Crop%20Yield%20in%20North%20Dakota%20as%20a%20function%20of%20Precipitation

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Crop Yield in North Dakota as a function of
Precipitation

• Tyler McEwen
• GIS in Water Resources
• Term Project Presentation
• 12/7/2006

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Presentation Overview

• Introduction/Objectives
• Data Collection
• Data Manipulation/Computation
• Results
• Conclusions

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North Dakota Facts

• Largest City Fargo
• Population 90,672
• Total Population
• 636,677
• Total Area
• 68,676 square miles
• 21.0 Total Jobs From Agriculture/Related Work

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Original Objectives

• Obtain soil survey for entire state!!
• Join crops to soil type and Land Use/Land Cover
  (LULC) data
• Precipitation calculations and manipulations
• Interpolate precipitation data
• Create crop yield predictive model

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Current Objectives

• Join crop yield data to county shapefile
• Perform precipitation calculations and
  manipulation
• Interpolate precipitation for 10 years of data
• Create animations of crop yield versus
  precipitation
• Derive correlations

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Data Sources

• National Agricultural Statistics Service (NASS)
  http//www.nass.usda.gov/
• National Climate Data Center Climate Data
  Online http//cdo.ncdc.noaa.gov/CDO\
• National Weather Service OST/SEC GIS Map Group
  http//www.nws.noaa.gov/geodata/catalog/national/h
  tml/us_state.htm
• InfoPlease.com
• http//www.infoplease.com/ipa/A0108256.html

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Precipitation Data

• Approximated growing season dates
• Growing Season (May September)
• Spring durum wheat, corn, barley, sugarbeets,
  flaxseed, soybeans, canola, sunflower, hay and
  potatoes
• Extrapolated precipitation data for growing season

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Data Collection
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Data Collection
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Data Manipulation/Calculation

• Calculated total rainfall during crop growing
  season
• Joined rainfall to precipitation stations
• Interpolated rainfall using Spline method

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Precipitation Interpolation
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Results

• To the animations!

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Conclusions

• No correlation between precipitation and crop
  yieldyet
• East vs. west correlation

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Goals

• Produce more animations
• Find correlation

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Special Thanks

• Grandfather
• Dr. Maidment
• Tyler Jansen
• Fellow students

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Questions???