Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicators
The increasing frequency and severity of droughts, driven by rising global temperatures, are impacting crop yields. Elucidating the response of agricultural ecosystems to droughts under different management practices is vital for food security that supports the United Nations Sustainable Development...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Agricultural Water Management |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378377424005857 |
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| author | Yanan Chen Ying Wang Chaoyang Wu Alexandre Maniçoba da Rosa Ferraz Jardim Meihong Fang Li Yao Guihua Liu Qiuyi Xu Lintao Chen Xuguang Tang |
| author_facet | Yanan Chen Ying Wang Chaoyang Wu Alexandre Maniçoba da Rosa Ferraz Jardim Meihong Fang Li Yao Guihua Liu Qiuyi Xu Lintao Chen Xuguang Tang |
| author_sort | Yanan Chen |
| collection | DOAJ |
| description | The increasing frequency and severity of droughts, driven by rising global temperatures, are impacting crop yields. Elucidating the response of agricultural ecosystems to droughts under different management practices is vital for food security that supports the United Nations Sustainable Development Goal 2 for zero hunger. Our study revisited the spatio-temporal evolution of record-breaking drought event of 2012 in the continental United States by using a 3-month Standard Precipitation Evapotranspiration Index (SPEI3), and analyzed the impacts of such drought based on three satellite-based ecological metrics, including structural metric (LAI) and physiological metrics (GPP, GOSIF) across the irrigated and rainfed croplands, respectively. Generally, these metrics exhibited obvious seasonal dynamics, and successfully captured the drought-induced stress on agriculture in 2012. In rainfed croplands, LAI was more sensitive to drought compared to the other two metrics. Specifically, during the 2012 drought, LAI in rainfed fields was below the multi-year average at approximately day of year (DOY) 161, while GPP and GOSIF began at about DOY 177. By contrast, LAI and GPP simultaneously captured the negative anomalies in irrigated croplands at approximately DOY 169. Compared to the irrigated cropland, the rainfed cropland showed larger cumulative decreases in LAI, GPP, and GOSIF from June to September 2012 by about 3.64, 12.92 g C m−2, and 0.55 W m−2 μm−1 sr−1, respectively. Spatially, all negative anomalies increased throughout the growing season of both rainfed and irrigated croplands in the continental United States. The percentage of negative anomalies in irrigated fields was lower than in rainfed fields during this period. In this study, we illustrated that irrigation plays an important role in mitigating meteorological droughts in agroecosystems as well as providing safeguards for human food supply. |
| format | Article |
| id | doaj-art-45a182a4a38e433099c29cedbad12114 |
| institution | Kabale University |
| issn | 1873-2283 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Agricultural Water Management |
| spelling | doaj-art-45a182a4a38e433099c29cedbad121142025-01-07T04:16:54ZengElsevierAgricultural Water Management1873-22832025-02-01307109249Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicatorsYanan Chen0Ying Wang1Chaoyang Wu2Alexandre Maniçoba da Rosa Ferraz Jardim3Meihong Fang4Li Yao5Guihua Liu6Qiuyi Xu7Lintao Chen8Xuguang Tang9Institute of Remote Sensing and Geosciences, Hangzhou Normal University, Hangzhou 311121, China; School of Geographical Sciences, Southwest University, Chongqing 400715, ChinaSchool of Geographical Sciences, Southwest University, Chongqing 400715, ChinaKey Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaDepartment of Biodiversity, Institute of Biosciences, São Paulo State University UNESP, Av. 24A, 1515, Rio Claro, São Paulo 13506-900, BrazilInstitute of Remote Sensing and Geosciences, Hangzhou Normal University, Hangzhou 311121, ChinaSchool of Culture and Tourism, Zhejiang International Studies University, Hangzhou 310023, China; Corresponding authors.School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, ChinaSchool of Geographical Sciences, Southwest University, Chongqing 400715, ChinaInstitute of Remote Sensing and Geosciences, Hangzhou Normal University, Hangzhou 311121, ChinaInstitute of Remote Sensing and Geosciences, Hangzhou Normal University, Hangzhou 311121, China; Corresponding authors.The increasing frequency and severity of droughts, driven by rising global temperatures, are impacting crop yields. Elucidating the response of agricultural ecosystems to droughts under different management practices is vital for food security that supports the United Nations Sustainable Development Goal 2 for zero hunger. Our study revisited the spatio-temporal evolution of record-breaking drought event of 2012 in the continental United States by using a 3-month Standard Precipitation Evapotranspiration Index (SPEI3), and analyzed the impacts of such drought based on three satellite-based ecological metrics, including structural metric (LAI) and physiological metrics (GPP, GOSIF) across the irrigated and rainfed croplands, respectively. Generally, these metrics exhibited obvious seasonal dynamics, and successfully captured the drought-induced stress on agriculture in 2012. In rainfed croplands, LAI was more sensitive to drought compared to the other two metrics. Specifically, during the 2012 drought, LAI in rainfed fields was below the multi-year average at approximately day of year (DOY) 161, while GPP and GOSIF began at about DOY 177. By contrast, LAI and GPP simultaneously captured the negative anomalies in irrigated croplands at approximately DOY 169. Compared to the irrigated cropland, the rainfed cropland showed larger cumulative decreases in LAI, GPP, and GOSIF from June to September 2012 by about 3.64, 12.92 g C m−2, and 0.55 W m−2 μm−1 sr−1, respectively. Spatially, all negative anomalies increased throughout the growing season of both rainfed and irrigated croplands in the continental United States. The percentage of negative anomalies in irrigated fields was lower than in rainfed fields during this period. In this study, we illustrated that irrigation plays an important role in mitigating meteorological droughts in agroecosystems as well as providing safeguards for human food supply.http://www.sciencedirect.com/science/article/pii/S0378377424005857Rainfed croplandIrrigated croplandLAIGPPGOSIF |
| spellingShingle | Yanan Chen Ying Wang Chaoyang Wu Alexandre Maniçoba da Rosa Ferraz Jardim Meihong Fang Li Yao Guihua Liu Qiuyi Xu Lintao Chen Xuguang Tang Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicators Agricultural Water Management Rainfed cropland Irrigated cropland LAI GPP GOSIF |
| title | Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicators |
| title_full | Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicators |
| title_fullStr | Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicators |
| title_full_unstemmed | Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicators |
| title_short | Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicators |
| title_sort | drought induced stress on rainfed and irrigated agriculture insights from multi source satellite derived ecological indicators |
| topic | Rainfed cropland Irrigated cropland LAI GPP GOSIF |
| url | http://www.sciencedirect.com/science/article/pii/S0378377424005857 |
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