Download presentation
Presentation is loading. Please wait.
Published byConrad Ferguson Modified over 9 years ago
1
Careful Logging – Partial Cuts Water and Wetlands Concerns Significance What are the Standards / Expectations? What are my Responsibilities? BMP’s
2
Careful Logging – Partial Cuts Water and Wetlands Concerns – type of waterbodies to consider? LakesPonds (½ – 8 ha.) Rivers
3
Careful Logging – Partial Cuts Water and Wetlands Concerns – type of waterbodies to consider? Mapped Streams Unmapped Streams, springs, seeps… Need a better example of a mapped stream?
4
Careful Logging – Partial Cuts Water and Wetlands Significance – harvest affects vary by scale At catchment level: watering-up – rise in groundwater after harvest Trees are natural “pumps” When removed, reduced transpiration, evaporation interception
5
Careful Logging – Partial Cuts Water and Wetlands Significance – where does the water go? more water moving through soil into lakes & streams – even 5-10 years later Carrying nutrients and also some heavy metals
6
Careful Logging – Partial Cuts Water and Wetlands Significance – mineral soil exposed leads to more water movement across land sedimentation deposits into lakes & streams And that means:
7
Careful Logging – Partial Cuts Water and Wetlands Significance Reduced light penetration in water Affecting fish ability to hunt Clogged fish gills Spawning areas covered (suffocating eggs & fry)
8
Careful Logging – Partial Cuts Water and Wetlands Significance – the LAW federal Fisheries Act (RS 1985) “any work...results in the harmful alteration, disruption or destruction of fish habitat” – a “HADD” “no person shall deposit…a deleterious substance of any type in water frequented by fish”
9
Careful Logging – Partial Cuts Water and Wetlands Sources of Sediment: #1 – poorly installed crossings Therefore – water crossing guidelines!
10
Careful Logging – Partial Cuts Water and Wetlands Sources of Sediment: Roads / Landings / Pits Therefore – AOC’s around water to restrict road building Up to 90m on steepest slopes
11
Careful Logging – Partial Cuts Water and Wetlands Sources of Sediment: Less significant – Rutting Mineral soil exposure Greatest concern – within 15m of water
12
Careful Logging – Partial Cuts Water and Wetlands Your responsibility? AOCs marked before harvest Unmapped streams, ephemeral streams, seeps, groundwater flows You will find them first – You have to be able to identify the value & modify operations
13
Careful Logging – Partial Cuts Water and Wetlands Your responsibility? Know BMPs to reduce sedimentation In clearcuts – know which trees to retain for wildlife in shoreline areas
14
Careful Logging – Partial Cuts Water and Wetlands Standards: AOCs Aquatic feature 3 m no machine zone 15 m no soil disturbance zone Total AOC
15
Careful Logging – Partial Cuts Water and Wetlands Standards: AOCs 3 m no machine zone Harvest OK, but No machinery except at approved X’ings Don’t fell tree into water – problem when you drag it out!
16
Careful Logging – Partial Cuts Water and Wetlands Standards: AOCs 3 m no machine zone If drag tree out, risk – disrupt aquatic env. damage shoreline damage shoreline vegetation
17
Careful Logging – Partial Cuts Water and Wetlands Standards: AOCs 3 m no machine zone If tree falls in water – leave it Protect root mat, avoid cutting shrubs, saplings, unmerchantable trees Don’t put slash in water
18
Careful Logging – Partial Cuts Water and Wetlands Standards: AOCs 15 m no soil dist. zone Machinery permitted but No ruts Ruts expose min. soil & channel water No significant mineral soil exposure
19
Careful Logging – Partial Cuts Water and Wetlands Standards: AOCs Rest of AOC (15-75 m) Standard operating procedures to minimize rutting / compaction
20
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Recognize Values (streams) Doc – I’ll leave this and the next 3 slides in, in case you can use some of the images in the mapped / unmapped discussion.
21
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Recognize Values (streams) PermanentIntermittent
22
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Recognize Values (streams) PermanentIntermittent
23
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Recognize Values (streams) PermanentIntermittent
24
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Mapped Streams no skidding across stream except at approved crossings cross streams at right angles
25
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Mapped Streams No crossing without a proper structure Minimize crossing distance
26
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Unmapped Streams no machine travel except at minimum # of crossings – leads to soil exposure crossing to be approved by SFL
27
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Unmapped Streams Ford stream ONLY if no risk of damage to banks, exposed mineral soil, or disrupting stream flow
28
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Unmapped Streams Use temporary structures – portable skidder bridge, ice bridge, brush mat / geotextile When done, remove crossing, restore stream
29
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Any Stream Crossing No trees / debris deposited in water No equipment damage to steam banks or beds Don’t fell trees into 3m AOC – risk disturbance to stream bank, soil exposure Avoid activity during wet weather
30
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Any Stream Crossing Avoid activity during amphibian breeding / egg laying season Disperse concentrated flow of water thru areaTrails / portage routes – rehabilitated and cleared No refueling / lubrication / washing of equipment where water will flow into creek
31
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Any Stream Crossing Minimize amount of fill and dirt entering the stream Use gravel materials -- easy to recover in restoration
32
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Any Stream Crossing On approaches – skid with the contour on grades, no sharp right angles avoid creating ruts that could channel into the stream (no sediment plumes)
33
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Ephemeral streams, seeps, etc connected to fish habitat – No rutting or significant MSE – could lead to soil movement during later rain events Use brush mats or other techniques – do not disrupt water flow Ensure adequate cross drainage
34
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Wetlands Crossing precautions: Only if no reasonable alternative Avoid areas with moving water that do not freeze well Design so will remain stable, will not restrict water during wet periods
35
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Wetlands Crossing precautions: Minimize length and width thru wetland Temporary crossing preferred – on frozen ground, using brush to avoid rutting
36
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Wetlands (seeps/ shallow ground water flows) stay out, but if no choice (long / linear) -- cross at narrowest part possible use brush mats skid away from streams and drains plan ahead - how will you stabilize the site if it gets wet?
37
Careful Logging – Partial Cuts Water and Wetlands Tree retention, shoreline areas – why? Required as future logs in water Functions – Cover and reproductive habitat - bass / muskie Living surface, plants / insects Protects shore from erosion Traps sediment, creates pools for fish
38
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Tree retention, shoreline areas Within 10 m of water, spaced 10 m apart Conifers – last longer than hardwoods in water – cedar, white pine, hemlock, white spruce, jack pine… At least 15 m tall Closer to water, and leaning toward water
39
Careful Logging – Partial Cuts Water and Wetlands BMP’s: Tree retention, shoreline areas In rest of AOC, leave – Living trees Supercanopy trees Large cavity trees veterans
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.