Identify suitable land area where a specific tree type can grow

Hope-Hauptman

I have four separate layers: mean annual precipitation (shp), temp min (shp), temp max (shp) and elevation (raster). I have two goals:

1. To locate possible areas that are suitable for tree growth using the following specific parameter ranges within those layers and visualize those areas on a map. 

Mean annual precipitation	100 to 300 mm/per year
Temperature  minimum	Greater than 3°C
Temperature maximum	Lower than 50°C
Elevation	250 to 1300 meters

 

2. To calculate the total area (km^2) of land that that has the above parameters. 

I tried using four different definition queries for each layer but this does not make an overall map that has the criteris above and it also does not allow me to calculate area. I am not sure where to begin to create a workflow for this. 

 

DavidPike

Seems like a basic MCA question.  It seems you've applied the right definition queries to limit the areas you need, however you now need to find the intersection of these layers https://pro.arcgis.com/en/pro-app/latest/tool-reference/analysis/intersect.htm

Have you reclassified the Raster?  You can use raster calculator (something like Con statement to reclassify), Reclassify tool and then raster to polygon the remaining values.  that polygon will be your matching elevation area.  Intersect all of these and that's your area which matches all the criteria.  

Ensure the data is projected and then just calculate geometry attributes, or copy to a feature class and look at the shape area (beware probably m^2 i.e divide by a million) perhaps but unlikely ft^2 depending on your projection.