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### 12 Cards in this Set

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 how to calculate basal area BA= (3.14 pie) r 2 initial floristics =species are already established (weeds, shrubs, trees all present) how to calculate volume V= 1/2 X (Ab + Au) X L divided by 10 000 relay floristics =distinct different species coming in at a time (weeds-then shrubs-then trees) dbh Ht DSH Ab Au V dbh= diameter breast height Ht= height DSH= diameter stump height Ab= basal area at stump Au= basal area at tree top V= log volume aerial photographs -serve as a basis for making decisions in the forest -used in forest management perimeter of a circle =is less than a square fixed (area) -mark out section of a hectare, don't use entire hectare 3 ways to calculate height? a. clinometer instrument b. abney instrument c. builtmoor stick 3 ways to take diameter measurement a. with calipur b. diameter tape c. builtmoor, meter stick 2 ways to calculate volume of wood in an area 1. fixed plot system 2. variable plot system variable plot method sum of all "in" trees + 1/2 of borderline trees X BAF = basal area/hectare m2