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Modeling and improving Ethiopian pasture systems.

S G Parisi1, G Cola2, G Gilioli3

  • 1DiSAA - Università degli Studi di Milano, via Celoria 2, 20133, Milan, Italy. meteoclima@hotmail.it.

International Journal of Biometeorology
|January 5, 2018
PubMed
Summary
This summary is machine-generated.

Ethiopia's pasture production was simulated using a dynamic model, revealing key climate and nutrient limitations. Results aid in agro-ecological zoning for better livestock management.

Keywords:
Ethiopian highlandGrassland production modelLivestockMonsoon climate

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Area of Science:

  • Agricultural Science
  • Ecology
  • Climate Science

Background:

  • Ethiopia's pasture production is crucial for livestock, influenced by a tropical monsoon climate.
  • Grassland senescence significantly impacts forage nutritional value for livestock.

Purpose of the Study:

  • To simulate pasture production in Ethiopia using a dynamic model.
  • To identify key limiting factors and climate cycles affecting pasture yield.
  • To provide data for agro-ecological zoning of Ethiopian rangelands.

Main Methods:

  • A dynamic model driven by solar radiation was employed.
  • Simulations incorporated limitations such as water stress, nutrients, and temperature.
  • Data from 1982-2009, including gridded daily rainfall and temperature, were utilized.

Main Results:

  • Yearly mean dry matter yield ranged from 1.8 to 2.6 t/ha.
  • Pasture production distribution across 1494 cells showed a right-skewed pattern (0-7 t/ha).
  • Key limiting factors identified include solar radiation, precipitation, and temperature.

Conclusions:

  • The study highlights the spatial variability of pasture production in Ethiopia.
  • Understanding climate variability and limiting factors is essential for sustainable pasture management.
  • Results support the agro-ecological zoning of Ethiopian territories for improved land use planning.