Dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of Russia
Abstract Background Until recently, a lot of arable lands were abandoned in many countries of the world and, especially, in Russia, where about half a million square kilometers of arable lands were abandoned in 1961-2007. The soils at these fallows undergo a process of natural restoration (or self-r...
Main Authors: | , , , , |
---|---|
Format: | Other/Unknown Material |
Language: | English |
Published: |
BioMed Central Ltd.
2010
|
Subjects: | |
Online Access: | http://www.cbmjournal.com/content/5/1/1 |
id |
ftbiomed:oai:biomedcentral.com:1750-0680-5-1 |
---|---|
record_format |
openpolar |
spelling |
ftbiomed:oai:biomedcentral.com:1750-0680-5-1 2023-05-15T18:30:23+02:00 Dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of Russia Kalinina, Olga Goryachkin, Sergey V Karavaeva, Nina A Lyuri, Dmitriy I Giani, Luise 2010-04-26 http://www.cbmjournal.com/content/5/1/1 en eng BioMed Central Ltd. http://www.cbmjournal.com/content/5/1/1 Copyright 2010 Kalinina et al; licensee BioMed Central Ltd. Research 2010 ftbiomed 2010-05-29T23:30:31Z Abstract Background Until recently, a lot of arable lands were abandoned in many countries of the world and, especially, in Russia, where about half a million square kilometers of arable lands were abandoned in 1961-2007. The soils at these fallows undergo a process of natural restoration (or self-restoration) that changes the balance of soil organic matter (SOM) supply and mineralization. Results A soil chronosequence study, covering the ecosystems of 3, 20, 55, 100, and 170 years of self-restoration in southern taiga zone, shows that soil organic content of mineral horizons remains relatively stable during the self-restoration. This does not imply, however, that SOM pools remain steady. The C/N ratio of active SOM reached steady state after 55 years, and increased doubly (from 12.5 - 15.6 to 32.2-33.8). As to the C/N ratio of passive SOM, it has been continuously increasing (from 11.8-12.7 to 19.0-22.8) over the 170 years, and did not reach a steady condition. Conclusion The results of the study imply that soil recovery at the abandoned arable sandy lands of taiga is incredibly slow process. Not only soil morphological features of a former ploughing remained detectable but also the balance of soil organic matter input and mineralization remained unsteady after 170 years of self-restoration. Other/Unknown Material taiga BioMed Central |
institution |
Open Polar |
collection |
BioMed Central |
op_collection_id |
ftbiomed |
language |
English |
description |
Abstract Background Until recently, a lot of arable lands were abandoned in many countries of the world and, especially, in Russia, where about half a million square kilometers of arable lands were abandoned in 1961-2007. The soils at these fallows undergo a process of natural restoration (or self-restoration) that changes the balance of soil organic matter (SOM) supply and mineralization. Results A soil chronosequence study, covering the ecosystems of 3, 20, 55, 100, and 170 years of self-restoration in southern taiga zone, shows that soil organic content of mineral horizons remains relatively stable during the self-restoration. This does not imply, however, that SOM pools remain steady. The C/N ratio of active SOM reached steady state after 55 years, and increased doubly (from 12.5 - 15.6 to 32.2-33.8). As to the C/N ratio of passive SOM, it has been continuously increasing (from 11.8-12.7 to 19.0-22.8) over the 170 years, and did not reach a steady condition. Conclusion The results of the study imply that soil recovery at the abandoned arable sandy lands of taiga is incredibly slow process. Not only soil morphological features of a former ploughing remained detectable but also the balance of soil organic matter input and mineralization remained unsteady after 170 years of self-restoration. |
format |
Other/Unknown Material |
author |
Kalinina, Olga Goryachkin, Sergey V Karavaeva, Nina A Lyuri, Dmitriy I Giani, Luise |
spellingShingle |
Kalinina, Olga Goryachkin, Sergey V Karavaeva, Nina A Lyuri, Dmitriy I Giani, Luise Dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of Russia |
author_facet |
Kalinina, Olga Goryachkin, Sergey V Karavaeva, Nina A Lyuri, Dmitriy I Giani, Luise |
author_sort |
Kalinina, Olga |
title |
Dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of Russia |
title_short |
Dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of Russia |
title_full |
Dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of Russia |
title_fullStr |
Dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of Russia |
title_full_unstemmed |
Dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of Russia |
title_sort |
dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of russia |
publisher |
BioMed Central Ltd. |
publishDate |
2010 |
url |
http://www.cbmjournal.com/content/5/1/1 |
genre |
taiga |
genre_facet |
taiga |
op_relation |
http://www.cbmjournal.com/content/5/1/1 |
op_rights |
Copyright 2010 Kalinina et al; licensee BioMed Central Ltd. |
_version_ |
1766213881146900480 |