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caption: 'Iowa is the nation’s top corn and soybean producing state. These crops are planted in the spring. Heavy rain can delay planting and create problems in obtaining a good stand of plants, both of which can reduce crop productivity. In Iowa soils with even modest slopes, rainfall of more than 1.25 inches in a single day leads to runoff that causes soil erosion and loss of nutrients and, under some circumstances, can lead to flooding. The figure shows the number of days per year during which more than 1.25 inches of rain fell in Des Moines, Iowa. Recent frequent occurrences of such events are consistent with the significant upward trend of heavy precipitation events documented in the Midwest.<tbib>0ebef171-4903-4aa6-b436-2936da69f84e</tbib><sup>,</sup><tbib>f054a8d1-8992-41ed-bc20-5f56070df30a</tbib> (Figure source: adapted from Takle 2011<tbib>6b059ace-63ae-4fbe-a3a0-b503970e8bb5</tbib>).'
chapter:
  description: ~
  display_name: 'Chapter 6: Agriculture'
  doi: 10.7930/J02Z13FR
  identifier: agriculture
  number: 6
  report_identifier: nca3
  sort_key: 60
  title: Agriculture
  url: http://nca2014.globalchange.gov/report/sectors/agriculture
chapter_identifier: agriculture
cited_by: []
contributors: []
create_dt: ~
description: 'Iowa is the nation’s top corn and soybean producing state. These crops are planted in the spring. Heavy rain can delay planting and create problems in obtaining a good stand of plants, both of which can reduce crop productivity. In Iowa soils with even modest slopes, rainfall of more than 1.25 inches in a single day leads to runoff that causes soil erosion and loss of nutrients and, under some circumstances, can lead to flooding. The figure shows the number of days per year during which more than 1.25 inches of rain fell in Des Moines, Iowa. Recent frequent occurrences of such events are consistent with the significant upward trend of heavy precipitation events documented in the Midwest.<tbib>0ebef171-4903-4aa6-b436-2936da69f84e</tbib><sup>,</sup><tbib>f054a8d1-8992-41ed-bc20-5f56070df30a</tbib> (Figure source: adapted from Takle 2011<tbib>6b059ace-63ae-4fbe-a3a0-b503970e8bb5</tbib>).'
display_name: '6.9: Increasing Heavy Downpours in Iowa'
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href: http://52.38.26.42:8080/report/nca3/chapter/agriculture/figure/increasing-heavy-downpours-in-iowa.yaml
identifier: increasing-heavy-downpours-in-iowa
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    uri: /reference/0ebef171-4903-4aa6-b436-2936da69f84e
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report:
  display_name: 'Climate Change Impacts in the United States: The Third National Climate Assessment'
report_identifier: nca3
source_citation: 'adapted from Takle 2011<tbib>6b059ace-63ae-4fbe-a3a0-b503970e8bb5</tbib>'
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title: Increasing Heavy Downpours in Iowa
type: figure
uri: /report/nca3/chapter/agriculture/figure/increasing-heavy-downpours-in-iowa
url: http://nca2014.globalchange.gov/report/sectors/agriculture/graphics/increasing-heavy-downpours-iowa
usage_limits: Copyright protected. Obtain permission from the original figure source.