Velescu, A. (2017): <b>Monthly delta 13C and delta 15N isotope measurements in litterfall at NUMEX San Francisco between 2007-2009.</b> <i>Available online (http://www.tropicalmountainforest.org/data_pre.do?citid=1692) from DFG-FOR816dw.</i>
Resource Description
Title:
Monthly delta 13C and delta 15N isotope measurements in litterfall at NUMEX San Francisco between 2007-2009
Short Name:
NUMEX San Francisco 13C 15N isotopes in litterfall 2007-2009
FOR816dw ID:
1692
Publication Date:
2017-10-03
Last Update Date:
2017-10-04
License and Usage Rights:
PAK 823-825 data user agreement. (www.tropicalmountainforest.org/dataagreementp3.do)
Information not publicly available, please log in.
Max:
2130.0
(
meter
)
min longitude:
Information not publicly available, please log in.
max longitude:
Information not publicly available, please log in.
Elevation
min latitude:
Information not publicly available, please log in.
Min:
2025.0
(
meter
)
Dataset creator(s):
Individual:
Andre Velescu
Contact:
email:
andre.velescu <at> kit.edu
Karlsruher Institut für Technologie
Institut für Geographie und Geoökologie
Arbeitsgruppe Geomorphologie und Bodenkunde
Reinhard-Baumeister-Platz 1
76131 Karlsruhe
Germany
Associated Person(s):
Individual:
Hans Wullaert
Individual:
Katrin Bege
Abstract:
Monthly time series of d13C and d15N isotope measurements in litterfall at NUMEX San Francisco between 2007 and 2009. Litterfall was collected on all 20 plots at NUMEX on 6 subplots per plot (A-F) with polyethylene mesh traps (0.6 x 0.6 m). On each plot, two of the six litterfall traps were randomly sampled monthly. The samples were dried at 40 °C for one week and stored at the ECSF until transport to Germany or Switzerland for chemical analyses. The two collected replicates were bulked per plot and collecting interval resulting in one litterfall sample per plot and month. Samples were ground to <50 µm with a planetary ball mill (Retsch PM200, Haan, Germany) prior to isotope measurements of d13C and d15N by EA/IRMS (ThermoFisher, Bremen, Germany)
Keywords:
| NUMEX | litterfall | San Francisco | 15N natural abundance | 13C natural abundance |
Method
(Sampling/processing description of the values of
this attribute by one ore more steps.)
--- Step
1
---
Title
:
Date monthly (YYYY-MM-01)
Description
:
Date of a month (the day is not relevant and set by default to the 1st of the month). The format is YYYY-MM-01.
This format can be used to indicate that values have been aggergated (average, sum, mean, etc) over a month. More details of the aggregation method are annotated in method steps of the individual attribute or in the title or abstract of the dataset.
This format can also be used to indicate that only the month of an event is known. More infromation have to be added to the dataset description.
SampleID
--
ID of the sample
no unit
ID of the sample
Method
(Sampling/processing description of the values of
this attribute by one ore more steps.)
--- Step
1
---
Title
:
Unique sample ID
Description
:
Unique sample identification number
PlotID
--
ID of the plot
no unit
ID of the plot
Method
(Sampling/processing description of the values of
this attribute by one ore more steps.)
--- Step
1
---
Title
:
Plot ID in NUMEX
Description
:
Plot ID in NUMEX
PlotTreat
--
Treatment of the plot
no unit
Treatment of the plot with respect to experiments
Method
(Sampling/processing description of the values of
this attribute by one ore more steps.)
--- Step
1
---
Title
:
Treatment in NUMEX
Description
:
Treatment in NUMEX plots (control, N, P, NP, Ca)
Delta_13C
--
Delta 13C signature
Promille
Delta 13C signature
Method
(Sampling/processing description of the values of
this attribute by one ore more steps.)
--- Step
1
---
Title
:
Measurement of d13C isotopes
Description
:
Milling with planetary ball mill followed by elemental analysis by thermal combustion and continuous flow isotope ratio mass spectrometry.
Instrument:
Description: Elemental analysis followed by IRMS measurements calibrated against IAEA reference materials (d13C: VPDB, d15N: Air)
|
Instrument: EA-IRMS (Detla V Advantage)
|
Vendor: ThermoFisher
|
Metadata Provider:
Individual:
Andre Velescu
Contact:
email:
andre.velescu <at> kit.edu
Karlsruher Institut für Technologie
Institut für Geographie und Geoökologie
Arbeitsgruppe Geomorphologie und Bodenkunde
Reinhard-Baumeister-Platz 1
76131 Karlsruhe
Germany
Contact Person:
Individual:
Wolfgang Wilcke
Contact:
email:
wolfgang.wilcke <at> kit.edu
Karlsruhe Institute of Technology
Institute of Geography and Geoecology
Reinhard-Baumeister-Platz 1
76131 Karlsruhe
Baden-Württemberg
Germany
Individual:
Andre Velescu
Contact:
email:
andre.velescu <at> kit.edu
Karlsruher Institut für Technologie
Institut für Geographie und Geoökologie
Arbeitsgruppe Geomorphologie und Bodenkunde
Reinhard-Baumeister-Platz 1
76131 Karlsruhe
Germany
