Microbial characteristic of soils on a latitudinal transect in Siberia
(2003) In Global Change Biology 9(7). p.1106-1117- Abstract
- Soil microbial properties were studied from localities on a transect along the Yenisei River, Central Siberia. The 1000 km-long transect, from 56°N to 68°N, passed through tundra, taiga and pine forest characteristic of Northern Russia. Soil microbial properties were characterized by dehydrogenase activity, microbial biomass, composition of microbial community (PLFAs), respiration rates, denitrification and N mineralization rates. Relationships between vegetation, latitude, soil quality (pH, texture), soil organic carbon (SOC) and the microbial properties were examined using multivariate analysis. In addition, the temperature responses of microbial growth (net growth rate) and activity (soil respiration rate) were tested by laboratory... (More)
- Soil microbial properties were studied from localities on a transect along the Yenisei River, Central Siberia. The 1000 km-long transect, from 56°N to 68°N, passed through tundra, taiga and pine forest characteristic of Northern Russia. Soil microbial properties were characterized by dehydrogenase activity, microbial biomass, composition of microbial community (PLFAs), respiration rates, denitrification and N mineralization rates. Relationships between vegetation, latitude, soil quality (pH, texture), soil organic carbon (SOC) and the microbial properties were examined using multivariate analysis. In addition, the temperature responses of microbial growth (net growth rate) and activity (soil respiration rate) were tested by laboratory experiments. The major conclusions of the study are as follows:
1. Multivariate analysis of the data revealed significant differences in microbial activity. SOC clay content was positively related to clay content. Soil texture and SOC exhibited the dominant effect on soil microbial parameters, while the vegetation and climatic effects (expressed as a function of latitude) were weaker but still significant. The effect of vegetation cover is linked to SOC quality, which can control soil microbial activity.
2. When compared to fine-textured soils, coarse-textured soils have (i) proportionally more SOC bound in microbial biomass, which might result in higher susceptibility of SOC transformation to fluctuation of environmental factors, and (ii) low mineralization potential, but with a substantial part of the consumed C being transformed to microbial products.
3. The soil microbial community from the northernmost study region located within the permafrost zone appears to be adapted to cold conditions. As a result, microbial net growth rate became negative when temperature rose above 5 °C and C mineralization then exceeded C accumulation. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/590306
- author
- Santruckova, H ; Bird, MI ; Kalashnikov, YN ; Grund, M ; Simek, M ; Grigoriev, S ; Gleixner, G ; Arneth, Almut LU and Schulze, ED
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Global Change Biology
- volume
- 9
- issue
- 7
- pages
- 1106 - 1117
- publisher
- Wiley-Blackwell
- external identifiers
-
- scopus:0043133527
- ISSN
- 1354-1013
- DOI
- 10.1046/j.1365-2486.2003.00596.x
- language
- English
- LU publication?
- no
- id
- 757e52d7-052d-44f2-a8be-76702c10ac0c (old id 590306)
- date added to LUP
- 2016-04-01 12:23:20
- date last changed
- 2022-01-27 03:05:20
@article{757e52d7-052d-44f2-a8be-76702c10ac0c,
abstract = {{Soil microbial properties were studied from localities on a transect along the Yenisei River, Central Siberia. The 1000 km-long transect, from 56°N to 68°N, passed through tundra, taiga and pine forest characteristic of Northern Russia. Soil microbial properties were characterized by dehydrogenase activity, microbial biomass, composition of microbial community (PLFAs), respiration rates, denitrification and N mineralization rates. Relationships between vegetation, latitude, soil quality (pH, texture), soil organic carbon (SOC) and the microbial properties were examined using multivariate analysis. In addition, the temperature responses of microbial growth (net growth rate) and activity (soil respiration rate) were tested by laboratory experiments. The major conclusions of the study are as follows:<br/><br>
<br/><br>
1. Multivariate analysis of the data revealed significant differences in microbial activity. SOC clay content was positively related to clay content. Soil texture and SOC exhibited the dominant effect on soil microbial parameters, while the vegetation and climatic effects (expressed as a function of latitude) were weaker but still significant. The effect of vegetation cover is linked to SOC quality, which can control soil microbial activity.<br/><br>
<br/><br>
2. When compared to fine-textured soils, coarse-textured soils have (i) proportionally more SOC bound in microbial biomass, which might result in higher susceptibility of SOC transformation to fluctuation of environmental factors, and (ii) low mineralization potential, but with a substantial part of the consumed C being transformed to microbial products.<br/><br>
<br/><br>
3. The soil microbial community from the northernmost study region located within the permafrost zone appears to be adapted to cold conditions. As a result, microbial net growth rate became negative when temperature rose above 5 °C and C mineralization then exceeded C accumulation.}},
author = {{Santruckova, H and Bird, MI and Kalashnikov, YN and Grund, M and Simek, M and Grigoriev, S and Gleixner, G and Arneth, Almut and Schulze, ED}},
issn = {{1354-1013}},
language = {{eng}},
number = {{7}},
pages = {{1106--1117}},
publisher = {{Wiley-Blackwell}},
series = {{Global Change Biology}},
title = {{Microbial characteristic of soils on a latitudinal transect in Siberia}},
url = {{http://dx.doi.org/10.1046/j.1365-2486.2003.00596.x}},
doi = {{10.1046/j.1365-2486.2003.00596.x}},
volume = {{9}},
year = {{2003}},
}