Elevated CO2 increases belowground respiration in California grasslands

  title={Elevated CO2 increases belowground respiration in California grasslands},
  author={Yiqi Luo and Robert B. Jackson and Christopher B. Field and Harold Mooney},
This study was designed to identify potential effects of elevated CO2 on belowground respiration (the sum of root and heterotrophic respiration) in field and microcosm ecosystems and on the annual carbon budget. We made three sets of respiration measurements in two CO2 treatments, i.e., (1) monthly in the sandstone grassland and in microcosms from November 1993 to June 1994; (2) at the annual peak of live biomass (March and April) in the serpentine and sandstone grasslands in 1993 and 1994; and… CONTINUE READING