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Title: An AgMIP framework for improved agricultural representation in integrated assessment models

Journal Article · · Environmental Research Letters

Integrated assessment models (IAMs) hold great potential to assess how future agricultural systems will be shaped by socioeconomic development, technological innovation, and changing climate conditions. By coupling with climate and crop model emulators, IAMs have the potential to resolve important agricultural feedback loops and identify unintended consequences of socioeconomic development for agricultural systems. Here we propose a framework to develop robust representation of agricultural system responses within IAMs, linking downstream applications with model development and the coordinated evaluation of key climate responses from local to global scales. We survey the strengths and weaknesses of protocol-based assessments linked to the Agricultural Model Intercomparison and Improvement Project (AgMIP), each utilizing multiple sites and models to evaluate crop response to core climate changes including shifts in carbon dioxide concentration, temperature, and water availability, with some studies further exploring how climate responses are affected by nitrogen levels and adaptation in farm systems. Site-based studies with carefully calibrated models encompass the largest number of activities; however they are limited in their ability to capture the full range of global agricultural system diversity. Representative site networks provide more targeted response information than broadly-sampled networks, with limitations stemming from difficulties in covering the diversity of farming systems. Global gridded crop models provide comprehensive coverage, although with large challenges for calibration and quality control of inputs. Diversity in climate responses underscores that crop model emulators must distinguish between regions and farming system while recognizing model uncertainty. Finally, to bridge the gap between bottom-up and top-down approaches we recommend the deployment of a hybrid climate response system employing a representative network of sites to bias-correct comprehensive gridded simulations, opening the door to accelerated development and a broad range of applications.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Stanford Univ., CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); United Kingdom Department for International Development
Grant/Contract Number:
AC05-76RL01830; SC0005171; AC5-76RL01830; GB-1-202108
OSTI ID:
1410187
Alternate ID(s):
OSTI ID: 1439707; OSTI ID: 1509883
Report Number(s):
PNNL-SA-126658
Journal Information:
Environmental Research Letters, Journal Name: Environmental Research Letters Vol. 12 Journal Issue: 12; ISSN 1748-9326
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 49 works
Citation information provided by
Web of Science

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Cited By (8)

Earth Observations and Integrative Models in Support of Food and Water Security journal February 2019
Agricultural Development and Land Use Change in India: A Scenario Analysis of Trade‐Offs Between UN Sustainable Development Goals (SDGs) journal February 2020
Synthesis and Review: an inter-method comparison of climate change impacts on agriculture journal June 2018
Plant and crop simulation models: powerful tools to link physiology, genetics, and phenomics journal April 2019
Coordinating AgMIP data and models across global and regional scales for 1.5°C and 2.0°C assessments
  • Rosenzweig, Cynthia; Ruane, Alex C.; Antle, John
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 376, Issue 2119 https://doi.org/10.1098/rsta.2016.0455
journal April 2018
Transmission of climate risks across sectors and borders
  • Challinor, Andy J.; Adger, W. Neil; Benton, Tim G.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 376, Issue 2121 https://doi.org/10.1098/rsta.2017.0301
journal April 2018
Invited review: Intergovernmental Panel on Climate Change, agriculture, and food—A case of shifting cultivation and history journal May 2019
The effect of univariate bias adjustment on multivariate hazard estimates journal January 2019

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