Bjerkness – Fletcher

Block 1:

Site conditions reflect a mid-slope ecosystem with cool to warm eastern exposure. The terrain is broken by a series of shallow bedrock ridges and low sloped benches. Surficial Brunisolic soils consist of colluvial and morainal materials. Soil textures are well drained sandy loams over silty loams with coarse fragments of gravel and cobble sizes. The majority (87percent) of the southern portion of this small block lies within the Fletcher Community Watershed. Slopes are moderately steep throughout. The block has a subxeric hygrotope and a poor-medium nutrient regime. Wildfires and windthrow have driven natural disturbance in the past due to shallow rooting on partially exposed bedrock ridges. Root rot is endemic at moderate virulence.

Block 2:

Site conditions reflect a mid-slope ecosystem with a cool and northern exposure. The block lies fully within the Bjerkness Community Watershed servicing 56 water licenses. Soils in the western portion of the block consist of shallow colluvium over rock and sandy gravel with silty-loam pockets. A 7 m wide and 3m deep gully drops from the switchback junction into Bjerkness Creek. The site has highly transitional climatic influences from both, ICHdw1 and ICHmw2. Slopes are steep throughout. Windthrow history is evident, due to shallow rooting on bedrock. The eastern portion of the block contains rock steps, colluvium, and well developed gravelly sandy-loam soil horizons containing silty clay-loam pockets. Two gullies convalesce in the center that wear signs of recent scouring. Next to these gullies a large spring surfaces in the lower mid-section of the block.

Block 3:

Site conditions reflect a mid-slope ecosystem situated on a warm South-eastern exposure. The terrain is broken by a series of shallow bedrock steps and low sloped benches. Surficial Brunisolic soils consist of colluvial and morainal materials. Soil textures are well drained sandy loams over silty loams with coarse fragments of gravel and cobble sizes. The site has highly transitional climatic influences from both, ICHdw1 and ICHmw2. The block lies fully within the Fletcher Community Watershed. Slopes are varied and range from 15 to 90%. The Southern portion of the block borders the top of the inner gorge of Fletcher Creek (S-3), which flows 60m to the south. Wildfires and windthrow have driven natural disturbance in the past. Root rot is endemic at moderate virulence.

[click map to expand]