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Statistical Approach. try to understand the R simulation needed what kind of distribution will I ask R to use? Where will I get a reasonable starting.

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Presentation on theme: "Statistical Approach. try to understand the R simulation needed what kind of distribution will I ask R to use? Where will I get a reasonable starting."— Presentation transcript:

1 Statistical Approach

2 try to understand the R simulation needed what kind of distribution will I ask R to use? Where will I get a reasonable starting point for the magnitude of that variability. Where will I get guesses for realistic variability so I’m not fixing the game.

3 Well Native Pasture Dryland Pasture w/ fence Planned Fence-line Hayed Anually Fileds Spring Rented Tree Rows

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8 Anticipating the End: For Each Parcel: Old Attributes Possible Interventions Use Yield – Cost Decision

9 Yield

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11 NRCS ARC-GIS Soil

12 Soil Values for Forage Production

13 USDA One AUM = 915 pounds. Given: Annual forage production = 900 pounds per acre. AUM per acre = (900 pounds per acre) x (25 percent grazing efficiency) = (225 pounds available forage per acre) / (915 pounds per AUM) = 0.25 AUM per acre. Range Science: 1000 lb. Cow with calf consumes - 26 lbs of dry forage per day -760 lbs of dry forage per month 1 Animal Unit Month (AUM) = 760 lbs. of dry forage Calculating Rangeland Production 1. 2.

14 Soil Values for Spring and Winter Wheat Mean Year Only

15 Yields Multiply by 915Multiply by 780 Hay Yield:

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17 R

18 Vector of soil types for each parcel Forage Yield Equation Wheat Yield Equation Hay Equation AUM Equation Income- cost Equation Stocking Rate Income- cost Equation Compare to Current Use Make Decision Cumulative Parcel Data

19 Yield Range Simulation: Mean Year Stocking Rate Decision Cumulative Parcel Data


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