wealth through a range of industries. The rangelands comprise four major ecosystem types, these are: grasslands, shrublands, woodlands and savanna. The ecological legacy of early pastoral development in most of Australia‟s semi-arid shrublands is largely one of degradation and desertification (Wilcox and McKinnon, 1974; Curry et al. 1994; McKeon et al. 2004; Mabbutt et al. 1963; Pringle and Tinley, 2001). Since the 1980‟s, there has been a slow and general shift by the pastoral industry towards sustain

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36

Kgosikoma, Olaotswe Ernest. "Understanding the savanna dynamics in relation to rangeland management systems and environmental conditions in semi-arid Botswana." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/5874.

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This thesis investigates the effects of rangeland management systems on savanna ecosystems under different environmental conditions in Botswana, Southern Africa. The soil sampling and vegetation assessment were conducted in twenty–three transects located in communal and ranching grazing lands across three sites. Pastoralists were also interviewed on vegetation change on their respective grazing lands. Soil texture, pH, bulk density and soil organic carbon differed between sites, but not between communal and ranching lands. Soil organic carbon was positively affected by soil clay content. The h

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37

Van, der Zweep Richard Adrian 1962. "Evaluation of the Water Erosion Prediction Project's watershed version hydrologic component on a semi-arid rangeland watershed." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/192067.

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Detailed evaluation of the Water Erosion Prediction Project (WEPP) Watershed Model hydrologic component was performed using hydrologic data from three small semi-arid watersheds located within the USDA Walnut Gulch Experimental Watershed in southeastern Arizona. Evaluation includes both calibration and validation procedures. Favorable results were obtained when the model was calibrated. The parameter estimation procedures within the WEPP model did not produce accurate estimates. Peak rainfall intensity simulated by the rainfall disaggregation model was less than the observed data, causing simu

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Whitaker, Martha Patricia Lee 1965. "Small-scale spatial variability of soil moisture and hydraulic conductivity in a semi-arid rangeland soil in Arizona." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/192081.

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The correlation scales of soil moisture and hydraulic conductivity were investigated within a 4.4 hectare semi-arid rangeland watershed using measurements obtained from time domain reflectometry and disc permeameters, respectively. Soil moisture measurements were collected at four different times in 1991 to yield a varied set of natural soil moisture conditions. Soil moisture was sampled over a 30 meter grid, two perpendicular transects at 5 meter intervals, once at 1 meter intervals, and once at intervals of — 0.10 m within a 1 xl meter plot. Variogram functions showed evidence of spatial cor

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39

Price, Gary Norman. "Assessing the growth performance of European olive (Olea europea L.) on Mount Weld pastoral station." Thesis, Curtin University, 2006. http://hdl.handle.net/20.500.11937/1862.

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This thesis describes the growth of European olive (Olea europaea L.) at three different trial sites located near Laverton, in the north-eastern Goldfields region of Western Australia. The local region comprises part ofthe rangelands area of Australia and has a semi-arid climate. The initial reason for planting olives was indirectly related to the rapid decrease in the local population and the economic downturn that resulted within that community during the late 1990's. This prompted an investigation into other possibilities for economic diversity for remote communities such as Laverton, which

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40

Govender, Saloshnie Simone. "A survey on external (Ixodidae) and gastrointestinal parasites of small ruminants on an arid communal rangeland in South Africa." University of Western Cape, 2020. http://hdl.handle.net/11394/7338.

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Magister Scientiae (Biodiversity and Conservation Biology)<br>Parasites pose a major constraint on livestock farming. Its impacts are represented as transmission of disease to humans and economic costs for prevention and treatment as well as loss in terms of; livestock mortality and, lowered productivity. Although the impacts of parasitic loads can be decreased through proper management, extensive management systems are depended on external factors such as rainfall and forage availability, which, in its absence, promote malnutrition and therefore parasite susceptibility.

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Biot, Y. "Forecasting productivity losses caused by sheet and rill erosion in semi arid rangeland : A case study from communal areas of Botswana." Thesis, University of East Anglia, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383247.

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Price, Gary Norman. "Assessing the growth performance of European olive (Olea europea L.) on Mount Weld pastoral station." Curtin University of Technology, Department of Environmental Biology, 2006. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=17424.

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This thesis describes the growth of European olive (Olea europaea L.) at three different trial sites located near Laverton, in the north-eastern Goldfields region of Western Australia. The local region comprises part ofthe rangelands area of Australia and has a semi-arid climate. The initial reason for planting olives was indirectly related to the rapid decrease in the local population and the economic downturn that resulted within that community during the late 1990's. This prompted an investigation into other possibilities for economic diversity for remote communities such as Laverton, which

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43

Ndhlovu, Thabisisani. "Impact of Prosopis (mesquite) invasion and clearing on ecosystem structure, function and agricultural productivity in semi-arid Nama Karoo rangeland, South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6751.

