Pastoralism and Kalahari Rangeland Soils

Book chapter


Thomas, A.D., Elliott, D., Griffith, T.N.L. and Mairs, H. 2015. Pastoralism and Kalahari Rangeland Soils. in: Brearley, F. Q. and Thomas, A. D. (ed.) Land-Use Change Impacts On Soil Processes: Tropical And Savannah Ecosystems Wallingford CABI. pp. 122-132
AuthorsThomas, A.D., Elliott, D., Griffith, T.N.L. and Mairs, H.
EditorsBrearley, F. Q. and Thomas, A. D.
Abstract

This chapter presents field-based evidence of the changes in soil properties resulting from grazing-related disturbance and shrub encroachment in the south-west Kalahari. The objectives were: (i) to determine the impact of different grazing intensities on soil CO2 efflux, soil organic carbon (SOC) and chlorophyll a (a proxy for photosynthetic biomass); and (ii) to quantify differences in microclimate, SOC and soil CO2 efflux between open-grass sites, and the shrub/tree canopy. Experiments were conducted in an open fine-leaf savannah on Kalahari Sand soils in south-west Botswana. Vegetation cover is a mix of perennial (Eragrostis sp.; Poaceae) and annual (Schmidtiaspp.; Poaceae) grasses, woody shrubs (Grewia flava; Tiliaceae and Acacia mellifera; Leguminosae) and trees (predominantly A. erioloba; Leguminosae). Pastoral farming on unfenced communal areas is the principal livelihood activity across most of the Kalahari. The grazing land available to farmers without tenure is, however, shrinking as more is sold to private owners. This increases livestock stocking densities and communal grazing lands in Botswana typically exceed recommended carrying capacities. This leads to detrimental changes in soil properties, at least in the short term, and longer-term changes in the balance between shrubs and grasses. The research has shown that intensive grazing damages the biologically crusted sand surface resulting in a reduction in the amount of C fixed by autotrophic organisms. Light disturbance of the soil, however, does not appear to have an adverse effect on the ability of the organisms to photosynthesize and add C to the soil. Thus, managed grazing, where soils are only lightly disturbed, could help maintain a positive C balance in African drylands. Consequently, it is vital that land management decisions take a holistic view that includes consideration of how land use changes may affect the behaviour of human populations that rely directly on the managed land for their livelihoods.

Keywordsgrazing intensities ; soil properties change ; south-west Kalahari
Page range122-132
Year2015
Book titleLand-Use Change Impacts On Soil Processes: Tropical And Savannah Ecosystems
PublisherCABI
Place of publicationWallingford
ISBN 9781780642109
Digital Object Identifier (DOI)https://doi.org/10.1079/9781780642109.0122
Web address (URL)https://www.cabidigitallibrary.org/doi/10.1079/9781780642109.0122
http://www.scopus.com/inward/record.url?eid=2-s2.0-84961184210&partnerID=MN8TOARS
Output statusPublished
Publication dates01 Jan 2015
Publication process dates
Deposited24 Feb 2023
Permalink -

https://repository.derby.ac.uk/item/9x57y/pastoralism-and-kalahari-rangeland-soils

  • 24
    total views
  • 0
    total downloads
  • 0
    views this month
  • 0
    downloads this month

