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Record #195547:

Vegetation community, foliar nitrogen, and temperature effects on tundra CO₂ exchange across a soil moisture gradient / Jennifer Dagg, Peter Lafleur.

Title: Vegetation community, foliar nitrogen, and temperature effects on tundra CO₂ exchange across a soil moisture gradient / Jennifer Dagg, Peter Lafleur.
Author(s): Dagg, Jennifer.
Lafleur, Peter.
Date: 2011.
In: Arctic, Antarctic, and Alpine Research. (2011.), Vol. 43(2) (2011)
Abstract: Investigates CO₂ exchange in heterogeneous tundra landscape in Canadian Low Arctic with primary purpose of exploring relationship between moisture variability and community-level fluxes. Finds respiration and productivity to be highest in wet or mesic groups, with fewer differences in net CO₂ exchange. Across soil moisture gradient, productivity and net CO₂ exchange per leaf unit area and foliar nitrogen show significant negative linear trend. Respiration is limited in both very dry and saturated soil, and soil temperature effects on respiration are seen only in mesic moisture conditions.
Notes:

Arctic, Antarctic, and Alpine Research. Vol. 43(2) :189-197 (2011).

Keywords: 546.264-31 -- Carbon dioxide.
574.4 -- Ecology, terrestrial.
577.1 -- Biochemistry.
579 -- Microbiology and bacteriology.
58 -- Botany.
58.02 -- Plants, influence of environment.
581.524.444.2 -- Tundra.
631.43 -- Soils, physical and mechanical properties.
F -- Biological sciences.
(*3) -- Arctic regions.
(*41) -- Canada.
SPRI record no.: 195547

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245 10 ‡aVegetation community, foliar nitrogen, and temperature effects on tundra CO₂ exchange across a soil moisture gradient /‡cJennifer Dagg, Peter Lafleur.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2011.
300 ## ‡ap. 189-197 :‡bill., diags., tables.
500 ## ‡aArctic, Antarctic, and Alpine Research. Vol. 43(2) :189-197 (2011).
520 3# ‡aInvestigates CO₂ exchange in heterogeneous tundra landscape in Canadian Low Arctic with primary purpose of exploring relationship between moisture variability and community-level fluxes. Finds respiration and productivity to be highest in wet or mesic groups, with fewer differences in net CO₂ exchange. Across soil moisture gradient, productivity and net CO₂ exchange per leaf unit area and foliar nitrogen show significant negative linear trend. Respiration is limited in both very dry and saturated soil, and soil temperature effects on respiration are seen only in mesic moisture conditions.
530 ## ‡aAlso issued online ‡uurn:doi:10.1657/1938-4246-43.2.189‡uhttps://dx.doi.org/10.1657/1938-4246-43.2.189
650 07 ‡a546.264-31 -- Carbon dioxide.‡2udc
650 07 ‡a574.4 -- Ecology, terrestrial.‡2udc
650 07 ‡a577.1 -- Biochemistry.‡2udc
650 07 ‡a579 -- Microbiology and bacteriology.‡2udc
650 07 ‡a58 -- Botany.‡2udc
650 07 ‡a58.02 -- Plants, influence of environment.‡2udc
650 07 ‡a581.524.444.2 -- Tundra.‡2udc
650 07 ‡a631.43 -- Soils, physical and mechanical properties.‡2udc
650 07 ‡aF -- Biological sciences.‡2local
651 #7 ‡a(*3) -- Arctic regions.‡2udc
651 #7 ‡a(*41) -- Canada.‡2udc
700 1# ‡aLafleur, Peter.
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