Elevated CO 2 affects the content of glomalin related soil protein in xeric temperate loess and temperate semi-desert sand grasslands

D. Vodnik, I. Maèek, E. Péli, U. Videmšek, Z. Tuba

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Monoliths of temperate loess grassland and temperate semi-desert sand grassland have been exposed to elevated CO 2 (700 μmol mol-1) and present ambient CO 2 concentration in a 6-year open top chamber (OTC) experiment. In loess grassland elevated CO 2 increased both biomass and vegetation cover, whereas there was no similar effect found in semi-desert grassland. The content of glomalin related soil protein (GRSP) increased in both loess and sand grasslands under CO 2 enrichment (early summer aspect). The increase was higher in the case of easily extractable fraction (EEG), representing 14.7 and 22.2% of the chambered control's EEG, for loess and sand grassland respectively. In the case of total glomalin the increase was much lower 7.9% (loess) and 2.6% (sand). On the basis of differences between elevated and ambient CO 2 treatment we could conclude that elevated CO 2 promoted C-deposition in xeric temperate grassland in early summer. Increases of EEG indicate an efficient partitioning of the recently fixed carbon to the soil.

Original languageEnglish
Pages (from-to)161-166
Number of pages6
JournalCommunity Ecology
Volume9
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2008

Fingerprint

glomalin
loess
deserts
desert
grasslands
grassland
sand
protein
soil
proteins
open-top chamber
summer
vegetation cover
partitioning
carbon
biomass

Keywords

  • Carbon sequestration
  • Global change
  • Grassland
  • Mycorrhiza
  • Soil organic matter

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

Cite this

Elevated CO 2 affects the content of glomalin related soil protein in xeric temperate loess and temperate semi-desert sand grasslands. / Vodnik, D.; Maèek, I.; Péli, E.; Videmšek, U.; Tuba, Z.

In: Community Ecology, Vol. 9, No. SUPPL. 1, 2008, p. 161-166.

Research output: Contribution to journalArticle

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