IDEAS home Printed from https://ideas.repec.org/a/eee/agiwat/v307y2025ics0378377424005857.html
   My bibliography  Save this article

Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicators

Author

Listed:
  • Chen, Yanan
  • Wang, Ying
  • Wu, Chaoyang
  • Rosa Ferraz Jardim, Alexandre Maniçoba da
  • Fang, Meihong
  • Yao, Li
  • Liu, Guihua
  • Xu, Qiuyi
  • Chen, Lintao
  • Tang, Xuguang

Abstract

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.

Suggested Citation

  • Chen, Yanan & Wang, Ying & Wu, Chaoyang & Rosa Ferraz Jardim, Alexandre Maniçoba da & Fang, Meihong & Yao, Li & Liu, Guihua & Xu, Qiuyi & Chen, Lintao & Tang, Xuguang, 2025. "Drought-induced stress on rainfed and irrigated agriculture: Insights from multi-source satellite-derived ecological indicators," Agricultural Water Management, Elsevier, vol. 307(C).
    • Handle: RePEc:eee:agiwat:v:307:y:2025:i:c:s0378377424005857
    DOI: 10.1016/j.agwat.2024.109249
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0378377424005857
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.agwat.2024.109249?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:agiwat:v:307:y:2025:i:c:s0378377424005857. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/agwat .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.