Abstract
Abstract This study aimed to assess the impact of climate change on spring wheat production and to provide more accurate projections by directly investigating the effect of climate change on crop development and yield. Based on ground observation data from 1981 (1986 Dingxi) to 2020 in four case areas in northwest China, and the relationships among spring wheat growth, yield, and climate factors were analyzed and determined. The results showed that the extreme arid (Dunhuang) and semiarid regions (Dingxi) tend to be warmer and wetter, whereas arid regions (Wuwei) and semihumid regions (Linxia) tend to be warmer and drier. Correlation analysis indicated that yield of spring wheat in Wuwei, Dingxi, and Linxia Stations increased significantly. The decrease in the number of days (≥30 °C) during the growth period at Wuwei resulted in a significant yield increase in the past 40 years. At Dingxi, yield increased over the last 35 years due to the significant increases in precipitation during growth, the number of grains per panicle, and thousand‐grain weight, and the decrease in infertile spikelets. Further increase in global temperature and changes in future precipitation patterns will likely affect spring wheat production in northwest China.
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Claims 10
Claim · model-written summary
Dunhuang and Dingxi became warmer and wetter.
Not reportedTaxon
Verbatim
e0“extreme arid (Dunhuang) and semiarid regions (Dingxi) tend to be warmer and wetter”
Claim · model-written summary
Wuwei and Linxia became warmer and drier.
Not reportedTaxon
Verbatim
e0“arid regions (Wuwei) and semihumid regions (Linxia) tend to be warmer and drier”
Claim · model-written summary
Spring wheat yield increased significantly at Wuwei.
- Taxon
- spring wheat
Triticum aestivume0 - Outcome
- yielde0
- Direction
- increasede0
- Setting
- Wuweie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield of spring wheat in Wuwei, Dingxi, and Linxia Stations increased significantly”
Claim · model-written summary
Spring wheat yield increased significantly at Dingxi.
- Taxon
- spring wheatTriticum aestivume0
- Outcome
- yielde0
- Direction
- increasede0
- Setting
- Dingxie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield of spring wheat in Wuwei, Dingxi, and Linxia Stations increased significantly”
Claim · model-written summary
Spring wheat yield increased significantly at Linxia.
- Taxon
- spring wheatTriticum aestivume0
- Outcome
- yielde0
- Direction
- increasede0
- Setting
- Linxiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield of spring wheat in Wuwei, Dingxi, and Linxia Stations increased significantly”
Claim · model-written summary
Fewer days of at least 30 °C during growth at Wuwei were associated with a significant yield increase.
- Taxon
- spring wheatTriticum aestivumt0
- Outcome
- yielde0
- Direction
- increasee0
- Qualifier
- decrease in the number of days (≥30 °C)e0
- Setting
- Wuweie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat”
e0“The decrease in the number of days (≥30 °C) during the growth period at Wuwei resulted in a significant yield increase in the past 40 years.”
Claim · model-written summary
At Dingxi, increased growth-period precipitation was linked to increased yield.
- Taxon
- spring wheatTriticum aestivumt0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- significant increases in precipitation during growthe0
- Setting
- Dingxie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat”
e0“At Dingxi, yield increased over the last 35 years due to the significant increases in precipitation during growth”
Claim · model-written summary
At Dingxi, grain number per panicle increased significantly.
- Taxon
- spring wheatTriticum aestivumt0
- Outcome
- number of grains per paniclee0
- Direction
- increasese0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat”
e0“the significant increases in precipitation during growth, the number of grains per panicle, and thousand‐grain weight”
Claim · model-written summary
At Dingxi, thousand-grain weight increased significantly.
- Taxon
- spring wheatTriticum aestivumt0
- Outcome
- thousand‐grain weighte0
- Direction
- increasese0
- Setting
- Dingxie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat”
e0“At Dingxi, yield increased over the last 35 years due to the significant increases in precipitation during growth, the number of grains per panicle, and thousand‐grain weight”
Claim · model-written summary
At Dingxi, infertile spikelets decreased.
- Taxon
- spring wheatTriticum aestivumt0
- Outcome
- infertile spikeletse0
- Direction
- decreasee0
- Setting
- Dingxie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“spring wheat”
e0“At Dingxi, yield increased over the last 35 years due to the significant increases in precipitation during growth, the number of grains per panicle, and thousand‐grain weight, and the decrease in infertile spikelets.”