Fig. 3: Sediment C quality and reactivity, and decadal projection of C stores.
From: Beavers can convert stream corridors to persistent carbon sinks
a Mean C content of pyrolysable organic C (PC), recalcitrant organic C (RC), and total inorganic C (TIC), in forest soils (F), floodplain sediments pre-beaver introduction (Bpre), intermittently inundated beaver wetland sediments (Binter), and permanently inundated beaver wetland sediments (Bperm). b C reactivity ratio representing organic C stabilisation with lower values. I-index = preservation of PC and R-index = contribution of RC in sediments. Sediment and soil interfaces were compared using a one-way ANOVA with Tukey’s post-hoc test, with letters indicating which interfaces are statistically different from one another (p < 0.05). c Projection of cumulative C mass storage of sediment and deadwood C fractions throughout beaver dam construction, complete sediment infilling of wetland, and stabilisation of C storage.
