Fine Roots vs. Needles: A Comparison of 13C and 15N Dynamics in a Ponderosa Pine Forest Soil

Plant allocation patterns may affect soil C and N storage due to differences in litter quality and the depth of plant C and N inputs into the soil. We studied the dynamics of dual-labeled (¹³C/¹⁵N) Pinus ponderosa needles and fine roots placed at two soil depths (O and A horizon) in a temperate coni...

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Veröffentlicht in:	Biogeochemistry 2006-07, Vol.79 (3), p.361-382
Hauptverfasser:	Bird, J.A, Torn, M.S
Format:	Artikel
Sprache:	eng
Schlagworte:	A horizons Agricultural soils Animal and plant ecology Animal, plant and microbial ecology biodegradation biological activity in soil Biological and medical sciences Carbon carbon dioxide conifer needles Coniferous forests Decay Decay rate Depth Dynamics Earth sciences Earth, ocean, space Efflux Exact sciences and technology fine roots forest litter Forest soils Fundamental and applied biological sciences. Psychology Horizon immobilization in soil Isotope geochemistry Isotope geochemistry. Geochronology Litter Microbial biomass Microorganisms mineralization nitrogen Nitrogen isotopes organic horizons Organic soils Pine needles Pine trees Pinus ponderosa Plant litter Plant roots Quality Residence time Respiration Roots Seasonal variations Soil Soil depth Soil dynamics Soil ecology Soil horizons Soil microorganisms soil respiration Soils stable isotopes Storage Surficial geology Synecology Terrestrial ecosystems
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