EFFECTS OF CLIMATE CHANGE ON AGROCLIMATIC INDICES OF IRAN

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NASSIRI MAHALLATI M.; KOOCHEK A.; KAMALI GH.; MARASHIL H.

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Journal: Agricultural Sciences and Technology Year:2006 | Volume:20 | Issue:7 Page(s): 71-82

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Title

EFFECTS OF CLIMATE CHANGE ON AGROCLIMATIC INDICES OF IRAN

Author(s)

NASSIRI MAHALLATI M. | KOOCHEK A. | KAMALI GH. | MARASHIL H. | Issue Writer Certificate

Keywords

CLIMATE CHANGE

FREEZING DAYS

GROWING SEASON

IRAN

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.

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APA: Copy

NASSIRI MAHALLATI, M., KOOCHEK, A., KAMALI, GH., & MARASHIL, H.. (2006). EFFECTS OF CLIMATE CHANGE ON AGROCLIMATIC INDICES OF IRAN. AGRICULTURAL SCIENCES AND TECHNOLOGY, 20(7), 71-82. SID. https://sid.ir/paper/576408/en

Vancouver: Copy

NASSIRI MAHALLATI M., KOOCHEK A., KAMALI GH., MARASHIL H.. EFFECTS OF CLIMATE CHANGE ON AGROCLIMATIC INDICES OF IRAN. AGRICULTURAL SCIENCES AND TECHNOLOGY[Internet]. 2006;20(7):71-82. Available from: https://sid.ir/paper/576408/en

IEEE: Copy

M. NASSIRI MAHALLATI, A. KOOCHEK, GH. KAMALI, and H. MARASHIL, “EFFECTS OF CLIMATE CHANGE ON AGROCLIMATIC INDICES OF IRAN,” AGRICULTURAL SCIENCES AND TECHNOLOGY, vol. 20, no. 7, pp. 71–82, 2006, [Online]. Available: https://sid.ir/paper/576408/en

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