Waterlogging risk assessment for winter wheat using multi-source data in the middle and lower reaches of Yangtze River

Chen, Yuanyuan; Huang, Jingfeng; Song, Xiaodong; Wu, Huayue; Sheng, Shaoxue; Liu, Zhixiong; Wang, Xiuzhen

doi:10.25165/j.ijabe.20181105.3246

Cited by 3 publications

(7 citation statements)

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“…The dominant monsoon climate in this region, especially from March to May, often carries abundant precipitation with an erratic spatial and temporal distribution ( Ding et al, 2017 ). Consequently, varying degrees of waterlogging are jointly determined by local climate, terrain, soil properties, and underground water table level ( Chen et al, 2018 ). This excessive precipitation usually coincides with sensitive growth phases of wheat crops, e.g., reproductive and grain filling phases.…”

Section: Introductionmentioning

confidence: 99%

Post-flowering Soil Waterlogging Curtails Grain Yield Formation by Restricting Assimilates Supplies to Developing Grains

Hou

Wang

et al. 2022

Front. Plant Sci.

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Soil waterlogging is among the major factors limiting the grain yield of winter wheat crops in many parts of the world, including the middle and lower reaches of the Yangtze River China. In a field study, we investigated the relationship between leaf physiology and grain development under a varying duration of post-flowering waterlogging. A winter wheat cultivar Ningmai 13 was exposed to soil waterlogging for 0 (W0), 3 (W3), 6 (W6), and 9 d (W9) at anthesis. Increasing waterlogging duration significantly reduced flag leaf SPAD (soil plant analysis development) values and net photosynthetic rate (Pn). There was a linear reduction in flag leaf Pn and SPAD as plant growth progressed under all treatments; however, the speed of damage was greater in the waterlogged leaves. For example, compared with their respective control (W0), flag leaves of W9 treatment have experienced 46% more reduction in Pn at 21 d after anthesis (DAA) than at 7 DAA. Increasing waterlogging duration also induced oxidative damage in flag leaves, measured as malondialdehyde (MDA) contents. The capacity to overcome this oxidative damage was limited by the poor performance of antioxidant enzymes in wheat leaves. Inhibited leaf Pn and capacity to sustain assimilate synthesis under waterlogged environments reduced grain development. Compared with W0, W6 and W9 plants experienced a 20 and 22% reduction in thousand grain weight (TGW) in response to W6 and W9, respectively at 7 DAA and 11 and 19%, respectively at 28 DAA. Sustained waterlogging also significantly reduced grain number per spike and final grain yield. Averaged across two years of study, W9 plants produced 28% lesser final grain yield than W0 plants. Our study suggested that wheat crops are highly sensitive to soil waterlogging during reproductive and grain filling phases due to their poor capacity to recover from oxidative injury to photosynthesis. Management strategies such as planting time, fertilization and genotype selection should be considered for the areas experiencing frequent waterlogging problems.

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Section: Introductionmentioning

confidence: 99%

Post-flowering Soil Waterlogging Curtails Grain Yield Formation by Restricting Assimilates Supplies to Developing Grains

Hou

Wang

et al. 2022

Front. Plant Sci.

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“…As one of the most important agricultural production areas in China, the middle and lower Yangtze River region (MLYRR) contributes the greatest variability to China's grain production [12]. Under the influence of the subtropical monsoon, extreme precipitation occurs frequently in this region [17] and its frequency is increasing [18,19]; as a result, this region is known as one of the regions in China most prone to waterlogging [20,21]. Wheat and maize are important food crops in the MLYRR, and they are majorly cultivated in Anhui, Hubei, and Jiangsu provinces (according to the yield statistics over the last 20 years, they have contributed 98.2% of the total wheat yield and 81.9% of the total maize yield in the MLYRR).…”

Section: Introductionmentioning

confidence: 99%

“…In Hubei Province, approximately 806,200 hm 2 of farmland were affected by waterlogging disaster every year [22]. In recent years, 70% of the meteorological disasters in Jiangsu Province can be attributed to waterlogging [20]; in the Jianghuai Plain of Anhui Province, waterlogging disasters occur with a frequency of 2.5 years, which results in ~10% of the winter wheat yield being lost [20]. Therefore, it is essential to accurately assess the impacts of crop waterlogging disasters in the MLYRR, especially for the main food-production regions.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Impacts of Waterlogging Disasters on Wheat and Maize Yields in the Middle and Lower Yangtze River Region, China, by an Agrometeorological Index

