Data on weights and lengths from retrospective growth analysis of different stem age classes of Betula nana ramets from the Arctic LTER Nutrient and Warming manipulations in mosit acidic tussock tundra at 1995, Toolik Lake, AK.

Abstract: 

This data file contains the data on weights and lengths from retrospective growth analysis of different stem age classes of Betula nana ramets from the Arctic LTER Nutrient and Warming manipulations in moist acidic tussock tundra at Toolik Lake.

Project Keywords: 

Data set ID: 

1414

EML revision ID: 

5

Short name: 

95gsbnana

DOI: 

10.6073/pasta/e000a9e4cc98e60d1ed631d68b26246b
People

Keywords: 

Arctic LTER keywords: 

Taxa: 

Dates

Date Range: 

Thursday, June 1, 1995 to Friday, September 1, 1995

Publication Date: 

Saturday, December 12, 1998

Methods: 

The experiment is the LTER nutrient by warming factorial treatments, which has 4 randomized blocks (Shaver et al.?). We randomly collected 3 individual ramets of Betula nana from each treatment within each block. The most recent 15 years of growth were analyzed for each ramet. Stems were cut and cross-sections made by hand with a razor blade. Ages were determined by staining the sections with 1% phloroglucinol in 20% HCl and counting the growth rings using a compound light microscope at 100x magnification. Stems were separated into different age classes trying to get at least one piece with same age on both ends for each age class. Lengths and weights of pooled segments for a given age class were determined after drying samples at 70 degrees C for 48 hours.
Because no external bud scars were usually visible, the boundary between age classes of stems usually could not be known with certainty. The lengths and weights of stem pieces that overlapped one year boundary were assigned half to one age and half to the next. Lengths and weights of pieces that overlapped more than one age class were assigned to the different age classes by dividing by one less than the number of years covered, and assigning half that amount to the two end pieces and the whole amount to intervening years, to avoid a bias toward the end pieces. When the end of the piece was the bottom of a branch, and therefore that boundary was known with certainty, the piece was divided by x.5, where x is one less than the number of years that the piece overlapped. Half that amount was assigned to the upper part of the segment, where the boundary was not known with certainty, while the whole amount was assigned to the other year classes covered by that piece, including the oldest piece. These procedures avoided a bias in assigning weight and length disproportionately to the years where a cut was made.
Betula nana makes two types of stem segments, short shoots and long shoots. Long shoots could be aged by making stem cross-sections, but short shoots could not because they have so little secondary growth. However, the maximum age of short shoots is one year less than the long shoot to which they are attached. Short shoot weight and length was assigned by dividing the total weight or length by the maximum age of those shoots and assigning that to each year class up to that age. Short shoots occasionally convert to long shoots, in which case they put on secondary growth and behave like a long shoot from then on (but obviously the stem segments covering the period of short shoot growth do not increase in length). These conversions from short to long shoots were classified separately in the data table.

Notes: Betula nana rep 1 from block 3 was excluded because it was diseased. No other data is missing. Data in columns with stippled headings were measured data, other columns are calculated from that data. Data from pieces that were overlapping age classes but were not conversions are entered in measured data columns as additions onto the original numbers (e.g. the formula shows =x+y+z).

See paper: Bret-Harte, M.S., G.R. Shaver, and F.S. Chapin III. 2002. Primary and secondary stem growth in arctic shrubs: implications for community response to environmental change. Ecology 90: 251-267.

Sites sampled.

Download a comma delimited (csv) or Excel file (includes metadata and data sheets).

