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Characterizing Droughts During the Rice Growth Period in Northeast China Based on Daily SPEI Under Climate Change

文献类型：期刊论文

作者Nie, Tangzhe6; Liu, Xiu6; Chen, Peng5; Jiang, Lili6; Sun, Zhongyi4; Yin, Shuai3; Wang, Tianyi2; Li, Tiecheng1; Du, Chong6
刊名PLANTS-BASEL
出版日期2025
卷号14期号:1页码:19
关键词rice potential evapotranspiration (PET0) standardized precipitation evapotranspiration index (SPEI) climate change drought characteristics
ISSN号2223-7747
DOI10.3390/plants14010030
通讯作者Du, Chong(duchong@hlju.edu.cn)
英文摘要In agricultural production, droughts occurring during the crucial growth periods of crops hinder crop development, while the daily-scale standardized precipitation evapotranspiration index (SPEI) can be applied to accurately identify the drought characteristics. In this study, we used the statistical downscaling method to obtain the daily precipitation (P-r), maximum air temperature (T-max ) and minimum air temperature (T-min) during the rice growing season in Heilongjiang Province from 2015 to 2100 under the SSP1-2.6, SSP2-4.5 and SSP5-8.5 in CMIP6, to study the spatial and temporal characteristics of drought during the rice growing season in cold region and the effect of climate change on drought characteristics. The potential evapotranspiration (PET0 ) was calculated using the regression correction method of the Hargreaves formula recommended by the FAO, and the daily SPEI was calculated to quantitatively identify the drought classification. The Pearson correlation coefficient was used to analyze the correlation between the meteorological factors (P-r, T-max , T-min), PET0 and SPEI. The results showed that: (1) Under 3 SSP scenarios, P(r )showed an increasing trend from the northwest to the southeast, T-max showed an increasing trend from the northeast to the southwest, and higher T(min )was mainly distributed in the east and west regions. (2) PET0 indicated an overall interannual rise in the three future SSP scenarios, with higher values mainly distributed in the central and western regions. The mean daily PET0 values ranged from 4.8 to 6.0 mm/d. (3) Under SSP1-2.6, rice mainly experienced mild drought and moderate drought (-0.5 >= SPEI > -1.5). The predominant drought classifications experienced were mild, moderate, and severe drought under SSP2-4.5 and SSP8.5 (-0.5 >= SPEI > -2.0). (4) The tillering stage experienced the highest drought frequency and drought intensity, with the longest drought lasting 24 days. However, the heading flower stage had the lowest drought frequency and drought intensity. The drought barycenter was mainly in Tieli and Suihua. (5) The PET0 was most affected by the T-max , while the SPEI was most affected by the P-r . This study offers a scientific and rational foundation for understanding the drought sensitivity of rice in Northeast China, as well as a rationale for the optimal scheduling of water resources in agriculture in the future.
WOS关键词POTENTIAL EVAPOTRANSPIRATION ; IMPACTS ; TRENDS ; CYCLE
资助项目Natural Science Foundation Project of Heilongjiang Province ; National Natural Science Foundation Project of China[52079028] ; Basic Scientific Research Fund of Heilongjiang Provincial Universities[2021-KYYWF-0019] ; Opening Project of Key Laboratory of Efficient Use of Agricultural Water Resources, Ministry of Agriculture and Rural Affairs of the People's Republic of China[AWR2021002] ; Postdoctoral Fellowship Program of CPSF[GZC20230668] ; [LH2023E109]
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:001394898800001
出版者MDPI
资助机构Natural Science Foundation Project of Heilongjiang Province ; National Natural Science Foundation Project of China ; Basic Scientific Research Fund of Heilongjiang Provincial Universities ; Opening Project of Key Laboratory of Efficient Use of Agricultural Water Resources, Ministry of Agriculture and Rural Affairs of the People's Republic of China ; Postdoctoral Fellowship Program of CPSF
源URL[http://ir.igsnrr.ac.cn/handle/311030/212603]  
专题中国科学院地理科学与资源研究所
通讯作者Du, Chong
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Northeast Agr Univ, Sch Water Conservancy & Civil Engn, Harbin 150030, Peoples R China
3.Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China
4.Hainan Univ, Coll Ecol & Environm, Haikou 570208, Peoples R China
5.Hohai Univ, Coll Agr Sci & Engn, Nanjing 211100, Peoples R China
6.Heilongjiang Univ, Sch Water Conservancy & Elect Power, Harbin 150080, Peoples R China
推荐引用方式
GB/T 7714		 Nie, Tangzhe,Liu, Xiu,Chen, Peng,et al. Characterizing Droughts During the Rice Growth Period in Northeast China Based on Daily SPEI Under Climate Change[J]. PLANTS-BASEL,2025,14(1):19.
APA Nie, Tangzhe.,Liu, Xiu.,Chen, Peng.,Jiang, Lili.,Sun, Zhongyi.,...&Du, Chong.(2025).Characterizing Droughts During the Rice Growth Period in Northeast China Based on Daily SPEI Under Climate Change.PLANTS-BASEL,14(1),19.
MLA Nie, Tangzhe,et al."Characterizing Droughts During the Rice Growth Period in Northeast China Based on Daily SPEI Under Climate Change".PLANTS-BASEL 14.1(2025):19.

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来源：地理科学与资源研究所

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