Variable Name 
Variable Description 
Data Type 
Units 
DateTime Format 
Code Information 
Missing Value Code 
Treatmt$ 
Treatment (control, fertilized, greenhouse, greenhouse*fertilized) 
text 




Treatmt 
Treatment coded numerically (1,2,3,4) 
text 




Block 
Block number (14) 
text 




Rep 
Replicate number (13) 
text 




Year 
Year when that stem age class was created 
datetime 

yyyy 

na=Missing or Not Measured 
Age 
Stem age classes, whose age is counted backward from the present in this study (1995 = year 0, 1994 = year 1, etc) 
number 
number 


na=Missing or Not Measured 
total ls branches 
# of long shoot branches in that age class 
number 
number 


na=Missing or Not Measured 
total struct branches 
# of long shoot branches + number of short shoot branches that subsequently converted into long shoots (conversions) in that age class 
number 
number 


na=Missing or Not Measured 
Length, mm 
Length, in mm, of all long shoots in that age class 
number 
millimeter 


na=Missing or Not Measured 
Wt, mg 
Weight, in mg, of all long shoots in that age class 
number 
milligram 


na=Missing or Not Measured 
Age class 
Age classes that overlap one year boundary 
text 



na=Missing or Not Measured 
LS boundary lnth (mm) 
Length in mm of all long shoot stem segments that overlap the given age classes 
number 
millimeter 


na=Missing or Not Measured 
LS boundary lnth/2 
Half of the variable just mentioned 
number 
millimeter 


na=Missing or Not Measured 
total length LS (mm) 
Length + LS boundary length/2 for each age class (mm) 
number 
millimeter 


na=Missing or Not Measured 
LS boundary wt (mg) 
Weight in mm of all long shoot stem segments that overlap the given age classes (mg) 
number 
milligram 


na=Missing or Not Measured 
LS boundary wt/2 
Half of the variable just mentioned 
number 
milligram 


na=Missing or Not Measured 
total wt LS (mg) 
Weight + LS boundary weight/2 for each age class (mg) 
number 
milligram 


na=Missing or Not Measured 
ls mm/segment 
total length of an age class divided by the number of long shoots in that age class 
number 
millimeterPerUnit 


na=Missing or Not Measured 
ls mg/segment 
total weight of an age class divided by the number of long shoots in that age class 
number 
milligram 


na=Missing or Not Measured 
ls mg/mm 
total weight of an age class divided by the total length of that age class 
number 
milligram 


na=Missing or Not Measured 
Age 
Age classes 
number 
number 


na=Missing or Not Measured 
conversion # 
Number of branches that were converted short shoots in that age class 
number 
number 


na=Missing or Not Measured 
conversion lnth (mm) 
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. 
number 
millimeter 


na=Missing or Not Measured 
conversion wt (mg) 
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 
number 
milligram 


na=Missing or Not Measured 
total # conversion events 
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. 
number 
number 


na=Missing or Not Measured 
# conversions post treatment (less then or equal to yr6) 
total number of conversion events (from the maps) that occurred after the LTER treatment began. 
number 
number 


na=Missing or Not Measured 
Total lnth struct branches 
total length of structural branches = sum of total length LS and conversion length for each age class 
number 
millimeter 


na=Missing or Not Measured 
Total wt struct branches 
total weight of structural branches = sum of total weight LS and conversion weight for each age class 
number 
milligram 


na=Missing or Not Measured 
str. mm/segment 
length per segment of structural branches, = total lnth struct divided by total number of structural branches 
number 
millimeterPerUnit 


na=Missing or Not Measured 
str. mg/segment 
weight per segment of structural branches = total wt struct divided by total number of structural branches 
number 
milligramPerUnit 


na=Missing or Not Measured 
str. mg/mm 
total weight of structural branches divided by total length of structural branches 
number 
milligram 


na=Missing or Not Measured 
Max age SS 
maximum age of short shoots, same as Age above 
number 
number 


na=Missing or Not Measured 
#SS 
number of short shoots having that maximum age 
number 
number 