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File 95gsbnana.csv

Data on weights and... File Details

Office spreadsheet icon 95gsbnana.xls

Excel file with... File Details

Variables Details

(Variables names are in the first line/row of the CSV file and Excel data sheet.)
Treatmt
  • Label: Treatmt
  • Definition: Treatment (control, fertilized, greenhouse, greenhouse*fertilized)
  • Type: Nominal
  • Missing values: None specified
Treatmt code
  • Label: Treatmt code
  • Definition: Treatment coded numerically (1,2,3,4)
  • Type: Nominal
  • Missing values: None specified
Block
  • Label: Block
  • Definition: Block number (1-4)
  • Type: Nominal
  • Missing values: None specified
Rep
  • Label: Rep
  • Definition: Replicate number (1-3)
  • Type: Nominal
  • Missing values: None specified
Year
  • Label: Year
  • Definition: Year when that stem age class was created
  • Type: Date/time
  • Date format: yyyy
  • Missing values: None specified
Age
  • Label: Age
  • Definition: Stem age classes, whose age is counted backward from the present in this study (1995 = year 0, 1994 = year 1, etc)
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total ls branches
  • Label: total ls branches
  • Definition: # of long shoot branches in that age class
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total struct branches
  • Label: total struct branches
  • Definition: # of long shoot branches + number of short shoot branches that subsequently converted into long shoots (conversions) in that age class
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Length, mm
  • Label: Length, mm
  • Definition: Length, in mm, of all long shoots in that age class
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Wt, mg
  • Label: Wt, mg
  • Definition: Weight, in mg, of all long shoots in that age class
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Age class
  • Label: Age class
  • Definition: Age classes that overlap one year boundary
  • Type: Nominal
  • Missing values: None specified
LS boundary lnth (mm)
  • Label: LS boundary lnth (mm)
  • Definition: Length in mm of all long shoot stem segments that overlap the given age classes
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
LS boundary lnth/2
  • Label: LS boundary lnth/2
  • Definition: Half of the variable just mentioned
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total length LS (mm)
  • Label: total length LS (mm)
  • Definition: Length + LS boundary length/2 for each age class (mm)
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
LS boundary wt (mg)
  • Label: LS boundary wt (mg)
  • Definition: Weight in mm of all long shoot stem segments that overlap the given age classes (mg)
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
LS boundary wt/2
  • Label: LS boundary wt/2
  • Definition: Half of the variable just mentioned
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total wt LS (mg)
  • Label: total wt LS (mg)
  • Definition: Weight + LS boundary weight/2 for each age class (mg)
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ls mm/segment
  • Label: ls mm/segment
  • Definition: total length of an age class divided by the number of long shoots in that age class
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ls mg/segment
  • Label: ls mg/segment
  • Definition: total weight of an age class divided by the number of long shoots in that age class
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ls mg/mm
  • Label: ls mg/mm
  • Definition: total weight of an age class divided by the total length of that age class
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Age
  • Label: Age
  • Definition: Age classes
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
conversion #
  • Label: conversion #
  • Definition: Number of branches that were converted short shoots in that age class
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
conversion lnth (mm)
  • Label: conversion lnth (mm)
  • Definition: Length of conversions in that age class (mm) = The sum of the total length of a conversion divided by the number of years it was a short shoot, for all conversions that were short shoots during that year.
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
conversion wt (mg)
  • Label: conversion wt (mg)
  • Definition: Weight of conversions in that age class (mg) = The sum of the total weight of a conversion divided by the number of years it was a short shoot, for all conversions that were short shoots in that year
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total # conversion events
  • Label: total # conversion events
  • Definition: Total number of conversion events, from the maps. (Not all conversions were saved, so this number will not necessarily reflect the numbers in the "conversion #" column, which only refers to those conversions that were weighed and measured.
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
# conversions post treatment (<=yr6)
  • Label: # conversions post treatment (<=yr6)
  • Definition: total number of conversion events (from the maps) that occurred after the LTER treatment began.
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Total lnth struct branches
  • Label: Total lnth struct branches
  • Definition: total length of structural branches = sum of total length LS and conversion length for each age class
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Total wt struct branches
  • Label: Total wt struct branches
  • Definition: total weight of structural branches = sum of total weight LS and conversion weight for each age class
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
str. mm/segment
  • Label: str. mm/segment
  • Definition: length per segment of structural branches, = total lnth struct divided by total number of structural branches
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
str. mg/segment
  • Label: str. mg/segment
  • Definition: weight per segment of structural branches = total wt struct divided by total number of structural branches
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
str. mg/mm
  • Label: str. mg/mm
  • Definition: total weight of structural branches divided by total length of structural branches
  • Type: Nominal
  • Missing values: None specified
Max age SS
  • Label: Max age SS
  • Definition: maximum age of short shoots, same as Age above
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
#SS
  • Label: #SS
  • Definition: number of short shoots having that maximum age
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
lnth SS (mm)
  • Label: lnth SS (mm)
  • Definition: total length of short shoots in that maximum age class (mm)
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
wt SS (mg)
  • Label: wt SS (mg)
  • Definition: total weight of short shoots in that maximum age class (mg)
