Point sampling

POINT SAMPLING-COMPUTE TREES PER ACRERequires tallies of trees in each diameter class (diametersof tallied trees were measured during point cruise)TF i=unit areasample area=⎛⎜⎝BAF ⎞⎟BA per tree ⎠TPA⎛ ∑ ni× TF= ⎜⎝ nsampleipoints⎞⎟⎠Per - acre conversion factor:"TREE FACTOR" for each diameter class iTFi⎛ 43,560⎜⎝π (dbh×plot radius factor)= 2⎞⎟⎠TPA =⎛ (no.trees tallied)(per − acre conversion factor) ⎞⎜⎟⎝total number of points⎠