Announcements, News Articles & Upcoming Events |
December Board Meeting
The regularly scheduled board meeting for December 10, 2013 has been rescheduled for Thursday, December 12, 2013 at 6:00 pm at the V.F.W. Post #1075 3190 N. Clare Ave., Harrison. Please contact the district office if you have any questions. The Sound Science of Clear-Cuts
(Article courtesy of the Michigan DNR) Dec. 5, 2013 The Department of Natural Resources’ Forest Resources Division is in charge of managing the timber on state forest land. The DNR’s Wildlife Division is in charge of managing the critters. But because forestry practices have a big impact on wildlife habitat, the two divisions co-manage state forests to benefit both timber and wildlife. And although the divisions sometimes have different ideas, both agree on one often misunderstood technique: clear-cutting. “Clear-cutting is a sound scientific management technique for harvesting and regenerating certain forest types,” explained Deb Begalle, forest planning and operations section manager with the Forest Resources Division. “Usually it’s for shorter-lived species – such as aspen and jack pine – which are also sun-loving species. They need a lot of sunlight to establish and grow.” Clear-cutting involves removing virtually all the timber from a stand, which encourages regrowth of the preferred species. But it doesn’t involve stripping the landscape as it did during the timbering era. “Clear-cutting isn’t what it was 100 years ago,” Begalle said. “We leave some trees in place for a variety of reasons – for wildlife, for aesthetics, sometimes in clumps, sometimes individual trees. “People are averse to the look of clear-cuts. They see a lot of slash (branches, logs and other debris from natural occurrences or logging operations) on the ground and find it unsightly. But the slash puts nutrients back into the ground as the branches decompose. It also provides micro-habitat for wildlife species, such as salamanders, and brush piles for rabbits.” DNR wildlife biologist Mark Sargent says young aspen is important to a host of species – grouse, woodcock, deer, rabbits, hare, moose, elk and numerous song birds. “In the case of grouse, young aspen stands provide brood-rearing and nesting habitat and as they grow older, they produce winter food via buds,” he explained. “But young aspen also provides browse for deer, elk and moose – leaves, stems, tops and bark. As the trees grow larger, they grow out of the reach of the animals.” But along with aspen, Sargent said, come other shade-intolerant plants – raspberries, forbs, dogwood and hawthorns – that provide food or cover for wildlife, too. “A clear-cut can create outstanding browse and still provide habitat for grouse and woodcock," he added. "It’s a win-win situation.” The most critical characteristic of clear-cuts is that they really don’t last long. “We always assure trees are going to grow back quickly,” Begalle said. “In the case of aspen, it will come back so quickly that within a year we have seedlings all over the place.” Jack pine, on the other hand, generally has to be replanted. The DNR replants jack pine within two years of a cut. Aspen is typically managed on 40- to 60-year rotations for several reasons. That’s not only when the trees have good timber value, but when they’re prime for regenerating. “The older it gets, the less well aspen regenerates,” Begalle said. “Aspen sort of uses up its vitality. It regenerates through its root system and if it’s losing vitality, it won’t produce as many sprouts.” Clear-cuts maximize regeneration. If an aspen stand is selectively cut, it will not regenerate as well and many trees won’t survive in the shade. Jack pines are usually managed on 50- to 70-year rotations. “If jack pine gets over-mature it’s prone to insect problems – such as jack pine budworm – which increases mortality and the risk of wildfire,” Begalle said. “The older it gets, the more susceptible it is to problems.” However, not all mature or over-mature stands of jack pine and aspen are clear-cut. “We stay out of areas with threatened or endangered species or areas of particular environmental sensitivity, such as natural areas,” Begalle said. “Along water courses, we use the Sustainable Soil and Water Quality Practices manual that was produced by DNR and Department of Environmental Quality, and was last updated in 2009. It’s basically to ensure that no soils or sediments go into the streams and there is shade provided by trees along the waterway.” Clear-cuts tend to be relatively small – averaging 40 acres – and if it’s more than 100 