caa a22 4500 606218904 CHVBK 20210128101115.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s11104-014-2372-6 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2372-6 Short-range order mineral phases control the distribution of important macronutrients in coarse-textured forest soils of coastal British Columbia, Canada [Elektronische Daten] [Stephanie Grand, Les Lavkulich] Background and aims: Secondary minerals are known to provide sorption sites that contribute significantly to plant nutrient retention within the soil profile. The influence of mineral components on nutrient availability is however less certain in coarse-textured soils, where the abundance of clay minerals is low. The objective of this study is to identify important edaphic predictors of nutrient distribution in coarse-textured forest soils. Methods: We measured base cations, nitrogen and phosphorus forms in the organic, mineral top- and subsoil horizons of podzols of southwestern Canada and investigated their relation to soil properties using simple and canonical correlation analysis. Results: We found that soil organic carbon and reactive aluminum and iron species were stronger predictors of nutrient distribution than the silt and clay content. In particular, short-range order (SRO) Al and Fe mineral phases were strongly correlated with the distribution of potassium and phosphorus. Preferential association of K with SRO phases likely contributed to K retention in the profile. Phosphorus sorption to SRO phases decreased the amount of available P. Contrary to generally expected geochemical behaviour, labile P was negatively related to pH. We attributed this anomalous relation to an increase in the proportion of strongly sorptive SRO Al and Fe phases at higher pH. Conclusion: This study shows that understanding the sorptive properties of naturally-occurring SRO Al and Fe species is important to our ability to predict nutrient availability and points to the need for further investigation of the geochemical behaviour of SRO mineral phases under field conditions. Springer International Publishing Switzerland, 2015 Forest soils nationallicence Phosphate nationallicence Potassium nationallicence Short-range order minerals nationallicence Aluminum nationallicence pH nationallicence Grand Stephanie Soil Water Air Laboratory, University of British Columbia, 2357 Main Mall, V6T1Z4, Vancouver, BC, Canada aut Lavkulich Les Soil Water Air Laboratory, University of British Columbia, 2357 Main Mall, V6T1Z4, Vancouver, BC, Canada aut Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 77-93 0032-079X 390:1-2<77 2015 390 11104 https://doi.org/10.1007/s11104-014-2372-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2372-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Grand Stephanie Soil Water Air Laboratory, University of British Columbia, 2357 Main Mall, V6T1Z4, Vancouver, BC, Canada aut NATIONALLICENCE 700 1- Lavkulich Les Soil Water Air Laboratory, University of British Columbia, 2357 Main Mall, V6T1Z4, Vancouver, BC, Canada aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 77-93 0032-079X 390:1-2<77 2015 390 11104