uid=HFR,o=lter,dc=ecoinformatics,dc=org
all
public
read
doi:10.6073/pasta/fcb27856ff14a195848953732a8fd4d8
Nonstructural Carbohydrates in Red Maple at Harvard Forest and Bartlett Forest 2011-2012
Andrew
Richardson
https://orcid.org/0000-0002-0148-6714
Mariah
Carbone
https://orcid.org/0000-0002-7832-7009
2023
English
Nonstructural carbohydrates (NSC) are the primary products of photosynthesis, composed mostly of sugars and starch. Recent studies show that NSC pools in mature trees can be quite large and on average a decade old. Thus, NSC pools integrate years of carbon assimilation and represent significant ecological memory at the whole plant and ecosystem level. However, we know very little about how older stored NSC versus newly assimilated NSC are used to support growth and metabolism, or how available older NSC are to trees during stress or following disturbance. To better understand these potential lags in NSC allocation, we studied mature red maple (Acer rubrum) trees in two New England temperate forests. We determined stemwood concentrations of stored sugars and starch of five trees at each site. Applying the radiocarbon (14C) “bomb spike” approach, we estimated the age of carbon in stemwood NSC, ring cellulose, and bole respiration. We also collected stump sprouts regrowing from a separate set of recently harvested red maple trees at each site, and determined the radiocarbon age of this tissue. Our data show that younger NSC is preferentially used for growth and day-to-day metabolic demands. More recently stored NSC contributes to annual ring growth and metabolism in the dormant season. Older reserves are available to the tree after disturbance (e.g. harvesting).
carbohydrates
carbon
tree physiology
LTER controlled vocabulary
primary production
LTER core area
Harvard Forest
HFR
LTER
USA
HFR default
This dataset is released to the public under Creative Commons CC0 1.0 (No Rights Reserved). Please keep the dataset creators informed of any plans to use the dataset. Consultation with the original investigators is strongly encouraged. Publications and data products that make use of the dataset should include proper acknowledgement.
Creative Commons Zero v1.0 Universal
https://spdx.org/licenses/CC0-1.0.html
CC0-1.0
https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf225
Harvard Forest, Bartlett Experimental Forest. Coordinates based on WGS84 datum.
72.17
71.29
+44.06
+42.53
270
340
meter
2011
2012
genus
Acer
species
rubrum
red maple
complete
Information Manager
Harvard Forest
324 North Main Street
Petersham
MA
01366
USA
(978) 724-3302
hf-im@lists.fas.harvard.edu
Harvard Forest
324 North Main Street
Petersham
MA
01366
USA
(978) 724-3302
(978) 724-3595
https://harvardforest.fas.harvard.edu
Field methods and sampling protocol, as well as analytic methods, are described fully in the following publication: Carbone, M.S., C.I. Czimczik, T.F. Keenan, P.F. Murakami, N. Pederson, P.G. Schaberg, and A.D. Richardson, 2013, Age, allocation and availability of nonstructural carbon in mature red maple trees, New Phytologist 200: 1145-1155. 14C analyses were conducted at UC Irvine; NSC concentrations were determined at the USDA Forest Service lab in Burlington VT. The measurement precision (±1 SD) for all F14C is ≤ 0.0022 and for d13C values is ≤0.15‰.
Harvard Forest Long-Term Ecological Research
Harvard Forest
324 North Main Street
Petersham
MA
01366
USA
(978) 724-3302
(978) 724-3595
https://harvardforest.fas.harvard.edu
https://ror.org/059cpzx98
pointOfContact
The Harvard Forest Long-Term Ecological Research (LTER) program examines ecological dynamics in the New England region resulting from natural disturbances, environmental change, and human impacts.
