The impact of intra-annual temperature fluctuations on agricultural temperature extreme events and attribution analysis in mainland China.
Daily temperature variations, which tend to exhibit non-constant and non-linear patterns, are often characterized by intra-annual fluctuations that cause severe and frequent extreme temperature events that have an enormous impact on agricultural production. However, the quantitative relationship bet...
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ftpubmed:39059648 2024-09-09T19:28:32+00:00 The impact of intra-annual temperature fluctuations on agricultural temperature extreme events and attribution analysis in mainland China. Han, Jiahao Fang, Shibo Wang, Xinyu Zhuo, Wen Yu, Yanru Peng, Xiaofeng Zhang, Yuanda 2024 Jul 25 https://doi.org/10.1016/j.scitotenv.2024.174904 https://pubmed.ncbi.nlm.nih.gov/39059648 eng eng Elsevier Science https://doi.org/10.1016/j.scitotenv.2024.174904 https://pubmed.ncbi.nlm.nih.gov/39059648 Copyright © 2024 Elsevier B.V. All rights reserved. Sci Total Environ ISSN:1879-1026 Volume:949 Agricultural extreme temperature events Attribution analysis Climate indicators Intra-annual temperature fluctuations Journal Article 2024 ftpubmed https://doi.org/10.1016/j.scitotenv.2024.174904 2024-07-28T16:03:00Z Daily temperature variations, which tend to exhibit non-constant and non-linear patterns, are often characterized by intra-annual fluctuations that cause severe and frequent extreme temperature events that have an enormous impact on agricultural production. However, the quantitative relationship between intra-annual temperature fluctuations and extreme agricultural temperatures remains unclear. We aimed to investigate intra-annual temperature fluctuation changes based on daily meteorological data in nine agricultural regions across China from 1960 to 2022 and quantify the impact of temperature fluctuations on extreme agricultural temperatures during crop growth periods. Moreover, an attribution analysis of intra-annual temperature fluctuations was performed using climate indicators. Main results showed: (1) intra-annual temperature fluctuations in each region exhibited a certain decrease, and the spatial distribution showed a significant decreasing trend from north to south. (2) Intra-annual temperature fluctuations have moderately exacerbated extreme agricultural hot and cold events during growth periods, which have brought serious challenges to agriculture owing to advances in phenology and unsynchronized rain heat compared to climate warming. The proportion of positive correlations between temperature fluctuations and extreme temperatures was much larger than that of the negative correlations in nearly all of China (percentage of stations: 20.5 %), and the negative correlation was concentrated only in southern China (percentage of stations: 3.7 %). (3) Hydrothermal coupling and elevation moderately affected intra-annual temperature fluctuations. Average temperature, relative humidity, and elevation had negative correlations with intra-annual temperature fluctuations, the correlation coefficients (R) were - 0.62, -0.42 and - 0.12, respectively; however, reference crop evapotranspiration (ET0) exhibited a positive correlation (R: 0.29), and all reached highly significant levels (P < 0.01). Climate indicators mainly affected intra-annual temperature fluctuations in eastern China. Specifically, the El Niño-Southern Oscillation (ENSO), unstable Asia Polar Vortex, and increased Western Pacific Subtropical High have enhanced temperature fluctuations. The deepened East Asian Trough and Arctic Oscillation of the negative phase weakened the intra-annual temperature fluctuations. This investigation highlights the crucial function of temperature fluctuation in intensifying extreme temperature occurrences and provides a more reasonable scientific foundation for extreme event prediction and agricultural planning. Article in Journal/Newspaper Arctic PubMed Central (PMC) Arctic Pacific Science of The Total Environment 949 174904 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Agricultural extreme temperature events Attribution analysis Climate indicators Intra-annual temperature fluctuations |
spellingShingle |
Agricultural extreme temperature events Attribution analysis Climate indicators Intra-annual temperature fluctuations Han, Jiahao Fang, Shibo Wang, Xinyu Zhuo, Wen Yu, Yanru Peng, Xiaofeng Zhang, Yuanda The impact of intra-annual temperature fluctuations on agricultural temperature extreme events and attribution analysis in mainland China. |
topic_facet |
Agricultural extreme temperature events Attribution analysis Climate indicators Intra-annual temperature fluctuations |
