Characteristics of Vegetation Photosynthesis under Flash Droughts in the Major Agricultural Areas of Southern China

Atmosphere, Journal Year: 2024, Volume and Issue: 15(8), P. 886 - 886

Published: July 25, 2024

Flash droughts adversely affect agriculture and ecosystems due to their rapid depletion of soil moisture (SM). However, few studies assessed the impacts flash on crops, especially in agricultural regions southern China. In this study, we investigated using crop root zone SM main region Additionally, solar-induced chlorophyll fluorescence (SIF) served as a vegetation index explore response droughts. The results reveal that SIF exhibited an upward trend from 2001 2020 study area, indicating enhanced photosynthetic capacity crops subsequent yield improvement. Hotspots drought frequency occurred eastern areas both upper lower Yangtze River regions, specifically where most types were particularly prevalent. average duration was 6–12 pentads, sufficiently long significantly hinder photosynthesis, resulting negative standardized anomalies. area affected by presented downward during 2001–2020, with longest recent decade, 2019, 2010, 2013. time >80% <2 respectively, have high sensitivity northern part middle southwestern southeastern parts South China region, mean values anomalies than −0.5 droughts, suggesting these severely During late summer experienced precipitation shortage coupled evapotranspiration capacity. This unfavorable combination meteorological conditions can quickly lead substantial SM, ultimately triggering be devastating for crops. Our findings enhance understanding well provide early warning signals farmers make appropriate mitigation strategies.

Language: Английский

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Spatial and temporal dynamic zoning of crop water consumption under past and future climate and socioeconomic changes in China

Sustainable Production and Consumption, Journal Year: 2024, Volume and Issue: 50, P. 98 - 114

Published: July 31, 2024

Language: Английский

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Mapping the susceptibility to freeze-thaw deterioration and regionalization of freeze-thaw environments of earthen sites in China: A preliminary study

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 955, P. 176995 - 176995

Published: Oct. 18, 2024

Language: Английский

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Mapping the Susceptibility to Freeze-Thaw Deterioration And Regionalization Of Freeze-Thaw Environments of Earthen Sites in China: A Preliminary Study

Published: Jan. 1, 2024

Language: Английский

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Enriching Regional Economic Dynamics through a Knowledge-Driven Spatial Analysis Model: a Deep Learning Approach

Journal of the Knowledge Economy, Journal Year: 2023, Volume and Issue: 15(3), P. 12293 - 12336

Published: Nov. 10, 2023

Language: Английский

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