A high-resolution assessment of climate change impact on water footprints of cereal production in India

dc.creatorMali, S.S.
dc.creatorShirsath, P.B.
dc.creatorIslam, A.
dc.date2021-05-26T00:25:11Z
dc.date2021-05-26T00:25:11Z
dc.date2021
dc.date.accessioned2023-07-17T20:07:45Z
dc.date.available2023-07-17T20:07:45Z
dc.identifierhttps://hdl.handle.net/10883/21529
dc.identifier10.1038/s41598-021-88223-6
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7513310
dc.descriptionWater footprint (WF), a comprehensive indicator of water resources appropriation, has evolved as an efficient tool to improve the management and sustainability of water resources. This study quantifies the blue and green WF of major cereals crops in India using high resolution soil and climatic datasets. A comprehensive modelling framework, consisting of Evapotranspiration based Irrigation Requirement (ETIR) tool, was developed for WF assessment. For assessing climate change impact on WF, multi-model ensemble climate change scenarios were generated using the hybrid-delta ensemble method for RCP4.5 and RCP6.0 and future period of 2030s and 2050s. The total WF of the cereal crops are projected to change in the range of − 3.2 to 6.3% under different RCPs in future periods. Although, the national level green and blue WF is projected to change marginally, distinct trends were observed for Kharif (rainy season—June to September) and rabi (winter season—October to February) crops. The blue WF of paddy is likely to decrease by 9.6%, while for wheat it may increase by 4.4% under RCP4.5 during 2050s. The green WF of rabi crops viz. wheat and maize is likely to increase in the range of 20.0 to 24.1% and 9.9 to 16.2%, respectively. This study provides insights into the influences of climate change on future water footprints of crop production and puts forth regional strategies for future water resource management. In view of future variability in the WFs, a water footprint-based optimization for relocation of crop cultivation areas with the aim of minimising the blue water use would be possible management alternative.
dc.languageEnglish
dc.publisherNature Publishing Group
dc.relationhttps://www.nature.com/articles/s41598-021-88223-6#Sec10
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source11
dc.source2045-2322
dc.sourceNature Scientific Reports
dc.source8715
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectCLIMATE CHANGE
dc.subjectWATER FOOTPRINT
dc.subjectCEREAL CROPS
dc.titleA high-resolution assessment of climate change impact on water footprints of cereal production in India
dc.typeArticle
dc.typePublished Version
dc.coverageIndia
dc.coverageLondon (United Kingdom)


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