Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4390551 | Ecological Engineering | 2010 | 9 Pages |
Abstract
Microbial respiration per unit of soil mass as well as per unit of soil area decreased as site age increased. Microbial biomass, whether expressed as a function of soil mass or area, increased with site age in both reclaimed and unreclaimed sites. When expressed per m2, proportion of deeper soil layers (5-10Â cm) on overall microbial biomass in 0-10Â cm layer increased with site age. This increase was more pronounced in reclaimed than in unreclaimed sites. Cellulose decomposition was highest in 8-year-old sites in the reclaimed chronosequence and in 17-21-year-old sites in the unreclaimed chronosequence. The cellulose decomposition rate was higher in reclaimed than in unreclaimed sites. In reclaimed sites, the decomposition rate depended on air temperature, while in unreclaimed sites other factors, such as moisture deficiency, seemed to drive decomposition rate in some locations. Overall, microbial activity increased faster in reclaimed than in unreclaimed sites, and this difference was most evident in younger sites.
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Authors
Monika Helingerová, Jan Frouz, Hana Å antrůÄková,