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Thesis (MScConEcol (Conservation Ecology and Entomology))--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: I evaluated the impact of Prosopis invasion and clearing on ecological structure, function and agricultural productivity in heavily grazed Nama Karoo rangeland on two sheep farms near the town of Beaufort West in the Western Cape Province of South Africa. My aims were to (1) determine the effects of invasion and clearing on rangeland vegetation composition, diversity (alien and indigenous species richness) and structure (alien and indigenous species cover), soil vegetatio

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Montague-Drake, Rebecca School of Biological Earth &amp Environmental Sciences UNSW. "Strategic management of artificial watering points for biodiversity conservation." Awarded by:University of New South Wales. School of Biological, Earth and Environmental Sciences, 2004. http://handle.unsw.edu.au/1959.4/30122.

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Since pastoralism began in Australia???s rangelands, the number of artificial watering points (AWPs) has increased dramatically, such that today, few areas of rangeland are further than 10 km from water. This increased availability of water has caused many ecological impacts. Unfortunately, such impacts are poorly understood in the context of an Australian conservation reserve, thus hindering strategic management. This study examined the spatial distribution of vertebrate (kangaroos, small mammals, lizards and avifauna) and vegetative variables around open AWPs as well as AWPs that have been c

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45

Walsh, Fiona Jane. "To hunt and to hold : Martu Aboriginal people's uses and knowledge of their country, with implications for co-management in Karlamilyi (Rudall River) National Park and the Great Sandy Desert, Western Australia." University of Western Australia. School of Plant Biology, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0127.

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[Truncated abstract] This ethnoecological study examines land uses by modern Martu Aboriginal people on their country. They occupy very remote settlementsParnngurr, Punmu and Kunawarritjiin the Great and Little Sandy Deserts. In 1990, their country included Crown Lands and Rudall River National Park. The study investigated the proposition that the knowledge and practices of Martu were of direct relevance to ecosystem processes and national park management. This research commenced in the wider Australian research context of the late 1980s early 90s when prevailing questions were about the r

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Vetter, Susan M. "Drought, change and resilience in South Africa's arid and semi-arid rangelands." 2009. http://hdl.handle.net/10962/d1006017.

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Droughts can have serious ecological and economic consequences and will pose an increasing challenge to rangeiand users as the global climate is changing. Finding ways to reduce ecological and economic impacts of drought should thus be a major research thrust. Resilience, defined as the amount of perturbation a social or ecological system can absorb without shifting to a qualitatively different state, has emerged as a prominent concept in ecosystem ecology and more recently as a conceptual framework for understanding and managing complex social-ecological systems. This paper discusses the appl

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Popp, Alexander [Verfasser]. "An integrated modelling approach for sustainable management of semi-arid and arid rangelands / Alexander Popp." 2007. http://d-nb.info/985911573/34.

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Jakoby, Oliver. "Risk management in semi-arid rangelands: Modelling adaptation to spatio-temporal heterogeneities." Doctoral thesis, 2011. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201112078601.

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Abstract:

Livestock grazing is the most important type of land-use in arid and semi-arid regions. In these regions, uncertain and highly variable climate conditions cause scarce and spatio-temporally variable resource availability. The major challenge to livestock grazing is the efficient utilisation of these resources without running the risk of degradation. Therefore, well adapted grazing strategies that consider both local environmental characteristics and the farmers' individual needs and perceptions are crucial for sustaining human livelihoods. Particularly, rotational grazing is presumed to render

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Müller, Birgit. "Sustainable grazing management in semi-arid rangelands. An ecological-economic modelling approach." Doctoral thesis, 2006. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2006032813.

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The loss of utilisable rangeland in semi-arid areas results in huge economic and social costs worldwide. Only adaptive management strategies are able to cope with these systems, which are largely driven by unpredictable and stochastic rainfall. Additionally they are characterized by strong feedback mechanisms between economic and ecological factors. This study aims to contribute to the identification of basic principles for sustainable grazing management. The approach emphasizes learning from existing management systems through the use of ecological-economic modelling. Two apparently successf

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Wilcock, Trove Elizabeth. "Use of selected fodder shrubs in the reclamation of degraded arid rangelands." Diss., 2010. http://hdl.handle.net/2263/27304.

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Aspects, which influence the choice of species for the rehabilitation of degraded arid areas, were studied. Although only one trial was established in the target area (transition area between the Succulent and Nama Karoo) seed of the indigenous species used was collected from this area. In the initial trials the effect of rumen digestion on the germination of fodder shrubs was observed. Species included the exotic Atriplex nummularia and Cassia sturtii, and the indigenous Sutherlandia microphylla, Tetragonia calycina, Tripteris sinuatum and Salsola glabrescens. No seed of T. calycina germinate

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