Header

UZH-Logo

Maintenance Infos

Pyrogenic carbon quantity and quality unchanged after 55 years of organic matter depletion in a Chernozem


Vasilyeva, N A; Abiven, S; Milanovskiy, E Y; Hilf, M; Rizhkov, O V; Schmidt, M W I (2011). Pyrogenic carbon quantity and quality unchanged after 55 years of organic matter depletion in a Chernozem. Soil Biology and Biochemistry, 43(9):1985-1988.

Abstract

Chernozems typically have large stocks of organic carbon and of ␣re-derived, pyrogenic carbon (PyC). PyC had been considered to be slowly released but new results challenged this assumption, indicating that PyC can be lost within decades. We analyzed total soil organic carbon and PyC content (detectable as benzene polycarboxylic acids) in bulk samples, light and heavy fractions from a 55 year old bare fallow and a nearby steppe soil. Loss of PyC stock due to the long-term fallow management was much smaller (6%) than for soil organic carbon (33%), and we detected no changes in the degree of aromatic condensation of PyC. Most (70%) of the PyC was associated with the heavy fraction, and less with the light fraction (30%) pointing to organo-mineral interactions as important stabilizing processes.

Abstract

Chernozems typically have large stocks of organic carbon and of ␣re-derived, pyrogenic carbon (PyC). PyC had been considered to be slowly released but new results challenged this assumption, indicating that PyC can be lost within decades. We analyzed total soil organic carbon and PyC content (detectable as benzene polycarboxylic acids) in bulk samples, light and heavy fractions from a 55 year old bare fallow and a nearby steppe soil. Loss of PyC stock due to the long-term fallow management was much smaller (6%) than for soil organic carbon (33%), and we detected no changes in the degree of aromatic condensation of PyC. Most (70%) of the PyC was associated with the heavy fraction, and less with the light fraction (30%) pointing to organo-mineral interactions as important stabilizing processes.

Statistics

Citations

14 citations in Web of Science®
15 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

5 downloads since deposited on 25 Nov 2011
1 download since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Language:English
Date:2011
Deposited On:25 Nov 2011 09:52
Last Modified:05 Apr 2016 15:07
Publisher:Elsevier
ISSN:0038-0717
Publisher DOI:https://doi.org/10.1016/j.soilbio.2011.05.015

Download

Preview Icon on Download
Content: Published Version
Filetype: PDF - Registered users only
Size: 317kB
View at publisher

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.

Author Collaborations