globalchange  > 气候变化与战略
DOI: 10.1016/j.gfs.2019.100339
论文题名:
Integrated assessment of crop production and resource use efficiency indicators for the U.S. Corn Belt
作者: Riccetto S.; Davis A.S.; Guan K.; Pittelkow C.M.
刊名: Global Food Security
ISSN: 22119124
出版年: 2020
卷: 24
语种: 英语
英文关键词: Maize yield gap ; Nitrogen partial productivity ; Nitrogen surplus ; Sustainable intensification ; Water productivity ; Yield stability
英文摘要: To address the global challenge of increasing the efficiency of food production in an era of climate change, integrated research frameworks based on multiple performance criteria are required to promote synergies while minimizing tradeoffs. In this study, we investigated spatial and temporal trends in yield gaps, resource use efficiencies for nitrogen and water, and yield stability at the county-level in the U.S. Corn Belt, the world's largest maize production region. Our results provide an integrated assessment of regions with higher vs. lower relative performance across indicators, while also revealing high spatial variability in relationships between yield gaps and nitrogen and water use efficiencies. Despite overall positive trends in maize production, there was evidence of increasing disparity over time, with more improvements occurring in highly productive areas. This study provides a holistic framework for balancing efforts to increase crop production, resource use efficiencies, and yield stability at the regional scale. © 2019 The Authors
Citation statistics:
被引频次[WOS]:15   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159095
Appears in Collections:气候变化与战略

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作者单位: Department of Crop Sciences, University of Illinois, Urbana, IL 61801, United States; Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, IL 61801, United States; National Center for Supercomputing Applications, Urbana, IL 61801, United States; Department of Plant Sciences, University of California, Davis, Davis, CA 95616, United States

Recommended Citation:
Riccetto S.,Davis A.S.,Guan K.,et al. Integrated assessment of crop production and resource use efficiency indicators for the U.S. Corn Belt[J]. Global Food Security,2020-01-01,24
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