Export as

Related outputs

Changes in nitrogen functional genes and microbial populations in soil profiles of a peatland under different burning regimes
Allingham, S., Drake, S., Ramsey, A., Field, C.D., Nwaishi, F.C. and Elliott, D. 2024. Changes in nitrogen functional genes and microbial populations in soil profiles of a peatland under different burning regimes. Applied Soil Ecology. 200, pp. 1-13. https://doi.org/10.1016/j.apsoil.2024.105426
Bio-protection of cementitious materials below ground: The significance of natural soil environments
Hamza, O., Esaker, M., Abogdera, A. and Elliott, D. 2024. Bio-protection of cementitious materials below ground: The significance of natural soil environments. Developments in the Built Environment. 17, pp. 1-12. https://doi.org/10.1016/j.dibe.2024.100331
Bio-self-healing of cementitious mortar incubated within clay soil
Esaker, M., Hamza, O. and Elliott, D. 2023. Bio-self-healing of cementitious mortar incubated within clay soil. Journal of Materials in Civil Engineering. 36 (1). https://doi.org/10.1061/JMCEE7.MTENG-15713
Monitoring the bio-self-healing performance of cement mortar incubated within soil and water using electrical resistivity
Esaker, M., Hamza, O. and Elliott, D. 2023. Monitoring the bio-self-healing performance of cement mortar incubated within soil and water using electrical resistivity . Construction and Building Materials. 393, pp. 1-11. https://doi.org//10.1016/j.conbuildmat.2023.132109
Aspects of microbial communities in peatland carbon cycling under changing climate and land use pressures
Clare H. Robinson, Jonathan P. Ritson, Danielle M. Alderson, Ashish A. Malik, Robert I. Griffiths, Andreas Heinemeyer, Angela V. Gallego-Sala, Anne Quillet, Bjorn J.M. Robroek, Chris Evans, Dave M. Chandler, David R. Elliott, Emma L. Shutttleworth, Erik A. Lilleskov, Ezra Kitson, Filipa Cox, Fred Worrall, Gareth D. Clay, Ian Crosher, Jennifer Pratscher, Jon Bird, Jonathan Walker, Lisa R. Belyea, Marc G. Dumont, Nichole G.A. Bell, Rebekka R.E. Artz, Richard D. Bardgett, Roxane Andersen, Simon M. Hutchinson, Susan E. Page, Tim J. Thom, William Burn, Martin G. Evans and Elliott, D. 2023. Aspects of microbial communities in peatland carbon cycling under changing climate and land use pressures. Mires and Peat. 29, pp. 1-36. https://doi.org/10.19189/map.2022.omb.sta.2404
Microbial communities and biogeochemical functioning across peatlands in the Athabasca Oil Sands region of Canada: Implications for reclamation and management
Shaun M Allingham, Felix C Nwaishi, Roxane Andersen, Louis J Lamit and Elliott, D. 2022. Microbial communities and biogeochemical functioning across peatlands in the Athabasca Oil Sands region of Canada: Implications for reclamation and management. Land Degradation & Development. pp. 1-18. https://doi.org/10.1002/ldr.4549
Towards a microbial process-based understanding of the resilience of peatland ecosystem service provisioning – A research agenda
Ritson, J.P., Elliott, D., Alderson, D.M., Robinson, C.H, Burkitt, A.E., Heinemeyer, A., Stimson, A.G., Gallego-Sala, A., Harris, A., Quillet, A., Malik, A.A. and Cole, B. 2021. Towards a microbial process-based understanding of the resilience of peatland ecosystem service provisioning – A research agenda. Science of The Total Environment. 759, pp. 1-9. https://doi.org/10.1016/j.scitotenv.2020.143467
Self-healing of bio-cementitious mortar incubated within neutral and acidic soil
Esaker, Mohamed, Hamza, Omar, Souid, Adam and Elliott, D. 2021. Self-healing of bio-cementitious mortar incubated within neutral and acidic soil. Materials and Structures. 54 (2), pp. 1-16. https://doi.org/10.1617/s11527-021-01690-1
Soil biocrusts affect metabolic response to hydration on dunes in west Queensland, Australia
Thomas, Andrew D., Elliott, D., Hardcastle, David, Strong, Craig L., Bullard, Joanna, Webster, Richard and Lan, Shubin 2021. Soil biocrusts affect metabolic response to hydration on dunes in west Queensland, Australia. Geoderma. 405, pp. 1-10. https://doi.org/10.1016/j.geoderma.2021.115464
Methane production and oxidation potentials along a fen‐bog gradient from southern boreal to subarctic peatlands in Finland
Zhang, Hui, Tuittila, Eeva‐Stiina, Korrensalo, Aino, Laine, Anna M., Uljas, Salli, Welti, Nina, Kerttula, Johanna, Maljanen, Marja, Elliott, D., Vesala, Timo and Lohila, Annalea 2021. Methane production and oxidation potentials along a fen‐bog gradient from southern boreal to subarctic peatlands in Finland. Global Change Biology. 27, p. 4449–4464. https://doi.org/10.1111/gcb.15740
Active microbial ecosystem in glacier basal ice fuelled by iron and silicate comminution‐derived hydrogen
Toubes‐Rodrigo, Mario, Potgieter‐Vermaak, Sanja, Sen, Robin, Oddsdóttir, Edda S., Elliott, D. and Cook, Simon 2021. Active microbial ecosystem in glacier basal ice fuelled by iron and silicate comminution‐derived hydrogen. MicrobiologyOpen. 10 (4), pp. 1-13. https://doi.org/10.1002/mbo3.1200
The effect of soil incubation on bio self-healing of cementitious mortar
Hamza, Omar, Esaker, Mohamed, Elliott, D. and Souid, A. 2020. The effect of soil incubation on bio self-healing of cementitious mortar. Materials Today Communications. 24, pp. 1-9. https://doi.org/10.1016/j.mtcomm.2020.100988
