TallyLake: Tally Lake, Flathead National Forest, Montana, USA

Description

Polygon-based reference data used by Stage and Crookston (2007) to demonstrate partitioning of error components and related statistics. Observations are summaries of data collected on forest stands (ploygons).

Usage

data(TallyLake)

Arguments

format

A data frame with 847 rows and 29 columns: Ground based measurements of trees (Y-variables):

TopHt

{Height of tallest trees (ft)} LnVolL{Log of the volume $(ft^3/acre)$ of western larch} LnVolDF{Log of the volume $(ft^3/acre)$ of Douglas-fir} LnVolLP{Log of the volume $(ft^3/acre)$ of lodgepole pine} LnVolES{Log of the volume $(ft^3/acre)$ of Engelmann spruce} LnVolAF{Log of the volume $(ft^3/acre)$ of alpine fir} LnVolPP{Log of the volume $(ft^3/acre)$ of ponderosa pine} CCover{Canopy cover (percent)}

itemize

ctim

item

utmy
elevm
eevsqrd
slopem
slpcosaspm
slpsinaspm
tmb1m
tmb2m
tmb3m
tmb4m
tmb5m
tmb6m
durm
insom
msavim
ndvim
crvm
tancrvm
tancrvsd

eqn

$(elevm-1600)^2$

source

USDA Forest Service

References

Stage, A.R.; Crookston, N.L. 2007. Partitioning error components for accuracy-assessment of near neighbor methods of imputation. For. Sci. 53(1):62-72 http://www.treesearch.fs.fed.us/pubs/28385 Stage, A.R. (1976). An expression for the effect of aspect, slope, and habitat type on tree growth. For. Sci. 22(4):457-460.