Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   AGRICULTURAL SCIENCES AND TECHNOLOGY   2006 , Volume 20 , Number 7; Page(s) 71 To 82.
 
Paper: 

EFFECTS OF CLIMATE CHANGE ON AGROCLIMATIC INDICES OF IRAN

 
 
Author(s):  NASSIRI MAHALLATI M., KOOCHEK A., KAMALI GH., MARASHIL H.
 
* 
 
Abstract: 
Agroclimatic indices are based on climatic factors effective on crop growth and development. Under climate change, these indices are also changed, therefore the pattern of these changes could be associated with crop growth and yield. The purpose of the present investigation was to calculate agroclimatic indices under climate change and compare the changes with the indices of the present climatic conditions and hence prediction changes on crop productivity that may occur. For this purpose 14 hey variables were disaggregated to 55 new variables which were indictors of agroclimatic seasonal changes. These indices were calculated for the present and the year 2025 and 2050. Results showed that the first occurrence of autumn freezing day will be delayed by 5-9 to 8-15 days for 2025 and 2050, respectively and the magnitude of these changes will be higher from the North to South and from West to East of the country. However, occurrence of last spring freezing day will be earlier by 4-8 and 7-12 days for these target years. However, again the spatial trend will increase from the West to the East and from the North to the South. Based on these two events, length of growth period will increase by 5-23 to 16-42 days for years 2025 and 2050, respectively.
 
Keyword(s): CLIMATE CHANGE, FREEZING DAYS, GROWING SEASON, IRAN
 
References: 
  • ندارد
 
  Yearly Visit 58
 
Latest on Blog
Enter SID Blog