Silviculture Trials
Trials are conducted to see if a new approach works better than others used in the past. In the case of silviculture, there may be questions about direct seeding a particular species, prescribed burning, scarification techniques, thinning techniques, etc. Once trials are documented, the results and recommendations should be shared with others in the forestry profession.
Wisconsin trials
This silviculture directory documents silviculture trials conducted by field foresters (DNR, county and others) in Wisconsin. It provides interested individuals with an overview of trials in a variety of cover types. It is intended to increase the awareness of forestry projects in the state. Conversely, it will help identify needs or issues in various cover types for further exploration.
Directory details
To qualify for a trial in the directory, submittals must include documentation about the silviculture project. Documentation includes the project's objectives with site conditions and results (i.e. habitat, soils, equipment used and before/after effects). Trials do not necessarily need to be a full blown research project. However, some measurable effects and results should be documented.
This directory is sorted by cover type. Under each type there is a list of trials. The directory is electronically linked to various files. Click on each title to review the trial's abstract, which outlines the principal investigator, location, project description, results and recommendations. Some trials have more information than others with extensive reports, maps and pictures accompanying the abstract.
The directory then concludes with a sample abstract for your use and submittal. Our hope is to have this as a dynamic directory, each year adding more trials to the list. You can submit trials at any time or if you have any questions, please contact Greg Edge, Wisconsin DNR Forest Ecologist/Silviculturist. We are encouraging all to utilize adaptive techniques in forestry and share the results with others by submitting your trial abstract to us.
Table of contents
Aspen
- Aspen Conversion in the Clay Plain [PDF]
- Oneida County Aspen Thinning [PDF]
- Willow Flowage Aspen Thinning [PDF]
Bottomland Hardwood
General
- Clopyralid Herbicide Trial Abstract [PDF]
- Deer Repellents for Reforestation Plantings [PDF]
- Brule River State Forest Hail Damage Monitoring [PDF]
- Equipment Trial In A WET-MESIC Red Maple Stand [PDF]
- Slash Walls in Red Oak Shelterwood - Waupaca County [PDF]
- Washburn County Mechanical Site Preparation [PDF]
- Washburn County Prescribed Burn [PDF]
Hemlock
- Flambeau River State Forest Hemlock Tree Shelters [PDF]
- Hemlock Conversion - Plunkett Lake [PDF]
- Hemlock Variable Density Thinning [PDF]
Interfering Vegetation
- Ashland County - Pennsylvania Sedge and Ironwood Control [PDF]
- Buckthorn Control and Tree Planting Restoration [PDF]
- Frog Creek Ironwood Control with Salmon Blade – Washburn [PDF]
- GKSF Buckthorn Control Trials [PDF]
- Marinette County Ironwood and Beech Control with Root Rake [PDF]
- Marinette County Ironwood and Beech Control with Dozer/Roller Chopper [PDF]
- Oneida County Pennsylvania Sedge Treatment Study [PDF]
- Washburn County Gap Mowing - Ironwood Control [PDF]
- Washburn County Ironwood Control [PDF]
Jack Pine
- Brule - Anchor Chain Jack Pine [PDF]
- Brule - Presale Straight Blade Scarification [PDF]
- Brule - Presale Scarification [PDF]
- Vilas County - Anchor Chain Jack Pine [PDF]
- Vilas County Post Harvest Scarification [PDF]
- Vilas County - Various Site Prep 1 [PDF]
- Vilas County - Various Site Prep 2 [PDF]
- Washburn County Casey Burn Seeding Study [PDF]
- Washburn County Jack Pine Herbicide Treatment [PDF]
- Washburn County Oak Lake Fire Regeneration [PDF]
Northern Hardwood
- Ashland County Site Scarification [PDF]
- Experimental Shelterwood Washburn County [PDF]
- Headwaters Area Northern Hardwood Site Quality Assessments [PDF]
- Vilas County Strip Clearcut [PDF]
- Vilas County - Regenerating Yellow Birch with Gaps and Scarification [PDF]
- Washburn County Crystal Lake Thinning Techniques [PDF]
Red Oak
- Bolger Lake Oak Regeneration [PDF]
- Barron County Oak Shelterwood and Site Preparation [PDF]
- Douglas County Oak Shelterwood and Prescribe Burn [PDF]
- Northern Highland American Legion SF McGrath Rx Burn [PDF]
- Oneida County - Thunder Lake Oak Shelterwood/Site Prep [PDF]
- Oneida County - McGrath Lake Shelterwood and Prescribed Burn [PDF]
- Sawyer County Scarification [PDF]
- Sawyer County - Salmon Blade [PDF]
- Sawyer County - Dozer and Salmon Blade 1 [PDF]
- Sawyer County - Dozer and Salmon Blade 2 [PDF]
- Scarification Trial in Red Oak [PDF]
- Shelterwood and Burn in Red Oak on NHAL State Forest [PDF]
- Vilas County - Anchor Chain Oak [PDF]
- Washburn County Beaver Brook Oak Shelterwood [PDF]
- Washburn County Crystal Oak Shelterwood [PDF]
- Washburn County Dugan Lake Oak Shelterwood [PDF]
- Washburn County Whalen Creek Shelterwood/Site Prep [PDF]
Red Pine
- Northern Highland American Legion SF Star Lake Plantation [PDF]
- Vilas County Shelterwood with Site Prep [PDF]
- Willow Flowage Indian Point Rx Burn [PDF]
Swamp Conifer
- Brule River State Forest White Cedar Treatments [PDF]
- Oneida County Swamp Conifer Strip Harvest [PDF]
- Washburn County Swamp Conifer Strip Harvest [PDF]
Swamp Hardwood
White Birch
- Oneida County Jacobs Birch Shelterwood [PDF]
- Langlade County White Birch Release [PDF]
- Oneida County White Birch Shelterwood/Scarification [PDF]
- Pence Lake Scarification - Langlade [PDF]
- Vilas County White Birch Shelterwood/Scarification [PDF]
- Washburn County White Birch Shelterwood/Scarification [PDF]
White Pine
- Vilas County - Shelterwood with Brush Rake Scarification [PDF]
- Waushara County - Conversion and Release [PDF]
- Vilas County - Seed Tree, Anchor Chain, Bracke [PDF]
- Vilas County - Shelterwood, Brush Rake, Bracke [PDF]
- White Pine Aerial Seeding - GNA [PDF]
- Overstory Removal and Natural Conversion to White Pine [PDF]