Response of rice phenology to climate warming weakened across China during 1981–2018: did climatic or anthropogenic factors play a role?
Climate warming has substantially shifted plant phenology, which alters the length of growing season and consequently affects plant productivity. Recent studies showed a stalled or reversed impact of climate change on vegetation phenology since 1998, as well as an asymmetric warming effect. However,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/ac6dfb |
| _version_ | 1827869432861425664 |
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| author | Liangliang Zhang Zhao Zhang Jing Zhang Yuchuan Luo Fulu Tao |
| author_facet | Liangliang Zhang Zhao Zhang Jing Zhang Yuchuan Luo Fulu Tao |
| author_sort | Liangliang Zhang |
| collection | DOAJ |
| description | Climate warming has substantially shifted plant phenology, which alters the length of growing season and consequently affects plant productivity. Recent studies showed a stalled or reversed impact of climate change on vegetation phenology since 1998, as well as an asymmetric warming effect. However, how field crop phenology responded to the recent climate warming and the asymmetric warming remains unknown. In addition, the relative roles of climate change, sowing date and cultivars shifts in the spatiotemporal changes of crop phenology at different regions need to be better understood. Here, using the latest 9,393 phenological records at 249 agro-meteorological stations across China over 1981–2018, we critically investigated the spatiotemporal dynamics of rice phenology and disentangled the effects of different drivers by exploiting the physiological relationship between crop phenology and thermal accumulation. The results showed that length of growing period (GP) increased by 3.24 ± 0.15 days/decade for single rice, 1.90 ± 0.22 days/decade for early rice and 0.47 ± 0.14 days/decade for late rice. Although climate warming during rice GP did not slow down, the trends in rice GP and the correlations between GP and temperature decreased generally from 1981–1999 to 2000–2018. The weakened phenological response to climate change was mainly caused by agronomic managements, especially cultivar shifts. Climate warming shortened GP by 0.84 ± 1.80, 1.23 ± 0.77, and 1.29 ± 1.24 days/decade for single rice, early rice and late rice, respectively. However, cultivar shifts prolonged it respectively by 3.28 ± 3.68, 2.15 ± 2.38, and 2.31 ± 3.36 days/decade, totally offsetting the negative effects of climate warming. Rice responded to daytime and night-time warming differently with night-time temperature affecting GPs more. Our study provided new insights that rice phenology responded to night-time warming more than daytime warming across China however the response to climate warming weakened, and cultivar shifts outweighed climate change in affecting rice phenology. |
| first_indexed | 2024-03-12T15:44:11Z |
| format | Article |
| id | doaj.art-8a4a7c98e01d47d090f45baef5edf9a8 |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T15:44:11Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-8a4a7c98e01d47d090f45baef5edf9a82023-08-09T15:32:14ZengIOP PublishingEnvironmental Research Letters1748-93262022-01-0117606402910.1088/1748-9326/ac6dfbResponse of rice phenology to climate warming weakened across China during 1981–2018: did climatic or anthropogenic factors play a role?Liangliang Zhang0Zhao Zhang1Jing Zhang2Yuchuan Luo3Fulu Tao4Academy of Disaster Reduction and Emergency Management Minsitry of Emergency Management & Ministry of Education, School of National Safety and Emergency Management, Beijing Normal University , Beijing 100875, People’s Republic of ChinaAcademy of Disaster Reduction and Emergency Management Minsitry of Emergency Management & Ministry of Education, School of National Safety and Emergency Management, Beijing Normal University , Beijing 100875, People’s Republic of ChinaAcademy of Disaster Reduction and Emergency Management Minsitry of Emergency Management & Ministry of Education, School of National Safety and Emergency Management, Beijing Normal University , Beijing 100875, People’s Republic of ChinaAcademy of Disaster Reduction and Emergency Management Minsitry of Emergency Management & Ministry of Education, School of National Safety and Emergency Management, Beijing Normal University , Beijing 100875, People’s Republic of ChinaKey Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences , Beijing, People’s Republic of China; College of Resources and Environment, University of Chinese Academy of Sciences , Beijing, People’s Republic of China; Natural Resources Institute Finland (Luke) , Helsinki, FinlandClimate warming has substantially shifted plant phenology, which alters the length of growing season and consequently affects plant productivity. Recent studies showed a stalled or reversed impact of climate change on vegetation phenology since 1998, as well as an asymmetric warming effect. However, how field crop phenology responded to the recent climate warming and the asymmetric warming remains unknown. In addition, the relative roles of climate change, sowing date and cultivars shifts in the spatiotemporal changes of crop phenology at different regions need to be better understood. Here, using the latest 9,393 phenological records at 249 agro-meteorological stations across China over 1981–2018, we critically investigated the spatiotemporal dynamics of rice phenology and disentangled the effects of different drivers by exploiting the physiological relationship between crop phenology and thermal accumulation. The results showed that length of growing period (GP) increased by 3.24 ± 0.15 days/decade for single rice, 1.90 ± 0.22 days/decade for early rice and 0.47 ± 0.14 days/decade for late rice. Although climate warming during rice GP did not slow down, the trends in rice GP and the correlations between GP and temperature decreased generally from 1981–1999 to 2000–2018. The weakened phenological response to climate change was mainly caused by agronomic managements, especially cultivar shifts. Climate warming shortened GP by 0.84 ± 1.80, 1.23 ± 0.77, and 1.29 ± 1.24 days/decade for single rice, early rice and late rice, respectively. However, cultivar shifts prolonged it respectively by 3.28 ± 3.68, 2.15 ± 2.38, and 2.31 ± 3.36 days/decade, totally offsetting the negative effects of climate warming. Rice responded to daytime and night-time warming differently with night-time temperature affecting GPs more. Our study provided new insights that rice phenology responded to night-time warming more than daytime warming across China however the response to climate warming weakened, and cultivar shifts outweighed climate change in affecting rice phenology.https://doi.org/10.1088/1748-9326/ac6dfbagricultural managementsclimate changecrop cultivarsphenologyattribution |
| spellingShingle | Liangliang Zhang Zhao Zhang Jing Zhang Yuchuan Luo Fulu Tao Response of rice phenology to climate warming weakened across China during 1981–2018: did climatic or anthropogenic factors play a role? Environmental Research Letters agricultural managements climate change crop cultivars phenology attribution |
| title | Response of rice phenology to climate warming weakened across China during 1981–2018: did climatic or anthropogenic factors play a role? |
| title_full | Response of rice phenology to climate warming weakened across China during 1981–2018: did climatic or anthropogenic factors play a role? |
| title_fullStr | Response of rice phenology to climate warming weakened across China during 1981–2018: did climatic or anthropogenic factors play a role? |
| title_full_unstemmed | Response of rice phenology to climate warming weakened across China during 1981–2018: did climatic or anthropogenic factors play a role? |
| title_short | Response of rice phenology to climate warming weakened across China during 1981–2018: did climatic or anthropogenic factors play a role? |
| title_sort | response of rice phenology to climate warming weakened across china during 1981 2018 did climatic or anthropogenic factors play a role |
| topic | agricultural managements climate change crop cultivars phenology attribution |
| url | https://doi.org/10.1088/1748-9326/ac6dfb |
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