Wang,

Qian,

Dong

et al. 2023

Agronomy

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Waterlogging disasters severely restrict crop production. The middle and lower Yangtze River region (MLYRR) is an important grain-producing region in China but suffers from severe waterlogging disasters. In this study, an agriculture-specific index called the accumulative humidity index was introduced to analyze the spatiotemporal characteristics of waterlogging during different wheat and maize growth stages in the MLYRR from 1960 to 2020. Additionally, the relationships between waterlogging intensities and crop yield fluctuations were revealed. The results showed that over the past 60 years, the intensity of wheat and maize waterlogging in the central and eastern MLYRR have increased; crop waterlogging was more intense in the 1990s–2010s than during the 1960s–1980s, and waterlogging intensity peaked in the 1990s. For both crops, waterlogging was more intense during the early growth stages, but its yield-reducing impacts were more significant during middle and late growth stages. The southern MLYRR (especially southern Anhui) was the region where both crops were most prone to waterlogging, but yields in this region were not severely affected by waterlogging. Compared with wheat, maize was more prone to waterlogging, and its yield was more significantly reduced by waterlogging. In conclusion, this study provides guidance for agricultural waterlogging risk reduction in the MLYRR.

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“…Therefore, the study area is one of the typical areas for conducting winter wheat disaster risk research. At present, the research on meteorological disaster risk assessment of winter wheat based on single disaster is common, such as drought (Ekrami et al ., 2016), flood (Chen et al ., 2018), and low temperature (Hassan et al ., 2021). But for the whole growth period of winter wheat, it is not only affected by single meteorological disaster (Chen et al ., 2016).…”

Section: Introductionmentioning

confidence: 99%

“…But for the whole growth period of winter wheat, it is not only affected by single meteorological disaster (Chen et al ., 2016). Therefore, exploring the risk assessment of multimeteorological disasters is the main development trend and direction in the future, which can improve the disaster risk awareness of farmers and implement the disaster prevention and mitigation (DPM) policies of government (Agric et al ., 2018).…”

Section: Introductionmentioning

confidence: 99%

Risk assessment for comprehensive meteorological disaster of winter wheat based on multisource gridded data: A case study in the upper Huaihe River basin, China

Zhao

Shi

Sun

et al. 2022

Intl Journal of Climatology

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Crop production security is an essential guarantee for the prosperity of country and the well-being of people. In the context of frequent occurrence of extreme weather events, how to comprehensively evaluate the risk of multiple hazards and quantitatively describe spatial differences will be one of the significant topics in agricultural disaster mitigation. In this study, based on the gridded meteorological data and other datasets (crop, socioeconomic, disaster loss, and actual planting location) from 2000 to 2020, multihazard risk model for different growth period was built to assess the comprehensive risk of winter wheat in the upper Huaihe River basin (UHRB), China. The conclusions were as follows: (a) The spatial distribution of continuous rain risk increased gradually from north to south; the area of the highest lodging risk was located in the east; the spatial trend of drought risk was the highest in the south and the lowest in the northeast. (b) The weights of continuous rain, lodging, and drought disasters were 41, 31, and 28%, respectively, which indicated that winter wheat in UHRB was most affected by continuous rain during the harvest period. (c) The spatial distribution of comprehensive disaster risk assessment showed that the higher risk areas were located in the central and southern parts (Huaibin, Linquan, Luoshan). After verification by historical disasters information, the results are credible, providing a concrete scientific basis for implementing regional agricultural disaster response measures.

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Waterlogging risk assessment for winter wheat using multi-source data in the middle and lower reaches of Yangtze River

Cited by 3 publications

References 32 publications

Post-flowering Soil Waterlogging Curtails Grain Yield Formation by Restricting Assimilates Supplies to Developing Grains

Post-flowering Soil Waterlogging Curtails Grain Yield Formation by Restricting Assimilates Supplies to Developing Grains

Evaluating the Impacts of Waterlogging Disasters on Wheat and Maize Yields in the Middle and Lower Yangtze River Region, China, by an Agrometeorological Index

Risk assessment for comprehensive meteorological disaster of winter wheat based on multisource gridded data: A case study in the upper Huaihe River basin, China

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