干旱区生态环境知识资源中心(Arid): Effects of agro-climatic indices on wheat yield in arid, semi-arid, and sub-humid regions of Iran

Arid

DOI	10.1007/s10113-023-02173-5
	Effects of agro-climatic indices on wheat yield in arid, semi-arid, and sub-humid regions of Iran
	Kheiri, Mohammad; Kambouzia, Jafar; Rahimi-Moghaddam, Sajjad; Moghaddam, Saghi Movahhed; Vasa, Laszlo; Azadi, Hossein
通讯作者	Kambouzia, J
来源期刊	REGIONAL ENVIRONMENTAL CHANGE
ISSN	1436-3798
EISSN	1436-378X
出版年	2024
卷号	24 期号:1
英文摘要	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.
英文关键词	Drought Grain filling period Impact analysis Climate adaptation Water stress Irrigation
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:001137953300003
WOS关键词	CLIMATE VARIABILITY ; HIGH-TEMPERATURE ; DROUGHT STRESS ; USE EFFICIENCY ; RHT ALLELES ; CROP ; EVAPOTRANSPIRATION ; IRRIGATION ; SYSTEMS ; PRECIPITATION
WOS类目	Environmental Sciences ; Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405261
推荐引用方式 GB/T 7714	Kheiri, Mohammad,Kambouzia, Jafar,Rahimi-Moghaddam, Sajjad,et al. Effects of agro-climatic indices on wheat yield in arid, semi-arid, and sub-humid regions of Iran[J],2024,24(1).
APA	Kheiri, Mohammad,Kambouzia, Jafar,Rahimi-Moghaddam, Sajjad,Moghaddam, Saghi Movahhed,Vasa, Laszlo,&Azadi, Hossein.(2024).Effects of agro-climatic indices on wheat yield in arid, semi-arid, and sub-humid regions of Iran.REGIONAL ENVIRONMENTAL CHANGE,24(1).
MLA	Kheiri, Mohammad,et al."Effects of agro-climatic indices on wheat yield in arid, semi-arid, and sub-humid regions of Iran".REGIONAL ENVIRONMENTAL CHANGE 24.1(2024).