National Science Foundation LTER grants: DEB-8811764, DEB-9411975, DEB-0080592, DEB-0620443, DEB-1237491, DEB-1832210.
hf225-01-mature-trees.csv
mature trees
hf225-01-mature-trees.csv
1474
90d67fe02c4b2eafaf2ffb291f3270ef
1
\r\n
column
,
https://harvardforest.fas.harvard.edu/data/p22/hf225/hf225-01-mature-trees.csv
sample.id
sample identification
sample identification
NA
missing value
dbh
diameter at breast height
centimeter
1
real
NA
missing value
height
height
meter
0.1
real
NA
missing value
age
tree stump age in years
number
1
real
NA
missing value
sucrose
nonstructural carbohydrate concentrations extracted from 2 cm stemwood
cores in late summer (mg g-1 dry wood)
dimensionless
0.01
real
NA
missing value
glucose
nonstructural carbohydrate concentrations extracted from 2 cm stemwood
cores in late summer (mg g-1 dry wood)
dimensionless
0.01
real
NA
missing value
fructose
nonstructural carbohydrate concentrations extracted from 2 cm stemwood
cores in late summer (mg g-1 dry wood)
dimensionless
0.01
real
NA
missing value
raffinose
nonstructural carbohydrate concentrations extracted from 2 cm stemwood
cores in late summer (mg g-1 dry wood)
dimensionless
0.01
real
NA
missing value
stachyose
nonstructural carbohydrate concentrations extracted from 2 cm stemwood
cores in late summer (mg g-1 dry wood)
dimensionless
0.01
real
NA
missing value
total.sugar
nonstructural carbohydrate concentrations extracted from 2 cm stemwood
cores in late summer (mg g-1 dry wood)
dimensionless
0.01
real
NA
missing value
starch
nonstructural carbohydrate concentrations extracted from 2 cm stemwood
cores in late summer (mg g-1 dry wood)
dimensionless
0.01
real
NA
missing value
total
nonstructural carbohydrate concentrations extracted from 2 cm stemwood
cores in late summer (mg g-1 dry wood)
dimensionless
0.01
real
NA
missing value
spring.stem.co2
spring CO2 flux rate
micromolePerMeterSquaredPerSecond
0.01
real
NA
missing value
summer.stem.co2
summer CO2 flux rate
micromolePerMeterSquaredPerSecond
0.01
real
NA
missing value
ring.celluose.f14c
the F14C (in Fraction Modern) of cellulose extracted from the innermost
(oldest) ring in the 2 cm stemwood core
dimensionless
0.0001
real
NA
missing
ring.celluose.d13c
the d13C (‰) of cellulose extracted from the innermost (oldest) ring in
the 2 cm stemwood core
dimensionless
0.1
real
NA
missing value
stem.sugar.f14c
the F14C (in Fraction Modern) of extracted stemwood
sugars
dimensionless
0.0001
real
NA
missing value
stem.sugar.d13c
the d13C (‰) of extracted stemwood sugars
dimensionless
0.1
real
NA
missing value
spring.stem.co2.f14c
the F14C (in Fraction Modern) of stem CO2 emitted in
spring
dimensionless
0.0001
real
NA
missing value
spring.stem.co2.d13c
the d13C (‰) of stem CO2 emitted in spring
dimensionless
0.1
real
NA
missing value
summer.stem.co2.f14c
the F14C (in Fraction Modern) of stem CO2 emitted in
summer
dimensionless
0.0001
real
NA
missing value
summer.stem.co2.d13c
the Fd13C (‰) of stem CO2 emitted in summer
dimensionless
0.1
real
NA
missing value
10
hf225-02-stump-sprouts.csv
stump sprouts
hf225-02-stump-sprouts.csv
541
8c9e27ddda0b5037198601b1bc4867bc
1
\r\n
column
,
https://harvardforest.fas.harvard.edu/data/p22/hf225/hf225-02-stump-sprouts.csv
site
site identification
site identification
NA
missing value
dbh
tree stump diameter at breast height
centimeter
0.1
real
NA
missing value
age
tree stump age in years
number
1
real
NA
missing value
sprout.f14c
sprout biomass F14C (in Fraction Modern)
dimensionless
0.0001
real
NA
missing value
sprout.d13c
sprout biomass d13C (‰)
dimensionless
0.1
real
NA
missing value
17
atmosphere
community
regional
short-term measurement
https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf176