How mounds are made matters: seismic line restoration techniques affect peat physical and chemical properties throughout the peat profile

Seismic lines are prominent linear disturbances across boreal Canada with large-scale consequences to wildlife and ecosystem function. Although seismic line restoration has been observed improve tree growth survival, application in peatlands shown alter functions such as hydrology carbon storage. The most common active method is called mechanical mounding, where the classic technique inverts peat profile. New mounding methods that maintain profile may provide benefits by preserving existing vegetation reducing disturbance. To determine effects of different on soil quality, we collected analyzed cores from two sites for various properties (C/N ratios, δ 13 C, 15 N, Fourier transform infrared (FTIR) spectroscopy humification indices). Vegetation surveys were also conducted. both a collection crossing poor fens Alberta. One site was treated method, while other new methods. Classic significantly increased degree decomposition, indicative lower substrate quality. Mechanical greatly reduced moss cover introduced large amounts bare ground cover. newer did not result these changes largely comparable natural communities. Preserving support faster return