International Journal of Biometeorology

, Volume 55, Issue 3, pp 387–401

Effects of precipitation and temperature on crop production variability in northeast Iran

  • Mohammad Bannayan
  • Sajad Sadeghi Lotfabadi
  • Sarah Sanjani
  • Azadeh Mohamadian
  • Majid Aghaalikhani
Original Paper

DOI: 10.1007/s00484-010-0348-7

Cite this article as:
Bannayan, M., Sadeghi Lotfabadi, S., Sanjani, S. et al. Int J Biometeorol (2011) 55: 387. doi:10.1007/s00484-010-0348-7

Abstract

Climate variability adversely impacts crop production and imposes a major constraint on farming planning, mostly under rainfed conditions, across the world. Considering the recent advances in climate science, many studies are trying to provide a reliable basis for climate, and subsequently agricultural production, forecasts. The El Niño-Southern Oscillation phenomenon (ENSO) is one of the principle sources of interannual climatic variability. In Iran, primarily in the northeast, rainfed cereal yield shows a high annual variability. This study investigated the role played by precipitation, temperature and three climate indices [Arctic Oscillation (AO), North Atlantic Oscillation (NAO) and NINO 3.4] in historically observed rainfed crop yields (1983–2005) of both barley and wheat in the northeast of Iran. The results revealed differences in the association between crop yield and climatic factors at different locations. The south of the study area is a very hot location, and the maximum temperature proved to be the limiting and determining factor for crop yields; temperature variability resulted in crop yield variability. For the north of the study area, NINO 3.4 exhibited a clear association trend with crop yields. In central locations, NAO provided a solid basis for the relationship between crop yields and climate factors.

Keywords

Climate changeClimate variabilityRainfed crop productionWeather and crops

Copyright information

© ISB 2010

Authors and Affiliations

  • Mohammad Bannayan
    • 1
  • Sajad Sadeghi Lotfabadi
    • 1
  • Sarah Sanjani
    • 1
  • Azadeh Mohamadian
    • 2
  • Majid Aghaalikhani
    • 3
  1. 1.Faculty of AgricultureFerdowsi University of MashhadMashhadIran
  2. 2.Climate Research CenterKhorasanMashhadIran
  3. 3.Tarbiat Modares UniversityTehranIran