Microbiological activity and carbon mineralization in pampean soils with different agricultural use intensity

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1 Ecology Laboratory, Terrestrial Ecology Research Program, Basic Sciences Department – Ecology and Sustainable Development Institute, National University of Luján, Buenos Aires, Argentina
2 Agricultural Sciences Department, Faculty of Agricultural and Forestry Sciences, Catholic University of Maule, Talca, Chile
3 Sciences Institute, Area Biology and Bioinformatics, National University of General Sarmiento, Buenos Aires, Argentina
4 Ecology Laboratory, Sustainable Agriculture Research Program, Basic Sciences Department – Ecology and Sustainable Development Institute, National University of Luján, Buenos Aires, Argentina
DOI
10.7287/peerj.preprints.1608v1
Published
Accepted
Subject Areas
Agricultural Science, Ecology, Microbiology, Soil Science
Keywords
Microbiological activity, Soil use, Carbon mineralization, Microbial biomass, Enzymatic activity, Organic matter, Soil respiration, Metabolic quotient, Microbial quotient
Copyright
© 2015 Castro-Huerta et al.
Licence
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ PrePrints) and either DOI or URL of the article must be cited.
Cite this article
Castro-Huerta RA, Momo FR, Falco LB, Di Ciocco CA, Coviella CE. 2015. Microbiological activity and carbon mineralization in pampean soils with different agricultural use intensity. PeerJ PrePrints 3:e1608v1

Abstract

The processes involved in the flows of matter and energy of terrestrial ecosystems depends heavily on soil biological activity, the current conventional agricultural managements could alter the biological mechanisms involved in decomposition and nutrient cycling in agroecosystems. The aim of this study was to compare the activity levels and soil microbial biomass between different agricultural pampean soil uses and its relationship to carbon mineralization. 25 years of agricultural use were compared with 25 years of ecological reserve naturalized where each agroecosystem soil were collected at 61 - 125 - 183 - 236 - 302 - 368 - 431 - 488 days for measuring their moisture, organic matter, enzymatic activity, microbial biomass carbon, soil respiration, metabolic quotient, microbial quotient and carbon mineralization rate. The distance between agroecosystems is less than 800 m, thus assuming the same soil and climatic conditions. The data were evaluated by Friedman test finding significant differences in moisture, organic matter, enzymatic activity, soil respiration y microbial quotient (p< 0.01). Difference was also found in the microbial mineralization rate of carbon (p< 0.1).

Author Comment

This is a preprint submission to PeerJ Preprints.

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