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Aboveground Biomass Distribution in a Multi-Use Savannah Landscape in Southeastern Kenya: Impact of Land Use and Fences

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  • Edward Amara

    (Department of Geosciences and Geography, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
    Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland
    Sierra Leone Agricultural Research Institute, Tower Hill, Freetown PMB1313, Sierra Leone)

  • Hari Adhikari

    (Department of Geosciences and Geography, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
    Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland)

  • Janne Heiskanen

    (Department of Geosciences and Geography, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
    Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland)

  • Mika Siljander

    (Department of Geosciences and Geography, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
    Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland)

  • Martha Munyao

    (Department of Geosciences and Geography, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
    Biodiversity Research and Planning Directorate, Kenya Wildlife Service, P.O. Box 40241, Nairobi 00100, Kenya)

  • Patrick Omondi

    (Biodiversity Research and Planning Directorate, Kenya Wildlife Service, P.O. Box 40241, Nairobi 00100, Kenya)

  • Petri Pellikka

    (Department of Geosciences and Geography, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
    Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland)

Abstract

Savannahs provide valuable ecosystem services and contribute to continental and global carbon budgets. In addition, savannahs exhibit multiple land uses, e.g., wildlife conservation, pastoralism, and crop farming. Despite their importance, the effect of land use on woody aboveground biomass (AGB) in savannahs is understudied. Furthermore, fences used to reduce human–wildlife conflicts may affect AGB patterns. We assessed AGB densities and patterns, and the effect of land use and fences on AGB in a multi-use savannah landscape in southeastern Kenya. AGB was assessed with field survey and airborne laser scanning (ALS) data, and a land cover map was developed using Sentinel-2 satellite images in Google Earth Engine. The highest woody AGB was found in riverine forest in a conservation area and in bushland outside the conservation area. The highest mean AGB density occurred in the non-conservation area with mixed bushland and cropland (8.9 Mg·ha −1 ), while the lowest AGB density (2.6 Mg·ha −1 ) occurred in overgrazed grassland in the conservation area. The largest differences in AGB distributions were observed in the fenced boundaries between the conservation and other land-use types. Our results provide evidence that conservation and fences can create sharp AGB transitions and lead to reduced AGB stocks, which is a vital role of savannahs as part of carbon sequestration.

Suggested Citation

  • Edward Amara & Hari Adhikari & Janne Heiskanen & Mika Siljander & Martha Munyao & Patrick Omondi & Petri Pellikka, 2020. "Aboveground Biomass Distribution in a Multi-Use Savannah Landscape in Southeastern Kenya: Impact of Land Use and Fences," Land, MDPI, vol. 9(10), pages 1-24, October.
    • Handle: RePEc:gam:jlands:v:9:y:2020:i:10:p:381-:d:425461
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    References listed on IDEAS

    as
    1. Iain M. McNicol & Casey M. Ryan & Edward T. A. Mitchard, 2018. "Carbon losses from deforestation and widespread degradation offset by extensive growth in African woodlands," Nature Communications, Nature, vol. 9(1), pages 1-11, December.
    2. Jim Lynch & Mark Maslin & Heiko Balzter & Martin Sweeting, 2013. "Choose satellites to monitor deforestation," Nature, Nature, vol. 496(7445), pages 293-294, April.
    3. Jos Barlow & Filipe França & Toby A. Gardner & Christina C. Hicks & Gareth D. Lennox & Erika Berenguer & Leandro Castello & Evan P. Economo & Joice Ferreira & Benoit Guénard & Cecília Gontijo Leal & V, 2018. "The future of hyperdiverse tropical ecosystems," Nature, Nature, vol. 559(7715), pages 517-526, July.
    4. Z. S. Venter & M. D. Cramer & H.-J. Hawkins, 2018. "Drivers of woody plant encroachment over Africa," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    5. Jack A. Morgan & Daniel R. LeCain & Elise Pendall & Dana M. Blumenthal & Bruce A. Kimball & Yolima Carrillo & David G. Williams & Jana Heisler-White & Feike A. Dijkstra & Mark West, 2011. "C4 grasses prosper as carbon dioxide eliminates desiccation in warmed semi-arid grassland," Nature, Nature, vol. 476(7359), pages 202-205, August.
    6. Karl-Heinz Erb & Thomas Kastner & Christoph Plutzar & Anna Liza S. Bais & Nuno Carvalhais & Tamara Fetzel & Simone Gingrich & Helmut Haberl & Christian Lauk & Maria Niedertscheider & Julia Pongratz & , 2018. "Unexpectedly large impact of forest management and grazing on global vegetation biomass," Nature, Nature, vol. 553(7686), pages 73-76, January.
    7. Megan D. Barnes & Ian D. Craigie & Luke B. Harrison & Jonas Geldmann & Ben Collen & Sarah Whitmee & Andrew Balmford & Neil D. Burgess & Thomas Brooks & Marc Hockings & Stephen Woodley, 2016. "Wildlife population trends in protected areas predicted by national socio-economic metrics and body size," Nature Communications, Nature, vol. 7(1), pages 1-9, November.
    8. Liedloff, Adam C. & Cook, Garry D., 2007. "Modelling the effects of rainfall variability and fire on tree populations in an Australian tropical savanna with the Flames simulation model," Ecological Modelling, Elsevier, vol. 201(3), pages 269-282.
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