Agroclimatic zonation of Tigray region of Ethiopia based on aridity index and traditional agro-climatic zones

Authors

  • H. HAFTOM 1Institute of Climate and Society, Mekelle University, Tigray, Ethiopia
  • A. HAFTU Institute of Climate and Society, Mekelle University, Tigray, Ethiopia
  • K. GOITOM Institute of Climate and Society, Mekelle University, Tigray, Ethiopia
  • H. MESERET Tigray Agricultural Marketing Promotion Agency, Mekelle, Tigray, Ethiopia

DOI:

https://doi.org/10.54386/jam.v21i2.229

Keywords:

Rainfall,, potential evapotranspiration, aridity index, agro-climatic zone

Abstract

The aim of this study was to identify the agroclimatic zones of Tigray region based on aridity index and traditional agroclimatic zone using 37-year (1981-2017) spatial climate data downloaded for Tigray region from Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) for rainfall and from Enhancing National Climate Services (ENACTS) data for temperature. Arc map 10.3 was used for mapping of all climatic variables and zonation of agro-climatic zones. Potential evapotranspiration (PET) was computed based on Hargreaves formula and the aridity index was computed. Besides, the digital elevation model was downloaded from ASTER data. The aridity map of Tigray divided into three index zones (0.03-0.2, 0.2–0.5 and 0.5–0.65) and five traditional agro-climate zones (<1500,1500-2000,2000- 2500, 2500-3000, >3000 m.a.s.l.) were overlaid, which divided entire region of Tigray into fifteen agroclimatic zones. Hot semi-arid, warm semi-arid, tepid semi-arid and hot arid were the dominant zones in the region.

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Published

01-06-2019

How to Cite

H. HAFTOM, A. HAFTU, K. GOITOM, & H. MESERET. (2019). Agroclimatic zonation of Tigray region of Ethiopia based on aridity index and traditional agro-climatic zones. Journal of Agrometeorology, 21(2), 176–181. https://doi.org/10.54386/jam.v21i2.229

Issue

Vol. 21 No. 2 (2019): June

Section

Research Paper

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