Disentangling gross N₂O production and consumption in soil.

ABSTRACT: The difficulty of measuring gross N₂O production and consumption in soil impedes our ability to predict N₂O dynamics across the soil-atmosphere interface. Our study aimed to disentangle these processes by comparing measurements from gas-flow soil core (GFSC) and ¹⁵N₂O pool dilution (¹⁵N₂OPD) methods. GFSC directly measures soil N₂O and N₂ fluxes, with their sum as the gross N₂O production, whereas ¹⁵N₂OPD involves addition of ¹⁵N₂O into a chamber headspace and measuring its isotopic dilution over time. Measurements were conducted on intact soil cores from grassland, cropland, beech and pine forests. Across sites, gross N₂O production and

SUBMITTER: Wen Y 

PROVIDER: S-EPMC5109911 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature