pp: Permanent plot data in long format.
In nverno/moosedata: Moosilauke data

Description Usage Format

A dataset containing tree data collected from the 80's to until most recently in 2011. The cleaned version in long format. Some of the variables have been dropped from the raw version.

pp

A data frame with 19011 rows and 43 variables.

PPLOT: Permanent plot number
SPLOT: Subplot number
SPLOT98: Subplot number before correction in 2010.
SPCRT: SPCRT=1 if it’s a subplot that got corrected after 1998 basing on BQUDX/BQUDY data.
BQUDX: Quadrat number along X-axis (North -> West). When missing, same procedure was followed as that for BQCRDX.
BQUDY: Quadrat number along Y-axis (North -> East). Same qualifications as BQUDX.
BQCRDX: Distance along X axis (North -> West) within a 2x2 quadrat from center of the plant. Only recorded for 1986 tagged trees, 1987 tagged trees and saplings, 1988 tagged saplings, and 1998 tagged trees and saplings. When missing, and BPCRDX or BPCRDY were available, they were calculated from those variables.
BQCRDY: Distance along Y axis (North -> East) within 2x2 quadrat. Same qualifications as BQCRDX.
BPCRDX: Distance along X axis (North -> West) from center of the plant within the whole plot. When missing, this variable was calculated from BPCRDX and BPCRDY, or BQUDX and BQUDY.
BPCRDY: Distance along Y axis (North -> East) from center of the plant within the whole plot. Same qualifications as BPCRDX.
CQUDX86: Quadrat number along X axis (North -> West) from center of tree crown collected in 1986 only.
CQUDY86: Quadrat number along Y axis (North -> East) from center of tree crown collected in 1986 only.
CQCRDX86: Distance along the X axis (North -> West) with 2x2 meter quadrat from the center of the crown. Collected in 1986 only.
CQCRDY86: Distance along the Y axis (North -> East) with 2x2 meter quadrat from the center of the crown. Collected in 1986 only.
CSAP8788: Indicates if all saplings in a subplot were tagged ('Y'/'N').
CSAP98: Indicates if all saplings in a subplot were tagged ('Y'/'N').
TAG: Tree tag number used since 1998. Duplicated tags were marked (add .1 to the duplicated TAG number).
TAGOLD: Old tag numbers used in 1986, 1987, 1988.
SPEC: Tree species abbreviation
CLASS: Type of sampling location:
P: Permanent Plot
: Permanent Plot