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RF_2002_Soil
Soil Respirations from experiemental plots near Toolik Lake, AK for 2002
Loretta
Johnson
US
Knute
Nadelhoffer
830 N. University, Department of Ecology and Evolutionary Biology
Ann Arbor
MI
48019-1048
US
George
Kling
University of Michigan
University of Michigan,Department of Ecology and Evolutionary Biology, 830 North University
Ann Arbor
MI
48109-1048
US
734 647 0894
gwk@umich.edu
https://lsa.umich.edu/eeb/people/faculty/gwk.html
https://orcid.org/0000-0002-6349-8227
Martin
Sommerkorn
US
associated researcher
Edward
Rastetter
7 M B L St.
Woods Hole
MA
02543
US
erastetter@mbl.edu
https://www.mbl.edu/ecosystems/rastetter/
https://orcid.org/0000-0002-8620-5431
associated researcher
Kate
O'Brien
US
associated researcher
Suzanne
Randazzo
US
associated researcher
Kristi
Judd
US
associated researcher
2004
English
Soil respiration of carbon dioxide, and methane in waters from wet sedge plots near Toolik Lake, AK during the summer of 2002.
soil respiration
methane
carbon dioxide
LTER Controlled Vocabulary
arctic soils
moist acidic tundra
wet sedge tundra
Arctic LTER Vocabulary
Data Policies
This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.
Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User should properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set.
Acknowledgement. The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers.
For example: Data sets were provided by the Arctic LTER. This material is based upon work supported by the National Science Foundation under Award numbers #1637459,1026843, 9810222, 9211775, 8702328.
https://arc-lter.ecosystems.mbl.edu/rf2002soil
LTER Moist Acidic Tussock Tundra: Arctic LTER Experimental Plots: Moist Acidic Tussock Tundra (MAT) Northeast corner block 1 near Toolik Field Station, North Slope, Alaska.
-149.610000610352
-149.610000610352
68.624397277832
68.624397277832
750
750
meter
LTER Wet Sedge Tundra Block 2: Arctic LTER Experimental Plots: Wet Sedge Tundra Block 2 Northeast corner near Toolik Field Station, North Slope, Alaska.
-149.576995849609
-149.576995849609
68.647598266602
68.647598266602
719
719
meter
2002-06-05
2002-08-22
Entered metadata into new metadata form.
Version 2: Checked keywords against the LTER network preferred list and replaced non-preferred terms. Jim L 27Jan14
Arctic_LTER
Information Manager
Arctic Long Term Ecological Research
7 M B L St
Woods Hole
MA
02536
US
(508) 548-3705
arc_im@mbl.edu
Arctic Long Term Ecological Research
Plot location was chosen based on dominate vegetation type (T or W). The tussock tundra plots are located near the Moist Acidic Tundra plots characterized by Shaver and Chapin (1991). The wet sedge plots are located near the outlet of Toolik Lake; all plots have been used by the Arctic LTER project at Toolik Lake.
In wet sedge tundra, three 1 m2-sized plots were positioned randomly in each of two treatments of block 2 of the LTER wet sedge scheme (outlet site), control and N+P-fertilized , respectively, in 2000. Paired control and fertilized plots were labelled with 14C and 15N at one of three different dates of the summer season 2001.
In moist acidic tussock tundra six 1 m2 sized plots were positioned in three of the "X" (=extra") blocks of the LTER scheme, in 2001, inside an area extending 5 m from the boardwalks and, positioning plots so that similar area shares between tussocks and intertussock areas was achieved. In each of the three X blocks two 1m2-sized plots were established. The whole 5 m area of the X blocks extending from the board walks was divided into two halfs, each containing one of the 1m2 sized plots. One half was set aside as the control and the other half was designated to be fertilized. Fertilization with a Hoagland solution (see protocol) started in late summer 2001, and was repeated annually after that , early in the summer season. Paired control and fertilized plots were labelled with 14C and 15N of the summer season 2002; all three pairs were labelled as closely together in time as logistically possible.
