Effects of agro-climatic indices on wheat yield in arid, semi-arid, and sub-humid regions of Iran

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F24%3A100883" target="_blank" >RIV/60460709:41330/24:100883 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/s10113-023-02173-5" target="_blank" >https://doi.org/10.1007/s10113-023-02173-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10113-023-02173-5" target="_blank" >10.1007/s10113-023-02173-5</a>

Result language

angličtina

Original language name

Effects of agro-climatic indices on wheat yield in arid, semi-arid, and sub-humid regions of Iran

Original language description

This study aimed to analyze the impact of variations of drought-related agro-climatic indices including cumulative precipitation, cumulative potential evapotranspiration, cumulative actual evapotranspiration, cumulative crop evapotranspiration, cumulative water stress, and cumulative water deficit during nine consecutive phenological stages (emergence to physiological maturity) on wheat yield in arid, semi-arid, and sub-humid regions of Iran during 1999-2018. Principal component analysis was used to recognize the main components that largely explained the variations of agro-climatic indices during different stages of the crop growing period. Then, the relationships between the major components, retrieved from principal component analysis, and the crop yield were assessed. Wheat irrigation requirements were also calculated to investigate the regional water supply-demand patterns during the crop growing period. The findings highlighted increasing impacts of cumulative precipitation, cumulative potential evapotranspiration, cumulative crop evapotranspiration, and cumulative actual evapotranspiration and decreasing impacts of cumulative water stress and deficit on wheat yield, particularly in arid and semi-arid regions. The crop yield was more affected by variations of the agro-climatic indices during the reproductive phase than the vegetative phase. Accordingly, booting to flowering in the arid region, flowering in the sub-humid region, and stem elongation to booting in the semi-arid region were the most sensitive periods of wheat to agro-climatic indices variations. Wheat irrigation requirements in arid and semi-arid regions started earlier than in the sub-humid region. From the findings, it was concluded that adjusting the irrigation schedule based on wheat irrigation requirements during the wheat growing period could help farmers to achieve a favorable wheat yield.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

<a href="/en/project/SS04030013" target="_blank" >SS04030013: Center for Socio-Economic Research on Environmental Policy Impact Assessment</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Regional Environmental Change

ISSN

1436-3798

e-ISSN

1436-3798

Volume of the periodical

24

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

15

Pages from-to

1-15

UT code for WoS article

001137953300003

EID of the result in the Scopus database

2-s2.0-85181753558