Future crop yields and water productivity changes for Nebraska rainfed and irrigated crops

doi:10.1080/02508060.2018.1516093

Title: Future crop yields and water productivity changes for Nebraska rainfed and irrigated crops

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Abstract

In this study, we assessed future rainfed and irrigated crop yield and water productivity changes in Nebraska across multiple climate and emission scenarios using an empirical modeling approach. We found rainfed crops showed slightly increased crop water productivity while irrigated crops showed no change or decreased water productivity. Contrary to U.S.-wide studies reporting declines in crop yields, we projected Nebraska crop yields to increase overall with greatest increases in current rainfed fields due to combined effects from maximum and minimum temperatures. However, the increased rainfed yields are not sufficient to fully close the gap between rainfed and irrigated yields.

Authors:

Lu, Yaqiong ^[1]; Yang, Xianyu ^[2]; Kueppers, Lara ^[3]

National Center for Atmospheric Research (NCAR), Boulder, CO (United States). Climate and Global Dynamics Lab.; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Climate and Ecosystem Sciences Division
Chengdu Univ. of Information Technology, Chengdu (China). School of Atmospheric Sciences
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Climate and Ecosystem Sciences Division; Univ. of California, Berkeley, CA (United States). Energy and Resource Group

Publication Date:: 2018-10-15

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1567131

Grant/Contract Number:: AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Water International

Additional Journal Information:: Journal Volume: 43; Journal Issue: 6; Journal ID: ISSN 0250-8060

Publisher:: Taylor & Francis

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; crop yields; water productivity; irrigated crops; rainfed crops; Nebraska

Citation Formats


                    Lu, Yaqiong, Yang, Xianyu, and Kueppers, Lara. Future crop yields and water productivity changes for Nebraska rainfed and irrigated crops.  United States: N. p., 2018. 
        Web.  doi:10.1080/02508060.2018.1516093.

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                    Lu, Yaqiong, Yang, Xianyu, & Kueppers, Lara. Future crop yields and water productivity changes for Nebraska rainfed and irrigated crops.  United States.  doi:10.1080/02508060.2018.1516093.

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                    Lu, Yaqiong, Yang, Xianyu, and Kueppers, Lara. Mon .  
        "Future crop yields and water productivity changes for Nebraska rainfed and irrigated crops".  United States.  doi:10.1080/02508060.2018.1516093.  https://www.osti.gov/servlets/purl/1567131.

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@article{osti_1567131,

  title        = {Future crop yields and water productivity changes for Nebraska rainfed and irrigated crops},

  author       = {Lu, Yaqiong and Yang, Xianyu and Kueppers, Lara},

  abstractNote = {In this study, we assessed future rainfed and irrigated crop yield and water productivity changes in Nebraska across multiple climate and emission scenarios using an empirical modeling approach. We found rainfed crops showed slightly increased crop water productivity while irrigated crops showed no change or decreased water productivity. Contrary to U.S.-wide studies reporting declines in crop yields, we projected Nebraska crop yields to increase overall with greatest increases in current rainfed fields due to combined effects from maximum and minimum temperatures. However, the increased rainfed yields are not sufficient to fully close the gap between rainfed and irrigated yields.},

  doi          = {10.1080/02508060.2018.1516093},

  journal      = {Water International},

  number       = 6,

  volume       = 43,

  place        = {United States},

  year         = {2018},

  month        = {10}

}

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