Changes in water‐soluble nitrogen and organic carbon in the post‐fire litter layer of Dahurian larch forests

Boreal forests account for one third of terrestrial carbon stock. Wildfires are an important perturbation this pool, affecting in particular the litter layer. After forest fires, layers may possess shifting chemical property and decomposition dynamics due to changes post-fire vegetations succession abiotic factors. We measured water-soluble organic (WSOC) nitrogen (WSN) Oi Oe horizons boreal along a gradient fire history northeastern China. found that WSOC WSN concentrations layer were higher than those The markedly altered by fires showed different responses ecological succession. time since had significant positive correlations with layers. Interestingly, distance-based redundancy analysis structural equation model indicated factors additional also strongly influenced matter (WSM) properties. Biotic more correlated WSM properties Although biotic contributed less properties, they still play roles burned area. Our results show manipulating can be management strategy restoration, which assist overall restoration faced increasing danger wildfires changing global climate.