na=Missing or Not Measured 
lnth SS (mm) 
total length of short shoots in that maximum age class (mm) 
number 
millimeter 


na=Missing or Not Measured 
wt SS (mg) 
total weight of short shoots in that maximum age class (mg) 
number 
milligram 


na=Missing or Not Measured 
#SS 1 yr span 
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: this occurred in Sweden quite often, but not in Alaska, so this variable is seldom if ever used in this data sheet) 
number 
number 


na=Missing or Not Measured 
lnth SS 1yr span 
length of the short shoots covering a range of years not going to the present (see note for # SS 1year span above) 
number 
millimeter 


na=Missing or Not Measured 
wt SS 1 yr span 
weight of short shoots covering a range of years not going to the present (see note for # SS 1year span, above) 
number 
milligram 


na=Missing or Not Measured 
ss lnth/# 
length of short shoots in a maximum age class divided by the number in that class 
number 
millimeterPerNumber 


na=Missing or Not Measured 
ss lnth/yr 
average length of short shoots per year = length of short shoots in a maximum age class divided by the age of that class 
number 
millimeter 


na=Missing or Not Measured 
ss lnth/#/yr 
length of short shoots in a maximum age class divided by the number of shoots in that class and the age of the class 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. 
number 
millimeter 


na=Missing or Not Measured 
total surviving ss lnth/yr 
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 "1year 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. 
number 
millimeter 


na=Missing or Not Measured 
ss wt/# 
Analogous variables to those just described for length, using weight instead (see explanations above) 
number 
milligram 


na=Missing or Not Measured 
ss wt/yr 
Analogous variables to those just described for length, using weight instead (see explanations above) 
number 
milligram 


na=Missing or Not Measured 
ss wt/#/yr 
Analogous variables to those just described for length, using weight instead (see explanations above) 
number 
milligram 


na=Missing or Not Measured 
total surviving ss wt/yr 
Analogous variables to those just described for length, using weight instead (see explanations above) 
number 
milligram 


na=Missing or Not Measured 
totl#surviving SS/yr 
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. 
number 
number 


na=Missing or Not Measured 
Conversion lnth + SS lnth (mm) 
Length of conversions plus total surviving short shoot length in that year 
number 
millimeter 


na=Missing or Not Measured 
Conversion wt + SS wt (mg) 
Weight of conversions plus total surviving short shoot weight in that year 
number 
milligram 


na=Missing or Not Measured 
ages with ss 
the values of the age classes that had living short shoots, used to calculate the next variable. 
number 
number 


na=Missing or Not Measured 
max age ss (yr) 
the age of the oldest living short shoot for that ramet 
number 
number 


na=Missing or Not Measured 
Total CY wt (mg) 
weight of the year 0 (current year's) leaves and stems (mg) 
number 
milligram 


na=Missing or Not Measured 
new SS (age 0) 
the number of short shoots initiated in the current year 
number 
number 


na=Missing or Not Measured 
Total living SS 
the total number of living short shoots, of all ages 
number 
number 


na=Missing or Not Measured 
year 0 ls 
the number of long shoots initiated in the current year 
number 
number 


na=Missing or Not Measured 
ls/tvs 
the number of year 0 long shoots divided by the sum of year 0 long shoots and total living SS 
number 
number 


na=Missing or Not Measured 
ls/new tvs 
the number of year 0 long shoots divided by the sum of year 0 long shoots and year 0 short shoots 
number 
number 


na=Missing or Not Measured 
total lgp (veg+inf) 
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) 
number 
number 


na=Missing or Not Measured 
Total weight(ss + ls) 
The total weight of structural branches plus total surviving ss weight per year 
number 
milligram 


na=Missing or Not Measured 
Total length (ss + ls) 
The total length of structural branches plus total surviving ss lnth per year 
number 
millimeter 


na=Missing or Not Measured 
Total number (ls +ss) 
The total number of short and long shoot branches, = total # structural branches + total #surviving ss per year 
number 
number 


na=Missing or Not Measured 
cum. # ls 
cumulative number of long shoots segments = sum of the number of branches in that age class and the number in all younger age classes. 
number 
number 


