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Aggregate hierarchy and chemical exchange reactions; Aggregathierarchien und chemische Austauschvorgaenge

Abstract

Recent publications show that macroaggregates (> 250 {mu}m) may consist of microaggregates (20-250 {mu}m) in soils, which contain organic colloids. Roots and hyphae have a potential role in the formation of macroaggregates. Fragments of roots and hyphae may serve as nuclei for smaller aggregates. This implicates that aggregate factions contain organic material of different characteristics. Especially humus in microaggregates may play a keyrole for the mobility of elements in the soil. E.g. radiocaesium extractability in the silt fraction of a Calcic Chemozem and soil-to-plant transfer was distinctly enhanced due to seven times higher C{sub org}-contents as compared to an Eutric Cambisol.
Authors:
Publication Date:
Jan 01, 1994
Product Type:
Technical Report
Report Number:
OEFZS-4705
Reference Number:
SCA: 540230; 553002; PA: AIX-25:025070; EDB-94:057113; NTS-94:016657; SN: 94001174437
Resource Relation:
Other Information: PBD: Jan 1994
Subject:
54 ENVIRONMENTAL SCIENCES; 60 APPLIED LIFE SCIENCES; CESIUM 137; RADIONUCLIDE MIGRATION; AGGLOMERATION; FLOCCULATION; ORGANIC MATTER; PARTICLE MOBILITY; ROOT ABSORPTION; ROOTS; SILT; SOILS; 540230; 553002; RADIOACTIVE MATERIALS MONITORING AND TRANSPORT; HORTICULTURE
OSTI ID:
10138355
Research Organizations:
Oesterreichisches Forschungszentrum Seibersdorf GmbH (Austria)
Country of Origin:
Austria
Language:
German
Other Identifying Numbers:
Journal ID: ISSN 0253-5270; Other: ON: DE94619137; TRN: AT9400037025070
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
16 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Gerzabek, M H. Aggregate hierarchy and chemical exchange reactions; Aggregathierarchien und chemische Austauschvorgaenge. Austria: N. p., 1994. Web.
Gerzabek, M H. Aggregate hierarchy and chemical exchange reactions; Aggregathierarchien und chemische Austauschvorgaenge. Austria.
Gerzabek, M H. 1994. "Aggregate hierarchy and chemical exchange reactions; Aggregathierarchien und chemische Austauschvorgaenge." Austria.
@misc{etde_10138355,
title = {Aggregate hierarchy and chemical exchange reactions; Aggregathierarchien und chemische Austauschvorgaenge}
author = {Gerzabek, M H}
abstractNote = {Recent publications show that macroaggregates (> 250 {mu}m) may consist of microaggregates (20-250 {mu}m) in soils, which contain organic colloids. Roots and hyphae have a potential role in the formation of macroaggregates. Fragments of roots and hyphae may serve as nuclei for smaller aggregates. This implicates that aggregate factions contain organic material of different characteristics. Especially humus in microaggregates may play a keyrole for the mobility of elements in the soil. E.g. radiocaesium extractability in the silt fraction of a Calcic Chemozem and soil-to-plant transfer was distinctly enhanced due to seven times higher C{sub org}-contents as compared to an Eutric Cambisol.}
place = {Austria}
year = {1994}
month = {Jan}
}