description |
Daily temperature variations, which tend to exhibit non-constant and non-linear patterns, are often characterized by intra-annual fluctuations that cause severe and frequent extreme temperature events that have an enormous impact on agricultural production. However, the quantitative relationship between intra-annual temperature fluctuations and extreme agricultural temperatures remains unclear. We aimed to investigate intra-annual temperature fluctuation changes based on daily meteorological data in nine agricultural regions across China from 1960 to 2022 and quantify the impact of temperature fluctuations on extreme agricultural temperatures during crop growth periods. Moreover, an attribution analysis of intra-annual temperature fluctuations was performed using climate indicators. Main results showed: (1) intra-annual temperature fluctuations in each region exhibited a certain decrease, and the spatial distribution showed a significant decreasing trend from north to south. (2) Intra-annual temperature fluctuations have moderately exacerbated extreme agricultural hot and cold events during growth periods, which have brought serious challenges to agriculture owing to advances in phenology and unsynchronized rain heat compared to climate warming. The proportion of positive correlations between temperature fluctuations and extreme temperatures was much larger than that of the negative correlations in nearly all of China (percentage of stations: 20.5 %), and the negative correlation was concentrated only in southern China (percentage of stations: 3.7 %). (3) Hydrothermal coupling and elevation moderately affected intra-annual temperature fluctuations. Average temperature, relative humidity, and elevation had negative correlations with intra-annual temperature fluctuations, the correlation coefficients (R) were - 0.62, -0.42 and - 0.12, respectively; however, reference crop evapotranspiration (ET0) exhibited a positive correlation (R: 0.29), and all reached highly significant levels (P < 0.01). Climate indicators mainly affected intra-annual temperature fluctuations in eastern China. Specifically, the El Niño-Southern Oscillation (ENSO), unstable Asia Polar Vortex, and increased Western Pacific Subtropical High have enhanced temperature fluctuations. The deepened East Asian Trough and Arctic Oscillation of the negative phase weakened the intra-annual temperature fluctuations. This investigation highlights the crucial function of temperature fluctuation in intensifying extreme temperature occurrences and provides a more reasonable scientific foundation for extreme event prediction and agricultural planning. |
format |
Article in Journal/Newspaper |
author |
Han, Jiahao Fang, Shibo Wang, Xinyu Zhuo, Wen Yu, Yanru Peng, Xiaofeng Zhang, Yuanda |
author_facet |
Han, Jiahao Fang, Shibo Wang, Xinyu Zhuo, Wen Yu, Yanru Peng, Xiaofeng Zhang, Yuanda |
author_sort |
Han, Jiahao |
title |
The impact of intra-annual temperature fluctuations on agricultural temperature extreme events and attribution analysis in mainland China. |
title_short |
The impact of intra-annual temperature fluctuations on agricultural temperature extreme events and attribution analysis in mainland China. |
title_full |
The impact of intra-annual temperature fluctuations on agricultural temperature extreme events and attribution analysis in mainland China. |
title_fullStr |
The impact of intra-annual temperature fluctuations on agricultural temperature extreme events and attribution analysis in mainland China. |
title_full_unstemmed |
The impact of intra-annual temperature fluctuations on agricultural temperature extreme events and attribution analysis in mainland China. |
title_sort |
impact of intra-annual temperature fluctuations on agricultural temperature extreme events and attribution analysis in mainland china. |
publisher |
Elsevier Science |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.scitotenv.2024.174904 https://pubmed.ncbi.nlm.nih.gov/39059648 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Sci Total Environ ISSN:1879-1026 Volume:949 |
op_relation |
https://doi.org/10.1016/j.scitotenv.2024.174904 https://pubmed.ncbi.nlm.nih.gov/39059648 |
op_rights |
Copyright © 2024 Elsevier B.V. All rights reserved. |
op_doi |
https://doi.org/10.1016/j.scitotenv.2024.174904 |
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Science of The Total Environment |
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949 |
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174904 |
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1809897849301762048 |