Rice water requirement exacerbates groundwater depletion in Northeast China under a changing climate

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cg.authorship.typesCGIAR and developing country institute
cg.contributor.affiliationChina Agricultural University
cg.contributor.affiliationInternational Rice Research Institute
cg.contributor.donorNational Key Research and Development Program of China
cg.coverage.countryChina
cg.coverage.iso3166-alpha2CN
cg.coverage.regionEastern Asia
cg.creator.identifierTao Li: 0000-0002-1360-1396
cg.creator.identifierJin Zhao: 0000-0003-3976-8570
cg.creator.identifierZhentao Zhang: 0000-0002-9942-4123
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1016/j.agrformet.2025.110624
cg.isijournalISI Journal
cg.issn0168-1923
cg.journalAgricultural and Forest Meteorology
cg.number110624
cg.reviewStatusPeer Review
cg.volume371
dc.contributor.authorZhao, Yuanbo
dc.contributor.authorLi, Tao
dc.contributor.authorZhao, Jin
dc.contributor.authorZhang, Zhentao
dc.contributor.authorLiu, Runze
dc.contributor.authorShi, Yanying
dc.contributor.authorMa, Haoyu
dc.contributor.authorZhao, Chuang
dc.contributor.authorLiu, Zhijuan
dc.contributor.authorYang, Xiaoguang
dc.date.accessioned2025-08-04T03:02:04Z
dc.date.available2025-08-04T03:02:04Z
dc.identifier.urihttps://hdl.handle.net/10568/175943
dc.titleRice water requirement exacerbates groundwater depletion in Northeast China under a changing climateen
dcterms.abstractIn recent years, Northeast China (NEC) has emerged as a key rice production region. However, the region’s scarce precipitation and surface water availability raise concerns about groundwater over intensive rice cultivation. Using the process-based rice model ORYZA (v3), we assessed irrigation water demand and groundwater depletion under two irrigation regimes - Flood (FLD) Irrigation and Alternative Wet-dry (AWD) Irrigation - across two climate change scenarios (SSP1–2.6 and SSP5–8.5). Results indicated a substantial increase in irrigation water demand (28.6 % to 52.3 %) and groundwater depletion ratio (23.6 % to 53.0 %) under future climate scenarios, with higher impacts under the more extreme SSP5–8.5 pathway. Spatial analysis revealed that regions with larger rice cultivation areas, particularly in Sanjiang Plain, are more vulnerable to groundwater depletion. Furthermore, the benefits of AWD irrigation in mitigating water stress decline under climate change, with reductions in groundwater extraction alleviation (by 7.6 % to 7.9 %) and water use efficiency improvement (by 8.1 % to 8.3 %). These findings underscore the urgent need for spatially optimized rice cultivation and adaptive irrigation strategies tailored to ensure long-term groundwater sustainability and regional food security.en
dcterms.accessRightsLimited Access
dcterms.audienceCGIAR
dcterms.audienceDonors
dcterms.audienceFarmers
dcterms.audiencePolicy Makers
dcterms.audienceScientists
dcterms.bibliographicCitationZhao, Yuanbo, Tao Li, Jin Zhao, Zhentao Zhang, Runze Liu, Yanying Shi, Haoyu Ma, Chuang Zhao, Zhijuan Liu, and Xiaoguang Yang. "Rice water requirement exacerbates groundwater depletion in Northeast China under a changing climates." Agricultural and Forest Meteorology 371 (2025): 110624.
dcterms.issued2025-08
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherElsevier
dcterms.subjectrice
dcterms.subjectproduction systems
dcterms.subjectflood irrigation
dcterms.subjectgroudwater depletion
dcterms.subjectclimate change
dcterms.subjectwater demand
dcterms.subjectwater resources
dcterms.subjectagricultural water management
dcterms.subjectsustainability
dcterms.subjectfood security
dcterms.typeJournal Article

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