Study

Above-and belowground responses to tree thinning depend on the treatment of tree debris

  • Published source details Owen S.M., Sieg C.H., Gehring C.A. & Bowker M.A. (2009) Above-and belowground responses to tree thinning depend on the treatment of tree debris. Forest Ecology and Management, 259, 71-80

Actions

This study is summarised as evidence for the following.

Action Category

Remove woody debris after timber harvest

Action Link
Forest Conservation
  1. Remove woody debris after timber harvest

    A replicated, controlled study in 2003-2006 in temperate coniferous forest in Colorado USA (Owen et al. 2009) found that woody debris removal treatments had mixed effects on plant cover and species richness. Six to 18 months after treatment, percentage cover and species richness/m2 of plants were higher in untreated plots and those where debris was cut up and left (46-50% cover, 7 species) than where debris was piled and burned (1% cover, <1 species). After 2.5-3.5 years the percentage cover and species richness/m2 of plants were highest where debris was cut up (46% cover, 8 species), lower in untreated plots (26%-29% cover, 6 species) and the lowest where debris was piled and burned (4% cover, <1 species). Three treatments were applied in three sites (1-2 km2): untreated, piled and burned (cutting trees, piling debris and burning in areas 3–6 m2) and cutting and leaving mulched material (areas 10–12 m2). Monitoring was in a total of 75 untreated, 50 piled and burned and 50 cut up treatment plots (1 × 1 m).

     

Output references

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read latest volume: Volume 17

Go to the CE Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust