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The negative impact...
The negative impact of increasing temperatures on rice yields in southern China
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Song, Y. (author)
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Wang, C. (author)
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- Linderholm, Hans W., 1968 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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Fu, Y. (author)
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Cai, W. (author)
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Xu, J. (author)
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Zhuang, L. (author)
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Wu, M. (author)
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Shi, Y. (author)
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Wang, G. (author)
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- Chen, Deliang, 1961 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- English.
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In: Science of the Total Environment. - : Elsevier BV. - 0048-9697. ; 820
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Abstract
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- China is the main producer and consumer of rice in the world, and rice is a major staple food grain for more than half of the world's population. Reduced rice yields caused by climate factors not only affect the food security of China, but also has global repercussions. Thus, it is vital to assess the potential impact of climate warming on rice production. Using daily temperature and phenology records of double-cropping rice from agro-meteorological stations in southern China, the influence of increased temperatures on rice yields during the last several decades was investigated. Associated with an increase in average daily mean temperatures by 0.7 °C during 2009–2018 relative to 1961–1970, Killing Degree Days (KDD), an indicator for damaging high temperature, for early and late rice increased by 110% and 88.6% respectively. However, the negative influence of KDDs on yields was mainly evident for early rice, because high temperatures occurred frequently during the sensitive grain-filling period; early-rice yields showed a decrease of 8% per 1 °C increase in mean growing season air temperature. Late rice yields, on the other hand, were not as negatively influenced by increasing temperatures as early rice, because high temperature usually occurred during the vegetative growth stage, which was not so sensitive to high temperature. © 2022 The Authors
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- China
- Climate change
- Killing degree days
- Rice production
- Atmospheric temperature
- Food supply
- Grain (agricultural product)
- Degree days
- Food grain
- Highest temperature
- Increasing temperatures
- Killing degree day
- Rice yield
- Southern China
- Staple food
- air temperature
- article
- grain filling
- growing season
- growth curve
- high temperature
- nonhuman
- phenology
- plant yield
- rice
- vegetative growth
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Song, Y.
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Wang, C.
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Linderholm, Hans ...
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Fu, Y.
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Cai, W.
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Xu, J.
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show more...
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Zhuang, L.
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Wu, M.
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Shi, Y.
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Wang, G.
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Chen, Deliang, 1 ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
- Articles in the publication
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Science of the T ...
- By the university
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University of Gothenburg