Soil organic phosphorus transformations in a boreal forest chronosequence. Vincent, A. G., Vestergren, J., Grobner, G., Persson, P., Schleucher, J., & Giesler, R. Plant and Soil, 367(1-2):149–162, June, 2013. 00020
doi  abstract   bibtex   
Soil phosphorus (P) composition changes with ecosystem development, leading to changes in P bioavailability and ecosystem properties. Little is known, however, about how soil P transformations proceed with ecosystem development in boreal regions. We used 1-dimensional P-31 and 2-dimensional H-1, P-31 correlation nuclear magnetic resonance (NMR) spectroscopy to characterise soil organic P transformations in humus horizons across a 7,800 year-old chronosequence in Vasterbotten, northern Sweden. Total soil P concentration varied little along the chronosequence, but P compounds followed three trends. Firstly, the concentrations of DNA, 2-aminoethyl phosphonic acid, and polyphosphate, increased up to 1,200-2,700 years and then declined. Secondly, the abundances of alpha- and beta-glycerophosphate, nucleotides, and pyrophosphate, were higher at the youngest site compared with all other sites. Lastly, concentrations of inositol hexakisphosphate fluctuated with site age. The largest changes in soil P composition tended to occur in young sites which also experience the largest shifts in plant community composition. The apparent lack of change in total soil P is consistent with the youth and nitrogen limited nature of the Vasterbotten chronosequence. Based on 2D NMR spectra, around 40 % of extractable soil organic P appeared to occur in live microbial cells. The observed trends in soil organic P may be related to shifts in plant community composition (and associated changes in soil microorganisms) along the studied chronosequence, but further studies are needed to confirm this.
@article{vincent_soil_2013,
	title = {Soil organic phosphorus transformations in a boreal forest chronosequence},
	volume = {367},
	issn = {0032-079X},
	doi = {10.1007/s11104-013-1731-z},
	abstract = {Soil phosphorus (P) composition changes with ecosystem development, leading to changes in P bioavailability and ecosystem properties. Little is known, however, about how soil P transformations proceed with ecosystem development in boreal regions. We used 1-dimensional P-31 and 2-dimensional H-1, P-31 correlation nuclear magnetic resonance (NMR) spectroscopy to characterise soil organic P transformations in humus horizons across a 7,800 year-old chronosequence in Vasterbotten, northern Sweden. Total soil P concentration varied little along the chronosequence, but P compounds followed three trends. Firstly, the concentrations of DNA, 2-aminoethyl phosphonic acid, and polyphosphate, increased up to 1,200-2,700 years and then declined. Secondly, the abundances of alpha- and beta-glycerophosphate, nucleotides, and pyrophosphate, were higher at the youngest site compared with all other sites. Lastly, concentrations of inositol hexakisphosphate fluctuated with site age. The largest changes in soil P composition tended to occur in young sites which also experience the largest shifts in plant community composition. The apparent lack of change in total soil P is consistent with the youth and nitrogen limited nature of the Vasterbotten chronosequence. Based on 2D NMR spectra, around 40 \% of extractable soil organic P appeared to occur in live microbial cells. The observed trends in soil organic P may be related to shifts in plant community composition (and associated changes in soil microorganisms) along the studied chronosequence, but further studies are needed to confirm this.},
	language = {English},
	number = {1-2},
	journal = {Plant and Soil},
	author = {Vincent, Andrea G. and Vestergren, Johan and Grobner, Gerhard and Persson, Per and Schleucher, Jurgen and Giesler, Reiner},
	month = jun,
	year = {2013},
	note = {00020},
	keywords = {\#nosource, 1d (pnmr)-p-31, 2D H-1, P-31 correlation NMR, Inositol   hexakisphosphate, Podzolization, Ribonucleic acid (RNA), Vasterbotten chronosequence, community structure, humus layer, iron accumulation, land-uplift coast, northern sweden, nuclear-magnetic-resonance, p-31   nmr-spectroscopy, primary succession transect, ribosomal-rna, western finland},
	pages = {149--162},
}

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