Evidence item

A broader ecosystem carbon accounting from the same four-year site reported that soil CO2 efflux could outweigh aboveground gains, with belowground plant biomass unmeasured; therefore aboveground stock gains should not be translated directly into net ecosystem removal. MEASUREMENT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 25496

Source: Ecosystem responses determine the effectiveness of enhanced rock weathering for climate mitigation · locator {} · excerpt hash sha256:39bb82151e1049ae80789204083ffc764d38192d62a8ae531196d4c808b7cdf5

In a four-year 11.5 ha South Wales ERW-reforestation experiment, tree growth provided estimated additional aboveground carbon removal, but soil CO2 efflux increased substantially; integrating measured fluxes produced a net ecosystem carbon emission over the study period. Belowground plant biomass was not directly quantified.