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Record #161574:

The influence of abiotic factors on biological nitrogen fixation in different types of vegetation in the High Arctic, Svalbard / Matthias Zielke, Anne Stine Ekker, Rolf A. Olsen, Sigmund Spjelkavik, Björn Solheim.

Title: The influence of abiotic factors on biological nitrogen fixation in different types of vegetation in the High Arctic, Svalbard / Matthias Zielke, Anne Stine Ekker, Rolf A. Olsen, Sigmund Spjelkavik, Björn Solheim.
Author(s): Zielke, Matthias.
Ekker, Anne Stine.
Olsen, Rolf A.
Spjelkavik, Sigmund.
Solheim, Björn.
Date: 2002.
In: Arctic, Antarctic, and Alpine Research. (2002.), Vol. 34(3) (2002)
Abstract: Soil and vegetation samples from different types of plant community from Sassen Valley were measured in summers of 1997 and 2000. Influence of temperature, water content and light intensity on acetylene reduction rates was studied. Rate was low and almost constant up to 10 deg.C, but increased rapidly above that, with maximum at c. 25 and 32 deg.C for samples with free-living cyanobacteria and moss-associated cyanobacteria respectively. All types of vagetation depended on water and light for reduction.
Notes:

Arctic, Antarctic, and Alpine Research. Vol. 34(3) :293-299 (2002).

Keywords: 581.1 -- Plant physiology.
581.133.1 -- Nitrogen assimilation.
G -- Botany.
(*3) -- Arctic regions.
(*32) -- Svalbard.
SPRI record no.: 161574

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245 04 ‡aThe influence of abiotic factors on biological nitrogen fixation in different types of vegetation in the High Arctic, Svalbard /‡cMatthias Zielke, Anne Stine Ekker, Rolf A. Olsen, Sigmund Spjelkavik, Björn Solheim.
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300 ## ‡ap. 293-299 :‡bdiags., tables, map.
500 ## ‡aArctic, Antarctic, and Alpine Research. Vol. 34(3) :293-299 (2002).
520 3# ‡aSoil and vegetation samples from different types of plant community from Sassen Valley were measured in summers of 1997 and 2000. Influence of temperature, water content and light intensity on acetylene reduction rates was studied. Rate was low and almost constant up to 10 deg.C, but increased rapidly above that, with maximum at c. 25 and 32 deg.C for samples with free-living cyanobacteria and moss-associated cyanobacteria respectively. All types of vagetation depended on water and light for reduction.
650 07 ‡a581.1 -- Plant physiology.‡2udc
650 07 ‡a581.133.1 -- Nitrogen assimilation.‡2udc
650 07 ‡aG -- Botany.‡2local
651 #7 ‡a(*3) -- Arctic regions.‡2udc
651 #7 ‡a(*32) -- Svalbard.‡2udc
700 1# ‡aZielke, Matthias.
700 1# ‡aEkker, Anne Stine.
700 1# ‡aOlsen, Rolf A.
700 1# ‡aSpjelkavik, Sigmund.
700 1# ‡aSolheim, Björn.
773 0# ‡7nnas ‡tArctic, Antarctic, and Alpine Research. ‡gVol. 34(3) (2002) ‡wSPRI-211524
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