AGN 143 EXAM 2 Question and answers 100% correct 2024/2025
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Course
AGN 143
Institution
AGN 143
AGN 143 EXAM 2 Question and answers 100% correct 2024/2025 AGN 143 EXAM 2
A forest stand that is composed principally of one species that makes up at least 80% of the stand is a - correct answer Pure stand
Understory re-initiation - correct answer Mortality in the canopy creates openings...
AGN 143 EXAM 2
A forest stand that is composed principally of one species that makes up at
least 80% of the stand is a - correct answer ✔Pure stand
Understory re-initiation - correct answer ✔Mortality in the canopy creates
openings for new plants to establish
Stand initiation - correct answer ✔Fast-growing, shade-intolerant trees are
common in this stage
Old-growth (complex) - correct answer ✔Productivity equals zero because
growth balances mortality
Stem exclusion - correct answer ✔Period of intense competition where
canopy differentiation begins
You measure a northern red oak tree and get a DBH of 18 inches. What is the
basal area (BAt) of this tree? Be sure to round your answer up to the nearest
tenth (one decimal place) and choose the closest answer. - correct answer
✔1.8 ft^2
You measure a fixed-area 1/10th acre plot and tally 5 trees in the plot. What is
the plot-level estimate of trees per acre (TPAp)? - correct answer ✔50 tpa
Say you have a forest stand with a mean DBH of 12 inches. If you want to do
a Goemetric Thin to reduce stocking to B-level stocking, what spacing would
you use? - correct answer ✔24ft x 24ft
, Say you have a forest stand with a mean DBH of 9 inches. If you want to do a
Geometric Thin to reduce stocking to B-level stocking, what spacing would
you use? - correct answer ✔18ft x 18ft
You measure a shagbark hickory and get a DBH of 7 inches. What is the
basal area (BAt) of this tree? Be sure to round your answer up to the nearest
tenth (one decimal place) and choose the closest answer. - correct answer
✔0.3 ft2
If a fixed area plot has 5 tallied trees and a plot-level TPAp of 100, what is the
plot size? - correct answer ✔1/20th acre
A forest stand that is composed of multiple species, each making up less than
80% of the stand is a - correct answer ✔mixed stand
Epicormic branching can often increase under conditions of - correct answer
✔low stand density
Another name for Geometric Thinning is - correct answer ✔basal area
thinning
A forest stand is Understocked if - correct answer ✔trees do not use all
available growing space
A multiple cohort stand is also referred to as a - correct answer ✔uneven
aged stand
The primary purpose of thinning is to reduce stand density to allow the tree
_________ room to grow - correct answer ✔crowns
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