na=Missing or Not Measured 
cum. # struct. branches 
analogous sums for structural branches (total # (ls + ss)) 
number 
number 


na=Missing or Not Measured 
cum. # total branches 
analogous sums for total branches (total # (ls + ss) 
number 
number 


na=Missing or Not Measured 
cum lnth ls 
analogous sums for length values for the different age classes see discussion for cumulative numbers, above. 
number 
millimeter 


na=Missing or Not Measured 
cum lnth struct branches 
analogous sums for length values for the different age classes see discussion for cumulative numbers, above. 
number 
millimeter 


na=Missing or Not Measured 
cum lnth total branches 
analogous sums for length values for the different age classes see discussion for cumulative numbers, above. 
number 
millimeter 


na=Missing or Not Measured 
cum wt ls (mg) 
analogous sums for weight values for the different age classes see discussion for cumulative numbers, above. 
number 
milligram 


na=Missing or Not Measured 
cum wt struct. branches 
analogous sums for weight values for the different age classes see discussion for cumulative numbers, above. 
number 
milligram 


na=Missing or Not Measured 
cum wt total 
analogous sums for weight values for the different age classes see discussion for cumulative numbers, above. 
number 
milligram 


na=Missing or Not Measured 
cum ss wt/cum total wt 
the fraction of the total cumulative weight that is short shoots, = 1  (cum wt struct/cum wt total) 
number 
milligram 


na=Missing or Not Measured 
total# dead branches 
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 
number 
number 


na=Missing or Not Measured 
total# dead branches/total stem biomass 
The number of dead branches divided by the cumulative total weight of stems (year 15 of cum wt total) 
number 
milligram 


na=Missing or Not Measured 
total # dead gp 
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) 
number 
number 


na=Missing or Not Measured 
total #dead gp/total wt 
Total number of dead growing points divided by the cumulative total weight in year 15 
number 
milligram 


na=Missing or Not Measured 
total dead struct 
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 
number 
number 


na=Missing or Not Measured 
total dead struct/total wt 
As above, the dead structural branches divided by year 15 of cum wt total 
number 
milligram 


na=Missing or Not Measured 
total live struct br. 
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. 
number 
number 


na=Missing or Not Measured 
total dead struct/(total live + dead struct) 
the number of attached dead long shoot branch points divided by the total live and dead branch points, a measure of mortality 
number 
number 


na=Missing or Not Measured 
Inflorescences total # 
The number, weight, and weight divided by number of inflorescences, either current year or next year's buds, depending on the replicate number 
number 
number 


na=Missing or Not Measured 
Inforescences total wt 
The number, weight, and weight divided by number of inflorescences, either current year or next year's buds, depending on the replicate number 
number 
milligram 


na=Missing or Not Measured 
Inforescences wt/inf. 
The number, weight, and weight divided by number of inflorescences, either current year or next year's buds, depending on the replicate number. 
number 
milligram 


na=Missing or Not Measured 
Dead: Age attached living 
the age of the living branch to which the dead was attached. This and the following variables on attached dead branches are summarized in the variables which precede them here are the original (entered) data) 
number 
number 


na=Missing or Not Measured 
Dead: Age dead 
the age at the base of the dead branch, if known (original entered data) 
number 
number 


na=Missing or Not Measured 
Dead: Lateral branch? (1) 
1 if the dead branch was a lateral, 0 if it was not (original entered data) 
text 



na=Missing or Not Measured 
Dead: total #gp 
total number of growing points (short and long shoots) on that dead branch (original entered data) 
number 
number 


na=Missing or Not Measured 
Dead: total # struct 
the total number of long shoot branch points in that attached dead branch (original entered data) 
number 
number 


na=Missing or Not Measured 
Dead: Years ago died: 
How long ago that attached branch system died, if known (original entered data) 
number 
number 


na=Missing or Not Measured 
Dead: Total wt dead 
total weight of all attached dead branches (original entered data) 
number 
milligram 


na=Missing or Not Measured 
Comments: 
Comments on individual data values 
text 