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
#SS 1 yr span
  • Label: #SS 1 yr span
  • Definition: number of short shoots which covered a range of years not going to the present, but did not convert to long shoots (for example, the portion of a short shoot below a branch point into several more short shoots
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
lnth SS 1yr span
  • Label: lnth SS 1yr span
  • Definition: length of the short shoots covering a range of years not going to the present (see note for # SS 1-year span above)
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
wt SS 1 yr span
  • Label: wt SS 1 yr span
  • Definition: weight of short shoots covering a range of years not going to the present (see note for # SS 1-year span, above)
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ss lnth/#
  • Label: ss lnth/#
  • Definition: length of short shoots in a maximum age class divided by the number in that class
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ss lnth/yr
  • Label: ss lnth/yr
  • Definition: average length of short shoots per year = length of short shoots in a maximum age class divided by the age of that class
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ss lnth/#/yr
  • Label: ss lnth/#/yr
  • Definition: length of short shoots in a maximum age class divided by the number of shoots in that class and the age of the class
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total surviving ss lnth/yr
  • Label: total surviving ss lnth/yr
  • Definition: The sum of the average short shoot length per year from that age to the oldest living short shoots, plus any short shoot lengths from the "1-year span" short shoots. This is the total amount of short shoot length put on in a given year. As an example, the short shoot length put on in year 3 will be the average length per year of the maximum age 3 short shoots, and also the contributions in year 3 from the maximum age 4, 5, 6,... etc. short shoots, since they would also be living and growing in year 3, but not the 1 or 2 year old short shoots, since they hadn't been formed yet.
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ss wt/#
  • Label: ss wt/#
  • Definition: weight of short shoots in a maximum age class divided by the number in that class
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ss wt/yr
  • Label: ss wt/yr
  • Definition: average weight of short shoots per year = weight of short shoots in a maximum age class divided by the age of that class
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ss wt/#/yr
  • Label: ss wt/#/yr
  • Definition: weigh of short shoots in a maximum age class divided by the number of shoots in that class and the age of the class
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total surviving ss wt/yr
  • Label: total surviving ss wt/yr
  • Definition: The sum of the average short shoot weight per year from that age to the oldest living short shoots, plus any short shoot weights from the "1-year span" short shoots. This is the total amount of short shoot weight put on in a given year. As an example, the short shoot weight put on in year 3 will be the average weight per year of the maximum age 3 short shoots, and also the contributions in year 3 from the maximum age 4, 5, 6,... etc. short shoots, since they would also be living and growing in year 3, but not the 1 or 2 year old short shoots, since they hadn't been formed yet.
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
totl#surviving SS/yr
  • Label: totl#surviving SS/yr
  • Definition: The number of currently surviving short shoots that were growing in a given year. Calculated analogously to the total surviving SS weight and number per year, as the sum of all short shoots of a given age up to the oldest surviving short shoots, as all of those would be growing during that year.
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Conversion lnth + SS lnth (mm)
  • Label: Conversion lnth + SS lnth (mm)
  • Definition: Length of conversions plus total surviving short shoot length in that year
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Conversion wt + SS wt (mg)
  • Label: Conversion wt + SS wt (mg)
  • Definition: Weight of conversions plus total surviving short shoot weight in that year
  • Type: Nominal
  • Missing values: None specified
ages with ss
  • Label: ages with ss
  • Definition: the values of the age classes that had living short shoots, used to calculate the next variable...
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
max age ss (yr)
  • Label: max age ss (yr)
  • Definition: the age of the oldest living short shoot for that ramet
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Total CY wt (mg)
  • Label: Total CY wt (mg)
  • Definition: weight of the year 0 (current year's) leaves and stems (mg)
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
new SS (age 0)
  • Label: new SS (age 0)
  • Definition: the number of short shoots initiated in the current year
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Total living SS
  • Label: Total living SS
  • Definition: the total number of living short shoots, of all ages
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
year 0 ls
  • Label: year 0 ls
  • Definition: the number of long shoots initiated in the current year
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ls/tvs
  • Label: ls/tvs
  • Definition: the number of year 0 long shoots divided by the sum of year 0 long shoots and total living SS
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
ls/new tvs
  • Label: ls/new tvs
  • Definition: the number of year 0 long shoots divided by the sum of year 0 long shoots and year 0 short shoots
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total lgp (veg+inf)
  • Label: total lgp (veg+inf)
  • Definition: The total number of living growing points = sum of year 0 long shoots, total living short shoots, and inflorescences that were not included in one of the preceding categories. (Current year's inflorescences were not included in current year's short or long shoots, but next year's inflorescence buds were included in current year's long or short shoots)
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Total weight(ss + ls)
  • Label: Total weight(ss + ls)
  • Definition: The total weight of structural branches plus total surviving ss weight per year
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Total length (ss + ls)
  • Label: Total length (ss + ls)
  • Definition: The total length of structural branches plus total surviving ss lnth per year
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Total number (ls +ss)
  • Label: Total number (ls +ss)
  • Definition: The total number of short and long shoot branches, = total # structural branches + total #surviving ss per year
