1. Go to https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm
2. Click on ‘START WSS’.
3. Click on ‘Area of Interest (AOI)’.
4. Click ‘Quick Navigation’ and ‘Address’. Enter the address of the desired location.
5.Click the ‘AOI’ button above the map and select the desired area. To get a representative area, use the rectangle tool to select the whole screen.
6.Click on ‘Soil Data Explorer’ and then ‘Soil Reports’.
7. Click ‘Vegetative Productivity’ in the left column.
8. Click ‘Non-irrigated Yields by Map Unit’ and select ‘alfalfa’, 'alfalfa hay' or other desired type of vegetation. If 'Non-irrigated Yields by Map Unit' produces no data, try using 'Non-irrigated Yields by Component'. This gives accurate data by analyzing the soil distributions in a different way.
9. Click ‘Sustainabilities and Limitations for Use’ and note all of the values for 'Rating' that are present. If there are very few values, select a similar type of vegetation and run the numbers again.
11. The 'Rating' value has units of 'tons'. This is assumed to be tons per year based on the Soil Survey website. Divide all values for 'Rating' (tons/yr) by the corresponding values for ‘Acres in AOI’ to get the number of tons/acre/yr for each type of soil. Use the largest of these values for the following calculations.
12. Because these are values for dry matter, multiply ‘tons/acre/yr’ by 3.333 to account for the moisture factor.
13. Divide this value by .00110231 to convert to ‘kg/acre/yr’.
14. Divide this value by the number of days in a growing season (approx 180).
15. Divide the above value by 2x and 4x the average weight of a doe (3.2 kg) to find the number of rabbits/acre that can be sustained.
These instructions will give values for the approximate number of rabbits that can be sustained per acre on locally grown vegetation (in backyards and fields within the AOI).
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