NRM Exam 3 Forest Inventory Line Plot
Method
strip line plot characteristics - correct answer-has a starting point
measured over a certain distance
measures along a certain bearing
precent cruise equation for the line-plot method - correct answer-% cruise = area
sampled / total tract area
what determines plot size for line plots - correct answer-tree size
what determines the precent cruise for line plots - correct answer-acreage
reasoning for cruising
forest variation
what is the precent cruise - correct answer-area sampled / total tract
what factors into the size of the precent cruise - correct answer-acreage: tract size
objective: timber sale or management plan
variability: species composition and tree density
financial considerations
equation to determine the spacing of the plots - correct answer-LP = (size of plot x 10) /
(% cruise)
size of plot and precent cruise are decimals
which one should be longer: L(ine) or P(lot) - correct answer-L
what are the units of L and P - correct answer-chains
what are the steps of the line plot method - correct answer-start at the starting point in a
corner, then move a half of P into the plot, then turn perpendicular to the line you just
walked and move L to the next plot and do that until you reach the end, if you reach the
end and you haven't completely gone the distance of L, go the remaining distance down
the next row: distance remaining from last plot to boundary is carried over to the first
plot on second line
what is the plot lands on the boundary - correct answer-before the field: establish what
your procedure will be before heading into the field to prevent bias
Method
strip line plot characteristics - correct answer-has a starting point
measured over a certain distance
measures along a certain bearing
precent cruise equation for the line-plot method - correct answer-% cruise = area
sampled / total tract area
what determines plot size for line plots - correct answer-tree size
what determines the precent cruise for line plots - correct answer-acreage
reasoning for cruising
forest variation
what is the precent cruise - correct answer-area sampled / total tract
what factors into the size of the precent cruise - correct answer-acreage: tract size
objective: timber sale or management plan
variability: species composition and tree density
financial considerations
equation to determine the spacing of the plots - correct answer-LP = (size of plot x 10) /
(% cruise)
size of plot and precent cruise are decimals
which one should be longer: L(ine) or P(lot) - correct answer-L
what are the units of L and P - correct answer-chains
what are the steps of the line plot method - correct answer-start at the starting point in a
corner, then move a half of P into the plot, then turn perpendicular to the line you just
walked and move L to the next plot and do that until you reach the end, if you reach the
end and you haven't completely gone the distance of L, go the remaining distance down
the next row: distance remaining from last plot to boundary is carried over to the first
plot on second line
what is the plot lands on the boundary - correct answer-before the field: establish what
your procedure will be before heading into the field to prevent bias
