[PDF] Top 20 Priming and substrate quality interactions in soil organic matter models

... 2011; Allison et al. 2010; Guenet et al. 2010; Blagodatskaya and Kuzyakov 2008; Fontaine et al. 2003, but see also older works of L¨ohnis 1926; Parnas 1975; Smith 1979; Panikov 1995; ˚ Agren and Bosatta 1996). Reasons ... See full document

... of models for sugars ...initial substrate quality hypoth- esis hold true for the decomposition of C input (Wickings et ...of substrate addition ...and substrate addi- tion treatments ... See full document

... Changes resulting from the publishing process, such as peer review, editing, correc- tions, structural formatting, and other quality control mechanisms may not be reflected in this docu-[r] ... See full document

... of soil organic matter (SOM) is important for our ability to develop man- agement practices that preserve soil quality and sequester ...decomposition models represent the ... See full document

... of soil microbial biomass itself is another factor that can affect the temperature ...the soil community was previously energy limited and the hypothesis that this energy limited commu- nity is responsible ... See full document

... excess soil-derived C by fungi in response to xylose alone was, however, negligible, suggesting that fungi were not asso- ciated with positive priming of SOM for N-acquisition in these ...forest ... See full document

... turnover models such as microbial biomass or the light ...different soil horizons and soil types remain scarce, so that validation of more mechanistic models based on functional SOM fractions ... See full document

... develop models to predict TOC and ...tion, models were validated by ensuring the predicted error sum of squares (PRESS) statistic was relatively close but greater than the sum of squared errors ... See full document

... as priming, and are very relevant for simulations at short time scales (Wutzler and Reichstein, 2008; Manzoni and Porpo- rato, 2007, ...Non-linear models however, can be eas- ily implemented in R with the ... See full document

... modelling soil organic carbon decomposition include the explicit incorporation of enzyme and microbial ...these models is a positive feedback between substrate and con- sumers, which is absent ... See full document

... litter quality and C saturation has significant potential to affect soil processes in man- aged and unmanaged ecosystems where the combina- tion of climate change and ecological disturbances could lead to ... See full document

... METHODS Soil samples. Soil samples were taken from the selected plots of the long-term field experiment in ...soil quality. Experiment is splited to four blocks differing in organic ... See full document

... and quality of non-humified part of soil organic matter ...of soil organic matter from the humus profile of Šumava forest soils and forest meadows, taxonomically ... See full document

... existing soil fractionation procedures, the density fractionation used in this study showed advantages over the chemical fractionation due to its low cost, noncontaminant dispersant and capability to show ... See full document

... the organic fractions: After the removal of lipids with chloroform/methanol (3/1, v/v) and fulvic and humic acids by alkaline extraction ...„refractory organic matter” (ROM) was demineralised using 6 ... See full document

... synthetic soil described in Chapter 3, the second objective for this work was to determine the impact different SOM constituents, specifically HA and PG, have on soil tertiary structure and how these ... See full document

... fresh organic residues as they decompose in ...of soil amendments and plant residues can be assessed by analyzing the amount of nitrogen, phosphorus and potassium (N-P-K) they ...recalcitrant soil ... See full document

... Coordinates MAT MAP Dominant plant species Soil Type Horizon Depth Horizon Depth Horizon Depth Tundra 67°16’N 78°50’E -8.2 455 Betula nana, Cladonia spp. Turbic Cryosol O 0-6 A 2-13 Bg, BCg 6-57 Northern taiga ... See full document

... ‘new’ soil samples were collected in June 2013 at the exactly same sites as the file ...present soil samples were analysed and evaluated in ...The soil organic matter was characterised ... See full document

... As soil microbial communities were kept warm, moist, and aerobic throughout the incubation experiment, microbial respiration was used to infer soil organic matter quality, because ... See full document