Nighttime warming increases winter-sown wheat yield across major Chinese cropping regions

Zheng, Chengyan; Zhang, Jun; Jin, Chen; Chen, Chang; Tian, Yunlu; Deng, Aixing; Song, Zhenwei; Nawaz, Muhammad Mohsin; Groenigen, Kees Jan van; Zhang, Weijian

doi:10.1016/j.fcr.2017.09.014

Cited by 31 publications

(19 citation statements)

References 42 publications

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“…Similarly, previous studies reported that climatic warming might cause a substantial loss in Chinese wheat yields 41 , 42 . In contrast, some other studies suggested that nighttime warming benefit winter wheat production in China 18 , 19 . They attribute the positive effects of nighttime warming on winter wheat yields to more suitable temperature condition for winter wheat growth under warming treatment.…”

Section: Discussionmentioning

confidence: 80%

“…Winter wheat is sensitive to changes in temperature and rainfall derived from climate change 17 . The mean air temperature in the NCP is predicted to increase approximately 1.5 °C by 2050, mainly caused by the increase in nighttime temperature during winter and spring seasons, which will give rise to profound impact on wheat production and the soil GHGs emissions 16 , 18 , 19 . Furthermore, rainfall is predicted to increase during winter wheat growing season in this region 17 .…”

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confidence: 99%

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Rainfall increasing offsets the negative effects of nighttime warming on GHGs and wheat yield in North China Plain

Zhang

Shou

Maucieri

et al. 2021

Sci Rep

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The effects of nighttime warming and rainfall increasing on crop productivity and soil greenhouse gas emissions are few studied. This study was conducted with a field experiment to investigate the effects of nighttime warming, rainfall increasing and their interaction on wheat grain yield, methane (CH4) and nitrous oxide (N2O) emissions during a winter wheat growing season in the North China Plain (NCP). The results showed that nighttime warming and rainfall increasing significantly altered soil temperature and moisture, and thus the CH4 and N2O emissions from the soil. Nighttime warming significantly promoted soil CH4 uptake by 21.2% and increased soil N2O emissions by 22.4%. Rainfall increasing stimulated soil N2O emissions by 15.7% but decreased soil CH4 uptake by 18.6%. Nighttime warming significantly decreased wheat yield by 5.5%, while rainfall increasing enhanced wheat yield by 4.0%. The results indicate that the positive effect of nighttime warming on CH4 uptake and negative effect on wheat yield can be offset by rainfall increasing in the NCP. Generally, rainfall increasing significantly raised the global warming potential and greenhouse gas intensity induced by CH4 and N2O emissions. Overall, this study improves our understanding of agroecosystem C and N cycling in response to nighttime warming and rainfall increasing under future climate change.

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Section: Discussionmentioning

confidence: 80%

mentioning

confidence: 99%

Rainfall increasing offsets the negative effects of nighttime warming on GHGs and wheat yield in North China Plain

Zhang

Shou

Maucieri

et al. 2021

Sci Rep

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“…Winter wheat yield in 2003 was also lower than the long-term annual average. Related studies (Wang et al 2016(Wang et al , 2018Zheng et al 2017) have shown that, although the overall regional drought strength gradually decreased, the frequency of regional and periodic drought significantly increased, and severe droughts in the region often result in crop failure. The period of 2004-2006 witnessed lower intensity and shorter duration droughts and the winter wheat production during that period persistently increased to the long-term annual mean level.…”

Section: Correlations Between the Drought Severity Index (Dsi) And Wimentioning

confidence: 99%

Impact of Droughts on Winter Wheat Yield in Different Growth Stages during 2001–2016 in Eastern China

Qiang

Sun

et al. 2018

Int J Disaster Risk Sci

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Remote sensing can provide near real-time and dynamic monitoring of drought. The drought severity index (DSI), based on the normalized difference vegetation index (NDVI) and evapotranspiration/potential evapotranspiration (ET/PET), has been used for drought monitoring. This study examined the relationship between the DSI and winter wheat yield for prefecture-level cities in five provinces of eastern China during 2001-2016. We first analyzed the spatial and temporal distribution of droughts in the study area. Then the correlation coefficient between drought-affected area and detrended yield of winter wheat was quantified and the impact of droughts of different intensities on winter wheat yield during different growth stages was investigated. The results show that incipient drought during the wintering period has no significant impact on the yield of winter wheat, while moderate drought in the same period can reduce yield. Drought affects winter wheat yield significantly during the flowering and filling stages. Droughts of higher intensity have more significant negative effects on the yield of winter wheat. Monitoring of droughts and irrigation is critical during these periods to ensure normal yield of winter wheat. This study has important practical implications for the planning of irrigation and food security.

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“…Increased heat stress generally reduces crops yield as temperature is a critical factor affecting crops growth and development (Abdelrahman et al, 2020; Edreira et al, 2014; Telfer et al, 2018; Wang et al, 2018). Many studies indicated that climatic warming resulted in the decline of wheat productivity (Liu et al, 2014; Lobell et al, 2011; Zhang et al, 2013; Zheng et al, 2017). A study reported that each 1.0°C increase in mean temperature resulted in a 3%–10% reduction in wheat yield in China (You et al, 2009), whereas another study predicted that a 1.0°C increase in global average temperature might reduce wheat yield by 4%–6% (Asseng et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Impact of increased temperature on spring wheat yield in northern China

Gao

et al. 2021

Food and Energy Security

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Global warming has been reported to cause reductions in crop yields. However, it was suggested that warming temperature might benefit crop productivity in some cool areas at high latitude. In this study, we conducted a 17‐year field experiment (2002–2018) on spring wheat in Inner Mongolia. Temperature changes during each growth stage of spring wheat were investigated. Responses of spring wheat yield to temperature changes during the specific growing stages were evaluated. Average annual maximum temperature (Tmax) and minimum temperature (Tmin) significantly increased over the past 17 years. However, Tmax did not show obvious increase trend during spring wheat growing seasons (p = 0.0672). Furthermore, Tmax also had no distinct change before or after anthesis. Tmin significantly increased during the whole growing season, as well as in pre‐ and post‐anthesis stages. Correlation analysis indicated that Tmax in the entire growing season and post‐anthesis did not affect spring wheat yield, but high Tmax during pre‐anthesis can improve grain yield. The Tmin during the life cycle and pre‐anthesis both had positive relationship with grain yield. Moreover, elevated temperature from seedling to stem elongation can benefit tiller formation and thus increasing spike number, which contributed to the significant yield increase (p = 0.0093). Overall, climate warming affect spring wheat yield in cool area, and increasing temperature that was below the optimum temperature can benefit wheat productivity.

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Nighttime warming increases winter-sown wheat yield across major Chinese cropping regions

Cited by 31 publications

References 42 publications

Rainfall increasing offsets the negative effects of nighttime warming on GHGs and wheat yield in North China Plain

Rainfall increasing offsets the negative effects of nighttime warming on GHGs and wheat yield in North China Plain

Impact of Droughts on Winter Wheat Yield in Different Growth Stages during 2001–2016 in Eastern China

Impact of increased temperature on spring wheat yield in northern China

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