Potential impacts of climate change on storage conditions for commercial agriculture: an example for potato production in Michigan |
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| Authors: | Julie A Winkler Logan Soldo Ying Tang Todd Forbush David S Douches Chris M Long Courtney P Leisner C Robin Buell |
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| Institution: | 1.Department of Geography, Environment, and Spatial Sciences,Michigan State University,East Lansing,USA;2.Techmark, Inc.,Lansing,USA;3.Department of Plant, Soil and Microbial Sciences,Michigan State University,East Lansing,USA;4.MSU AgBioResearch,Michigan State University,East Lansing,USA;5.Department of Plant Biology,Michigan State University,East Lansing,USA;6.Plant Resilience Institute,Michigan State University,East Lansing,USA |
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| Abstract: | Climate change is anticipated to influence all parts of agricultural production systems. However, the potential impacts on crop storage have rarely been assessed, even though storage is an important component of a grower’s marketing strategy and is essential for the continuous supply of a commodity for processors, exporters, and consumers. The Michigan chip-processing potato industry provides an example of the importance of crop storage. Michigan is the largest producer of chip-processing potatoes in the USA, and potatoes are stored on farms from September to June. We use an ensemble of climate projections developed for three future time slices (early, mid, and late century) from 16 climate models forced by three greenhouse gas concentration pathways to assess future changes in potato storage conditions. Our findings indicate an increased future demand for ventilation and/or refrigeration immediately after harvest and again in spring and early summer, even for the early-century time slice. Furthermore, the period of reliably cold storage temperatures during winter is anticipated, when averaged across all models, to shorten by 11–17 days in Michigan’s primary production area and 14–20 days in the more southern secondary area by mid-century, and by 15–29 days and 31–35 days, respectively, for the northern and southern production areas by late century. The level of uncertainty, as indicated by the ensemble range, is large, although the sign of the projected changes in storage parameters is consistent. This case study provides an example of the potentially large effects of climate change on the storage conditions for agricultural commodities. |
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