In each plot we installed two soil collars. On collection days we would place the collar cap on the collar, and wait 40 minutes to build up CO2 concentration in the headspace. We extracted 120 mL gas sample using a plastic 140 ml syringe with 6inch needle through collar septum. We transferred ~10 ml gas from original syringe into 20 ML nylon syringe to run on a Shimadzu Model 14A gas chromatograph with a flame ionization detector (FID) for CO2 and CH4 content.
Shaver, G.R., and F.S. Chapin. 1991. Production - biomass relationships and elemental cycling in contrasting arctic vegetation types. Ecological Monographs 61(1): 1-31.
RF_2002_Soil_csv
Soil Respirations from experiemental plots near Toolik Lake, AK for 2002
RF_2002_Soil.csv
17990
8a97d396a3099639fafd404f8595fa68
66d4618344f5b9b0de3ae3ae9d0f688f4098e186
1
0
\r\n
column
,
"
https://arc-lter.ecosystems.mbl.edu/sites/default/files/data/root_dynamics/RF_2002_Soil.csv
Vegetation
Vegetation
Vegetation Type: t = tussock tundra | w = wet sedge
string
Vegetation Type: t = tussock tundra | w = wet sedge
Treatment
Treatment
Treatment Type: c = control | f = fertilized
string
Treatment Type: c = control | f = fertilized
Plot#
Plot#
Plot Number: 1 = plot 1 | 2 = plot 2 | 3 = plot 3
string
Plot Number: 1 = plot 1 | 2 = plot 2 | 3 = plot 3
Soil Collar
Soil Collar
Soil Collar Identification: a = Soil Collar A | b = Soil Collar B
string
Soil Collar Identification: a = Soil Collar A | b = Soil Collar B
Replicate
Replicate
Replicate Identification: r1 = 1st replicate | r2 = 2nd replicate | r3 = 3rd replicate | r4 = 4th replicate | r5 = 5th replicate | r6 = 6th replicate
string
Replicate Identification: r1 = 1st replicate | r2 = 2nd replicate | r3 = 3rd replicate | r4 = 4th replicate | r5 = 5th replicate | r6 = 6th replicate
Date
Date
Date sampled
date
dd-mmm-yy
.
Missing or Not Measured
Time
Time
Time sampled
date
hh:mm
.
Missing or Not Measured
Category
Category
Type of sample: sr = Soil Respiration
string
Type of sample: sr = Soil Respiration
Elev_m
Elev_m
Elevation of the sample site
meter
real
.
Missing or Not Measured
Depth_m
Depth_m
Depth of the sample site
meter
real
.
Missing or Not Measured
PCO2_uatm
PCO2_uatm
Partial Pressure of Carbon Dioxide
microatmosphere
real
.
Missing or Not Measured
PCH4_uatm
PCH4_uatm
Partial Pressure of Methane
microatmosphere
real
.
Missing or Not Measured
CO2_umol_L
CO2_umol_L
Concentration of Carbon Dioxide
micromolePerLiter
real
.
Missing or Not Measured
CH4_umol_L
CH4_umol_L
Concentration of Methane
micromolePerLiter
real
.
Missing or Not Measured
312
RF_2002_Soil_excel
Excel file with metadata and data sheets. Soil Respirations from experiemental plots near Toolik Lake, AK for 2002
RF_2002_Soil.xls
453120
c5472ac1db2748c946156e4823d74c6a
5a04018353ebd931f3ab142dd5081c10ebc58e90
application/vnd.ms-excel
https://arc-lter.ecosystems.mbl.edu/sites/default/files/data/root_dynamics/RF_2002_Soil.xls
document
1 microAtmosphere = 0.000001 atmospheres = 1013.25 millibars = 0.101325 Pascals = 0.0000147 lb/sq.in
micromoles per liter of solution