Phosphorus status of Eutric Cambisols polluted by P‐containing immissions:

Results of ³¹P NMR spectroscopy and chemical analysis

verfasst von

Mikhail I. Makarov, Georg Guggenberger, Helmut G. Alt, Wolfgang Zech

Abstract

The P status of an unpolluted Cambisol was compared with that of a polluted Cambisol receiving high P deposition that arise from a fertilizer factory near Novgorod, NW Russia. Experiments included P fractionation, P adsorption experiments and ³¹P NMR spectroscopy. In the O, A and AB horizons of the unpolluted soil organic P was the dominating fraction. Anthropogenic P accumulation was restricted to the O, A and AB horizons and amounted 692 kg ha⁻¹, representing the sum of P deposition within 20 years of factory operation. Most of the additional P was extractable inorganic P. Hence, P extractability increased from 54‐75 % in the unpolluted soil to 66‐83 % in the polluted soil. Ca‐phosphates were mainly accumulated in the forest floor, while Al‐ and Fe‐phosphates were concentrated in the A and AB horizons. Organic P showed only a slight increase due to P deposition. This increase was only due to accumulation of stable monoester‐P, while the stock of the more labile diester‐P and phosphonates in the polluted soil was only half of that in the unpolluted soil.

Externe Organisation(en)

Lomonosov Moscow State University
Universität Bayreuth

Typ

Artikel

Journal

Zeitschrift für Pflanzenernährung und Bodenkunde

Band

158

Seiten

293-298

Anzahl der Seiten

6

ISSN

0044-3263

Publikationsdatum

1995

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Bodenkunde

Ziele für nachhaltige Entwicklung

SDG 2 – Kein Hunger

Elektronische Version(en)

https://doi.org/10.1002/jpln.19951580313 (Zugang: Geschlossen)