Renewable Resource answers...

1.

Is cutting timber good for the forest and the environment?

Yes. Forests are dynamic, or constantly changing. Forest disturbances, including natural ones like fire, are visually dramatic but a natural process in the life of the forest. A young aspen forest produces 11 times the oxygen as a mature aspen forest. Many wildlife species depend on the “edge effect” created by timber harvesting. Older, over mature forests are susceptible to disease or insect infestations and blow down from storms. Maintaining a healthy forest combats this mortality.


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2. What types of trees do I have?

Your forester will be able to identify the species on your land through field examination and as part of a written forest management plan. There are also several good books which help with tree identification or Dendrology (the study of trees).

 
3. How many trees do I have?

On average, a 40 acre parcel of land which is entirely stocked with trees has about 750 cords or about 3,000 trees. Your forester will be able to “cruise” the land and estimate the amount of cords. [a cord is equal to a 4 ft. wide x 4ft. tall x 8 ft. long pile of logs]. In Minnesota, the average stand of timber has about 22 cords per acre, but of course, this is highly variable within each individual timber stand.

 
4. What will my property look like after a timber harvest? (see picture)

There is no denying that your forest will look very different than before it was logged. The amount of disturbance and time to reforestation depends heavily on the type of harvest and species of trees in the stand. For example, aspen are typically clear-cut, resulting in a very drastic change in appearance. But new sprouts grow so fast that the site will be reforested in 5 years or less. At the other extreme, you may barely notice a selective thinning of a hardwood stand.

Typically your land will have residual tops and limbs scattered throughout the harvest site, or piled in clumps or windrows. There should be scattered snags and residual trees left standing.

The timber sale specifications will determine the type of harvest necessary to provide the desired results on the land. Some examples are:

  • At the “landing” (central area for processing trees), you can have the residual non- merchantable parts of trees (slash) piled for burning or scattered back out on the site.
  • You can also choose to reserve some trees for esthetics and soften the impact of the changed landscape after harvesting.
  • Another technique is to leave a buffer strip along roads or vistas for visual enhancement.
  • Trees are often left along rivers and streams


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5. Will I need to replant my trees? What will it cost?

Some species will require replanting. Aspen, birch, basswood and other species naturally re-sprout from the old tree roots or stumps and do not require planting. Oaks, some pines and birch benefit from leaving seed trees to naturally regenerate stands. Most conifers do best if replanted after harvest. Your forester can answer your specific forest regeneration requirements.

The cost of replanting is dependent on a variety of factors. You need to prepare the site prior to planting and maintain brush control for several years after planting. Ask your forester for advice and cost estimates.


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Forestry Affiars Committee
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