Effects of vegetation on bacterial communities, carbon and nitrogen in dryland soil surfaces: implications for shrub encroachment in the southwest Kalahari
Thomas, Andrew D., Tooth, Stephen, Wu, Li and Elliott, D. 2020. Effects of vegetation on bacterial communities, carbon and nitrogen in dryland soil surfaces: implications for shrub encroachment in the southwest Kalahari. Science of The Total Environment. 764, pp. 1-11. https://doi.org/10.1016/j.scitotenv.2020.142847
Compositional homogeneity in the pathobiome of a new, slow-spreading coral disease
Sweet, Michael, Burian, Alfred, Fifer, James, Bulling, Mark, Elliott, D. and Raymundo, Laurie 2019. Compositional homogeneity in the pathobiome of a new, slow-spreading coral disease. Microbiome. 7 (1), pp. 1-14. https://doi.org/10.1186/s40168-019-0759-6
Surface stability in drylands is influenced by dispersal strategy of soil bacteria
Elliott, D., Thomas, Andrew D., Strong, Craig L. and Bullard, Joanna 2019. Surface stability in drylands is influenced by dispersal strategy of soil bacteria. Journal of Geophysical Research: Biogeosciences. pp. 1-16. https://doi.org/10.1029/2018jg004932
Experimental data of bio self-healing concrete incubated in saturated natural soil
Souid, A., Esaker, M., Elliott, D. and Hamza, Omar 2019. Experimental data of bio self-healing concrete incubated in saturated natural soil. Data in Brief. 26, pp. 1-11. https://doi.org/10.1016/j.dib.2019.104394
The influence of trees, shrubs, and grasses on microclimate, soil carbon, nitrogen, and CO2 efflux: Potential implications of shrub encroachment for Kalahari rangelands.
Thomas, Andrew David, Elliott, D., Dougill, Andrew John, Stringer, Lindsay Carman, Hoon, Stephen Robert and Sen, Robin 2018. The influence of trees, shrubs, and grasses on microclimate, soil carbon, nitrogen, and CO2 efflux: Potential implications of shrub encroachment for Kalahari rangelands. Land Degradation & Development. 29 (5), pp. 1-11. https://doi.org/10.1002/ldr.2918
Symbiotic microbes from marine invertebrates: Driving a new era of natural product drug discovery.
Blockley, Alix, Elliott, D., Roberts, Adam and Sweet, Michael J. 2017. Symbiotic microbes from marine invertebrates: Driving a new era of natural product drug discovery. Diversity. 9 (4), pp. 1-13. https://doi.org/10.3390/d9040049
Detecting macroecological patterns in bacterial communities across independent studies of global soils.
Ramirez, Kelly S., Knight, Christopher G., de Hollander, Mattias, Brearley, Francis Q., Constantinides, Bede, Cotton, Anne, Creer, Si, Crowther, Thomas W., Davison, John, Delgado-Baquerizo, Manuel, Dorrepaal, Ellen, Elliott, D., Fox, Graeme, Griffiths, Robert I., Hale, Chris, Hartman, Kyle, Houlden, Ashley, Jones, David L., Krab, Eveline J., Maestre, Fernando T., McGuire, Krista L., Monteux, Sylvain, Orr, Caroline H., van der Putten, Wim H., Roberts, Ian S., Robinson, David A., Rocca, Jennifer D., Rowntree, Jennifer, Schlaeppi, Klaus, Shepherd, Matthew, Singh, Brajesh K., Straathof, Angela L., Bhatnagar, Jennifer M., Thion, Cécile, van der Heijden, Marcel G. A. and de Vries, Franciska T. 2017. Detecting macroecological patterns in bacterial communities across independent studies of global soils. Nature Microbiology. 3, p. 189–196. https://doi.org/10.1038/s41564-017-0062-x
Sampling and Describing Glacier Ice
Toubes-Rodrigo, Mario, Cook, Simon J., Elliott, D. and Sen, Robin 2016. Sampling and Describing Glacier Ice. in: British Society for Geomorphology.
Arbuscular mycorrhizal community structure on co-existing tropical legume trees in French Guiana
Brearley, Francis Q., Elliott, D., Iribar, Amaia and Sen, Robin 2016. Arbuscular mycorrhizal community structure on co-existing tropical legume trees in French Guiana. Plant and Soil. 403, p. 253–265. https://doi.org/10.1007/s11104-016-2818-0
Bacterial and fungal communities in a degraded ombrotrophic peatland undergoing natural and managed re-vegetation
Elliott, D., Caporn, S., Nwaishi, F., Nilsson, R. H. and Sen, R. 2015. Bacterial and fungal communities in a degraded ombrotrophic peatland undergoing natural and managed re-vegetation. PLos ONE. 10 (5), pp. 1-20. https://doi.org/10.1371/journal.pone.0124726
Seasonal differences in soil CO2 efflux and carbon storage in Ntwetwe Pan, Makgadikgadi Basin, Botswana
Thomas, Andrew D., Dougill, Andrew J., Elliott, D. and Mairs, Helen 2014. Seasonal differences in soil CO2 efflux and carbon storage in Ntwetwe Pan, Makgadikgadi Basin, Botswana. Geoderma. 219-220. https://doi.org/10.1016/j.geoderma.2013.12.028
Niche partitioning of bacterial communities in biological crusts and soils under grasses, shrubs and trees in the Kalahari
Elliott, D., Thomas, Andrew David, Hoon, Steve R. and Sen, Robin 2014. Niche partitioning of bacterial communities in biological crusts and soils under grasses, shrubs and trees in the Kalahari. Biodiversity and conservation. 23, p. 1709–1733. https://doi.org/10.1007/s10531-014-0684-8
Diversity of Planktonic and Attached Bacterial Communities in a Phenol-Contaminated Sandstone Aquifer
Rizoulis, Athanasios, Elliott, D., Rolfe, Stephen. A, Thornton, Steven. F, Banwart, Steven. A, Pickup, Roger. W and Scholes, Julie. D 2013. Diversity of Planktonic and Attached Bacterial Communities in a Phenol-Contaminated Sandstone Aquifer. Microbial Ecology. 66, p. 84–95. https://doi.org/10.1007/s00248-013-0233-0