Citation:

PANGAEA.945391

Name: Incubation of dissolved organic matter in a boreal ombrotrophic peatland
Published: 2022-06-14
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Boreal; Dissolved Organic Matter; Peatland; surface water

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Abstract:

Incubation of dissolved organic matter was performed in June, August and September 2019 and the difference in dissolved organic carbon and nitrogen concentrations and optical properties of dissolved organic matter were measured before and after incubations. In order to test effect of temperature, incubation were performed during 6 days in situ and under controlled conditions of temperature. Samples were incubated under filtered water so total organic carbon and filtered samples so dissolved organic carbon to test the effect of filtration and partial removing of microorganisms. Incubation were also performed under natural sunlight and under dark conditions to test the exfect of light on degradation. Absorbance indices (i.e. SUVA254, E2:E3 ratio and Sr) were measured with a absorbance spectrometry (Biochrom Ultrospec 3100 pro UV/Visible Spectrophotometer) for events from 18B1* to 18B5* and a Horiba Duetta for events from 19B1* to 19B4*. Fluorescence indices (i.e. Fluorescence Index and Beta:Alpha index) were measured with spectrofluorimetry using a Horiba Duetta (events from 19B1* to 19B4*).

Keyword(s):

Boreal; Dissolved Organic Matter; Peatland; surface water

Coverage:

Latitude: 50.524167 * Longitude: -63.206944

Date/Time Start: 2019-08-05T00:00:00 * Date/Time End: 2019-11-06T00:00:00

Event(s):

Romain_19B1 * Latitude: 50.524167 * Longitude: -63.206944 * Date/Time: 2019-11-06T00:00:00 * Location: Quebec, Canada * Method/Device: Sampling Well (WELL) * Comment: The peatland covers an area of 1.5 km2 at an average altitude of 108 m above sea level.

Romain_19B2 * Latitude: 50.524167 * Longitude: -63.206944 * Date/Time: 2019-08-05T00:00:00 * Location: Quebec, Canada * Method/Device: Sampling Well (WELL) * Comment: The peatland covers an area of 1.5 km2 at an average altitude of 108 m above sea level.

Romain_19B3 * Latitude: 50.524167 * Longitude: -63.206944 * Date/Time: 2019-09-06T00:00:00 * Location: Quebec, Canada * Method/Device: Sampling Well (WELL) * Comment: The peatland covers an area of 1.5 km2 at an average altitude of 108 m above sea level.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Prijac, Antonin
2	Identification	ID		Prijac, Antonin
3	Identification	ID		Prijac, Antonin		Short
4	Identification	ID		Prijac, Antonin		Condition
5	Replication	Repl		Prijac, Antonin
6	Campaign	Campaign		Prijac, Antonin
7	Date/time start	Date/time start		Prijac, Antonin		Incubation
8	Date/time end	Date/time end		Prijac, Antonin		Incubation
9	Environment	Environment		Prijac, Antonin
10	Condition	Cond		Prijac, Antonin
11	Condition	Cond		Prijac, Antonin
12	Condition	Cond		Prijac, Antonin
13	Carbon, organic, dissolved	DOC	mg/l	Prijac, Antonin		Initial
14	Nitrogen, organic, total	TON	mg/l	Prijac, Antonin		Initial
15	Assemblage	Assemblage	%	Prijac, Antonin		Initial
16	Specific ultraviolet absorbance normalized to DOC, 254 nm, per mass carbon	SUVA254	l/mg/m	Prijac, Antonin	Absorbance spectrometry	Initial
17	Absorption coefficient, colored dissolved organic matter 250 nm/365 nm, ratio	E2:E3		Prijac, Antonin	Absorbance spectrometry	Initial
18	Spectral slope of colored dissolved organic matter absorption ratio	SDOM ratio		Prijac, Antonin	Absorbance spectrometry	Initial
19	Fluorescence index	FI		Prijac, Antonin	Spectrofluorimetry	Initial
20	Carbon, organic, dissolved	DOC	mg/l	Prijac, Antonin		Fil
21	Nitrogen, organic, total	TON	mg/l	Prijac, Antonin		Fil
22	Carbon, organic, dissolved/Nitrogen, organic, dissolved ratio	DOC/DON		Prijac, Antonin		Fil
23	Carbon, degradation	C degradation	mg	Prijac, Antonin
24	Carbon, degradation rate	C degradation rate	mg/a	Prijac, Antonin
25	Carbon, degradation	C degradation	%	Prijac, Antonin
26	Carbon, degradation rate	C degradation rate	%/a	Prijac, Antonin
27	Nitrogen, degradation	N degradation	mg	Prijac, Antonin
28	Nitrogen, degradation rate	N degradation rate	mg/a	Prijac, Antonin
29	Nitrogen, degradation	N degradation	%	Prijac, Antonin
30	Nitrogen, degradation rate	N degradation rate	%/a	Prijac, Antonin
31	Specific ultraviolet absorbance normalized to DOC, 254 nm, per mass carbon	SUVA254	l/mg/m	Prijac, Antonin	Absorbance spectrometry	Fil
32	Absorption coefficient, colored dissolved organic matter 250 nm/365 nm, ratio	E2:E3		Prijac, Antonin	Absorbance spectrometry	Fil
33	Spectral slope of colored dissolved organic matter absorption ratio	SDOM ratio		Prijac, Antonin	Absorbance spectrometry	Fil
34	Fluorescence index	FI		Prijac, Antonin	Spectrofluorimetry	Fil
35	Assemblage	Assemblage	%	Prijac, Antonin		Delta
36	Specific ultraviolet absorbance normalized to DOC, 254 nm, per mass carbon	SUVA254	l/mg/m	Prijac, Antonin	Absorbance spectrometry	Delta
37	Absorption coefficient, colored dissolved organic matter 250 nm/365 nm, ratio	E2:E3		Prijac, Antonin	Absorbance spectrometry	Delta
38	Spectral slope of colored dissolved organic matter absorption ratio	SDOM ratio		Prijac, Antonin	Absorbance spectrometry	Delta
39	Fluorescence index	FI		Prijac, Antonin	Spectrofluorimetry	Delta

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

3444 data points

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