Characterization of phosphorus fractions in mountain soils of the Bavarian Alps by  31 P NMR spectroscopy | Zendy

Zech Wolfgang | Zendy; Alt Helmut G. | Zendy; Haumaier Ludwig | Zendy; Blasek Roland | Zendy

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Characterization of phosphorus fractions in mountain soils of the Bavarian Alps by 31 P NMR spectroscopy

Author(s) -

Zech Wolfgang,

Alt Helmut G.,

Haumaier Ludwig,

Blasek Roland

Publication year - 1987

Publication title -

zeitschrift für pflanzenernährung und bodenkunde

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.644

H-Index - 87

eISSN - 1522-2624

pISSN - 0044-3263

DOI - 10.1002/jpln.19871500212

Subject(s) - pyrophosphate , soil water , chemistry , phosphorus , phosphate , nuclear magnetic resonance spectroscopy , soil test , nuclear chemistry , environmental chemistry , geology , stereochemistry , soil science , organic chemistry , enzyme

NaOH‐extracts from different soils of the alpine and shrub zones at the Schneibstein (Nationalpark Berchtesgaden) between 1790–2275 m were studied using 31 P NMR spectroscopy. NaOH (0.5 M) dissolved 29–49% of P t . Orthophosphate monoesters were the dominant fraction (41–79%). Orthophosphate diesters comprised 10–20%. A higher diester content (36%) was found in a hydromorphic soil. Inorganic phosphate comprised 5–27%, depending on soil pH. So, in acid horizons (pH 4.45 and 5.05) 27 and 23% were detected, whereas in horizons with higher pH (> 6) only small amounts (5–8%) were found. Pyrophosphate and polyphosphates were found in traces. Phosphonates (ca. 6%) occurred mainly in acid soils.

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