摘要：In boreal areas where forestry extends to drained peatlands, erosion and sediment transport from ditch networks are among the most harmful effects of forestry. To explore and quantify the initial bank erosion processes at their source area, topography of a 3.8-metrelong section of a newly cleaned ditch bank was measured at different times with a pin meter. The risk of erosion in the ditch bank was increased by generating elevated water table conditions using artificial irrigation. Erosion and soil deposition were estimated by calculating the changes in the bank topography between the sequential measurements. The total erosion was 41 kg m–1 within the studied stretch. The eroded material was deposited at the bottom of the ditch and exposed to transportation only later during greater discharge events. The pin meter was found to be a workable device for detecting the erosion-induced changes (1–15 cm) in the ditch dimensions.