acres, department policy is to review the plan before the timber harvest to make sure it’s justified. Sometimes, however, larger cuts are necessary. One factor on the size of the cut is the habitat requirement by certain wildlife species, Begalle said. “Kirtland’s warbler, for instance, needs hundreds of acres of young jack pine. So we’ll have large timber sales so we can regenerate large areas – sometimes 300-plus-acre clear-cuts.” While the cuts are well-planned, one of the things the DNR is sometimes criticized for is not leaving buffer areas around clear-cuts. “We usually do not leave buffers along private property lines, because people then think that’s the property line,” Begalle explained. “A lot people utilize or build on that uncut area because they believe the cut is the property line. And if we left buffers along all the property lines, that would leave thousands of acres unmanaged. “We try to keep aesthetics in mind,” she continued. “If we have long-lived tree species, such as white pine and oak, we will try to leave those along roadways and private property. But if they’re short-lived trees, or in poor health, they become a hazard or die fairly quickly, and don’t serve the purpose for which they were left. We want to create a new, healthy forest as quickly as possible.” Clear-cuts do not work for all trees, such as hardwoods or saw-log conifers, but where short-lived, shade-intolerant species are concerned, both Wildlife and Forest Resources division staff agree: Clear-cuts are clearly the way to go. For more information about how the DNR manages Michigan’s state forest land, visitwww.michigan.gov/forestplan. |
OAK WILT
More and more people are hearing about oak wilt, but there are some facts worth repeating, and some things that have changed. For readers who haven’t heard about oak wilt, here are the basics: Oak wilt is a fungal disease that attacks all oaks, but red oaks are most susceptible and can die from the disease in as little as three weeks. (Red oaks are the oaks with points on the ends of their leaves.) Oak wilt can spread in one of two ways. First, it can spread from tree to tree through root grafts. If the leaves of two red oaks are touching, there’s a good chance that their roots are connected too. Second, oak wilt can be spread by beetles attracted to the sap of injured trees. These beetles also feed on the fungal pads produced by the oak wilt fungus, so they can pick up the spores of the fungus and transfer it to a wounded but otherwise healthy tree. The best way to keep your oak trees is to prevent infection in the first place. Even a nail can injure a tree enough to attract a beetle carrying oak wilt fungus, and larger injuries have greater risk. It is critical to avoid damage to oak trees while the sap is running, which means waiting until mid-October or later to prune oak trees. If oak trees are damaged by accident or acts of nature in warmer months, use tree paint to cover the wound. If you are concerned about the health of an oak on your property or have questions, please contact the Conservation District Forester, Jocelyn Mahone, at 989.539.6401.
More and more people are hearing about oak wilt, but there are some facts worth repeating, and some things that have changed. For readers who haven’t heard about oak wilt, here are the basics: Oak wilt is a fungal disease that attacks all oaks, but red oaks are most susceptible and can die from the disease in as little as three weeks. (Red oaks are the oaks with points on the ends of their leaves.) Oak wilt can spread in one of two ways. First, it can spread from tree to tree through root grafts. If the leaves of two red oaks are touching, there’s a good chance that their roots are connected too. Second, oak wilt can be spread by beetles attracted to the sap of injured trees. These beetles also feed on the fungal pads produced by the oak wilt fungus, so they can pick up the spores of the fungus and transfer it to a wounded but otherwise healthy tree. The best way to keep your oak trees is to prevent infection in the first place. Even a nail can injure a tree enough to attract a beetle carrying oak wilt fungus, and larger injuries have greater risk. It is critical to avoid damage to oak trees while the sap is running, which means waiting until mid-October or later to prune oak trees. If oak trees are damaged by accident or acts of nature in warmer months, use tree paint to cover the wound. If you are concerned about the health of an oak on your property or have questions, please contact the Conservation District Forester, Jocelyn Mahone, at 989.539.6401.
