Estimating Grazing Potentials in Sudan Using Daily Carbon Allocation in Dynamic Vegetation Model☆

ABSTRACT Livestock production is important for local food security and as a source of income in sub-Saharan Africa. The human population of the region is expected to double by 2050, and at the same time climate change is predicted to negatively affect grazing resources vital to livestock. Therefore, it is essential to model the potential grazing output of sub-Saharan Africa in both present and future climatic conditions. Standard tools to simulate plant productivity are dynamic vegetation models (DVMs). However, as they typically allocate carbon to plant growth at an annual time step, they have a limited capability to simulate grazing. Here, we present a novel implementation of daily carbon allocation for grasses into the DVM Lund-Potsdam-Jena General Ecosystem Simulator (LPJGUESS) and apply this to study the grazing potential for the Kordofan region in Sudan. The results show a latitudinal split in grazing resources, where the northern parts of Kordofan are unexploited and southern parts are overused. Overall, we found that the modeled grazing potential of Kordofan is 16% higher than the livestock usage reported in the Food and Agricultural Organization of the United Nations, indicating a mitigation potential in the form of a spatial relocation of the herds.

• Publication year

  2018

• Venue

  Rangeland Ecology & Management

• Publication date

  2018-11-01

• Fields of study

  Agricultural and Food Sciences, Environmental Science

• Identifiers
  DOI 10.1016/j.rama.2018.06.006
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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  2016influential reference
• Pasture harvest, carbon sequestration and feeding potentials under different grazing intensities

  2015cited by this paper
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  2014influential reference
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  2014influential reference
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  2011influential reference
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  2011influential reference
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  2008influential reference
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  1995cited by this paper
• Desertification in the Sudan: causes, effects and policy options

  1994cited by this paper
• Relevance of Mobility to Rangeland Utilisation: The Baggara Transhumant of Southern Kordofan

  1993cited by this paper
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  1985cited by this paper
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  1983influential reference
• Temporal Changes in Livestock Numbers and Patterns of Transhumance in Southern Sudan

  1977cited by this paper

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  2018cites this paper