Agro-Climatically Zoning of Iran by UNESCO approach

Document Type : Research Paper

Authors

1 Dryland Agricultural Research Institute, Agricultural Research Education and Extension Organization (AREEO), Maragheh, Iran

2 Soil and Water Research Institute (SWRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran

3 ICARDA, Aleppo, Syria

Abstract

The dryland areas of Iran are characterized by considerable weather variability, as well as major abiotic stresses, in particular drought and cold. Differentiation of Agro-climatically diversity, zoning of different areas need to take into consideration for crop suitability and management. In view of the very diverse climates, an agroclimatic zone map is of vital importance to achieve this purpose. The objectives of this study are to present Agro-climatically zoning differences for crop suitability usages. In order to do this study to indicate easily available information to agricultural producers, researchers and decision-makers were carried out. Data of monthly averages of precipitation, temperature, relative humidity, total incoming solar radiation and wind speed from the main stations were collected in Iran and data of neighboring countries were gathered from 1973 to 1998 analyzed by using UNISCO approach.
Zoning maps on the basis of the three criteria: moisture regime, winter type and summer type indicated a total of  28 agro-climatic zones have been differentiated, from which only six (arid-cool winter-warm summer, arid-cool winter-very warm summer, arid-mild winter-very warm summer, semi arid-cold winter-warm summer, semi arid-cool winter-warm summer, and semi arid-cold winter-mild summer identified in where occupy nearly 90% areas of Iran. It can be concluded UNISCO approach is applicable and provide useful information for researcher and decision makers.

Keywords

Iranian Dryland Agronomy Journal
Volume 4, Issue 1 - Serial Number 7
September 2015
Pages 63-74

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