Citation:

bg-14-257-2017

Name: Eddy covariance and environmental data of boreal bogs plant species
Published: 2016-07-12
License: https://creativecommons.org/licenses/by/3.0/

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Published: 2016-07-12 • DOI registered: 2016-08-09

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Abstract:

In boreal bogs plant species are low in number, but they differ greatly in their growth forms and photosynthetic properties. We assessed how ecosystem carbon (C) sink dynamics were affected by seasonal variations in photosynthetic rate and leaf area of different species. Photosynthetic properties (light-response parameters), leaf area development and areal cover (abundance) of the species were used to quantify species-specific net and gross photosynthesis rates (PN and PG, respectively), which were summed to express ecosystem-level PN and PG. The ecosystem-level PG was compared with a gross primary production (GPP) estimate derived from eddy covariance measurements (EC).

Species areal cover rather than differences in photosynthetic properties determined the species with the highest PG of both vascular plants and Sphagna. Species-specific contributions to the ecosystem PG varied over the growing season, which in turn determined the seasonal variation in ecosystem PG. The upscaled growing-season PG estimate, 230 g C/m**2, agreed well with the GPP estimated by the EC, 243 g C/m**2.

Sphagna were superior to vascular plants in ecosystem-level PG throughout the growing season but had a lower PN. PN results indicated that areal cover of the species together with their differences in photosynthetic parameters shape the ecosystem-level C balance. Species with low areal cover but high photosynthetic efficiency appear to be potentially important for the ecosystem C sink. Results imply that functional diversity may increase the stability of C sink of boreal bogs.

Further details:

Photosynthetic light response data, units and explanations

Coverage:

Latitude: 61.830000 * Longitude: 24.200000

Date/Time Start: 2013-05-01T00:00:00 * Date/Time End: 2013-09-30T00:00:00

Event(s):

South_Finland * Latitude: 61.830000 * Longitude: 24.200000 * Location: Finland

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Day of the year	DOY	day	Korrensalo, Aino
2	DATE/TIME	Date/Time		Korrensalo, Aino	Geocode
3	Gross primary production of carbon dioxide	GTCO2	mg/m²/h	Korrensalo, Aino
4	Water table level	Water table level	cm	Korrensalo, Aino	from the surface
5	Leaf area index	LAI		Korrensalo, Aino	Andromeda polifolia
6	Leaf area index	LAI		Korrensalo, Aino	Betula nana
7	Leaf area index	LAI		Korrensalo, Aino	Calluna vulgaris
8	Leaf area index	LAI		Korrensalo, Aino	Carex limosa
9	Leaf area index	LAI		Korrensalo, Aino	Empetrum nigrum
10	Leaf area index	LAI		Korrensalo, Aino	Eriophorum vaginatum
11	Leaf area index	LAI		Korrensalo, Aino	Rubus chamaemorus
12	Leaf area index	LAI		Korrensalo, Aino	Rhynchospora alba
13	Leaf area index	LAI		Korrensalo, Aino	Scheuchzeria palustris
14	Leaf area index	LAI		Korrensalo, Aino	Trichophorum cespitosum
15	Leaf area index	LAI		Korrensalo, Aino	Vaccinium oxycoccos
16	Leaf area index	LAI		Korrensalo, Aino	Sum of vascular LAI

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

2253 data points

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