The European Commission recognises the essential role of soil biology in soil functioning and deliveryof ecosystem services, but information is currently lacking evaluate of how these vary across soiland land-use types at a European scale. This study evaluated the measurement of the initial rate ofsoil basal respiration (BR) as a potential biological indicator of ecosystem service provision. The purposeof this study was to test ISO 16072:2002 (Soil Quality: Laboratory methods for the determiningof microbial soil respiration). In the literature a range of pre-incubation temperatures (pre-inc) andexperimental incubation temperatures (exp-inc) have been applied when using the ISO method forthe establishment of basal respiration. This study evaluated whether the range of temperatures appliedduring pre- and exp- incubation had a significant effect on the rate of respiration determined when followingthe protocol established in ISO 16072:2002. The evaluation was carried out on a pedo-climaticgradient spanning ten countries across Europe and covering four biogeographical regions. Three siteswere sampled in each country providing a range of soil and land-use parameters. Our results suggestthat experimental incubation temperatures of 20 ◦C or above should be used in the applicationof the methodology ISO 16072:2002 (incubation at 15 ◦C resulted in erratic variation between replicates).However, pre-incubation temperature did not affect the soil basal respiration rate, when followingthe standard recommendations. The time interval with the best prediction of the initial rate of basalrespiration was 6 h.
|Numero di pagine||10|
|Stato di pubblicazione||Published - 2014|
All Science Journal Classification (ASJC) codes
- Ecology, Evolution, Behavior and Systematics