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum. # ls
  • Label: cum. # ls
  • Definition: cumulative number of long shoots segments = sum of the number of branches in that age class and the number in all younger age classes.
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum. # struct. branches
  • Label: cum. # struct. branches
  • Definition: analogous sums for structural branches and total branches (total # (ls + ss))
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum. # total branches
  • Label: cum. # total branches
  • Definition: analogous sums for structural branches and total branches (total # (ls + ss))
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum lnth ls
  • Label: cum lnth ls
  • Definition: analogous sums for length values for the different age classes- see discussion for cumulative numbers, above.
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum lnth struct branches
  • Label: cum lnth struct branches
  • Definition: analogous sums for length values for the different age classes- see discussion for cumulative numbers, above.
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum lnth total branches
  • Label: cum lnth total branches
  • Definition: analogous sums for length values for the different age classes- see discussion for cumulative numbers, above.
  • Type: Physical quantity
  • Unit: millimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum wt ls (mg)
  • Label: cum wt ls (mg)
  • Definition: analogous sums for weight values for the different age classes- see discussion for cumulative numbers, above.
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum wt struct. branches
  • Label: cum wt struct. branches
  • Definition: analogous sums for weight values for the different age classes- see discussion for cumulative numbers, above.
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum wt total
  • Label: cum wt total
  • Definition: analogous sums for weight values for the different age classes- see discussion for cumulative numbers, above.
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
cum ss wt/cum total wt
  • Label: cum ss wt/cum total wt
  • Definition: the fraction of the total cumulative weight that is short shoots, = 1 - (cum wt struct/cum wt total)
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total# dead branches
  • Label: total# dead branches
  • Definition: The total number of attached dead branches in the ramet (only those that have at least some long shoot component, not just dead short shoots) from the maps
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total# dead branches/total stem biomass
  • Label: total# dead branches/total stem biomass
  • Definition: The number of dead branches divided by the cumulative total weight of stems (year 15 of cum wt total)
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total # dead gp
  • Label: total # dead gp
  • Definition: The total number of dead growing points, = sum of long shoots and short shoots on those attached dead branches (does not include dead short shoots attached to living stems)
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total #dead gp/total wt
  • Label: total #dead gp/total wt
  • Definition: Total number of dead growing points divided by the cumulative total weight in year 15
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total dead struct
  • Label: total dead struct
  • Definition: The total number of dead long shoots in the attached dead branches. Since the age structure of the dead branches was not determined, this is the number of long shoot branch points in the attached dead branches
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total dead struct/total wt
  • Label: total dead struct/total wt
  • Definition: As above, the dead structural branches divided by year 15 of cum wt total
  • Type: Physical quantity
  • Unit: dimensionless
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total live struct br.
  • Label: total live struct br.
  • Definition: The number of branch points of long shoots in the living wood. Not the same as the number of segments in each age class, because sometimes long shoots convert back to being short shoots, in which case they do not show up in subsequent (younger) age classes.
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
total dead struct/(total live + dead struct)
  • Label: total dead struct/(total live + dead struct)
  • Definition: the number of attached dead long shoot branch points divided by the total live and dead branch points, a measure of mortality
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Inflorescences total #
  • Label: Inflorescences total #
  • Definition: The number of inflorescences, either current year or next year's buds, depending on the replicate number.
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Inforescences total wt
  • Label: Inforescences total wt
  • Definition: The weight of inflorescences, either current year or next year's buds, depending on the replicate number.
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Inforescences wt/inf.
  • Label: Inforescences wt/inf.
  • Definition: The weight divided by number of inflorescences, either current year or next year's buds, depending on the replicate number.
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Dead: Age attached living
  • Label: Dead: Age attached living
  • Definition: the age of the living branch to which the dead was attached
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Dead: Age dead
  • Label: Dead: Age dead
  • Definition: the age at the base of the dead branch, if known
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Dead: Lateral branch? (-1)
  • Label: Dead: Lateral branch? (-1)
  • Definition: -1 if the dead branch was a lateral, 0 if it was not
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Dead: total #gp
  • Label: Dead: total #gp
  • Definition: total number of growing points (short and long shoots) on that dead branch
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Dead: total # struct
  • Label: Dead: total # struct
  • Definition: the total number of long shoot branch points in that attached dead branch
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Dead: Years ago died:
  • Label: Dead: Years ago died:
  • Definition: How long ago that attached branch system died, if known
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Dead: Total wt dead
  • Label: Dead: Total wt dead
  • Definition: total weight of all attached dead branches
  • Type: Physical quantity
  • Unit: milligram
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values: None specified
Comments:
  • Label: Comments:
  • Definition: Comments if needed for each row of data
  • Type: Nominal
  • Missing values: None specified