Extended Data Fig. 1: Evidence of down-profile transfer of isotopically enriched material over the course of the incubation period.
From: Decadal persistence of grassland soil organic matter derived from litter and pyrogenic inputs
The amount of enriched PyOM material in the top 2 cm decreased over the incubation period (-41%), while the amount of PyOM in the 2-5 cm and 5-10 cm depth increments increased (130% and 353%, respectively). While our sampling was limited to 10 cm at the final harvest, this pattern suggests that down profile movement of the PyOM is an important loss mechanism of PyOM in grassland systems. Bar height represents the cumulative mean (n = 4), error bars are equal to the mean +/- 1 SE.
