X
M Chemical plant
Dot
..
map of damaged trees
condition class 2
condition class 3
condition class 4
oz
X=
y X 2 Isopollutes ($ of damaged trees
per ha)
3a Linear trend surface (2=0.22 + 0.26X - 0.02Y R= 0.32)
b Residuals from 3a (number of damaged trees/ha)
42a Non-linear surface using Krumbein's expected-value
p
method (number of damaged trees/ha)
b Residuals from 4a
5 Potential surface (isopotentials : number of damaged
trees/ha/km)
Further explanation see text. 0 Ten
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