
Reforestation
Envisioning a Forest Among the Trees.
“Acts of creation are ordinarily reserved for gods and poets.
To plant a pine, one need only a shovel.”—Aldo Leopold
A lot has changed since the days that conservationist Aldo Leopold planted thousands of trees around his family’s weekend getaway cottage—a chicken coop he called “the shack”—on his old farm in central Wisconsin, made famous by his tome, A Sand County Almanac. Today, we have GPS, the Internet, iPods, and ATVs.
Despite technological progress, planting trees remains largely an endeavor done with our hands: tree by tree, row by row, acre by acre, just as in Leopold’s day and with about the same love of the land and spirit of stewardship. Many rural landowners envision stands of mixed hardwoods or confiners, stands that they may toil today to plant so that their children might enjoy some shade in the future and their grandkids could harvest to pay for college. Other landowners enjoy the beauty of their woodlands and plant trees for recreation or to provide wildlife habitat.
“I planted trees not long after I purchased the 65-acre farm,” says Paul Bader, now serving as the forestry management coordinator for the Kickapoo Woods Cooperative based in La Farge. A Vernon Electric Cooperative member since 1970, Bader has been planting trees with his family to transform a beef cattle pasture into a thriving stand of mixed hardwoods and conifers, designing saw mills on the side. As of 2001, he’s been working with the Kickpoo Woods Cooperative, an organization with 201 members and more than 20,000 acres of forest, to assist private landowners with management services such as marking and inventorying timber, compiling cutting notices, and marketing the harvest. These days, he hardly has a day off.
Stewardship, Restoration
Like Bader, Wisconsin’s DNR foresters are also a busy bunch, since about 57 percent of Wisconsin’s forests are privately owned by 272,000 individuals or families, according to the University of Wisconsin Extension. Some private landowners enroll in the Wisconsin Managed Forest Law program, which provides property-tax breaks for managing their woodlands, or in other federal programs such as the Conservation Reserve Enhancement Program (CREP). Both programs foster active stewardship of forests, sometimes involving reforestation of existing woodlands or afforestation (converting cropland or pasture into forest).
“Every year Wisconsin landowners plant millions of tree seedlings to enhance and restore native forests,” says Greg Edge, a tree nursery specialist with the Department of Natural Resources. “If you’re thinking about doing a large tree-planting project, contact your local DNR forester or a private consulting forester for advice on species selection, site preparation, planting methods, cost sharing programs, tree planter rentals, and other considerations in establishing a successful forest tree planting,” suggests Edge.
A Forest Feeding Frenzy
Throughout most of Wisconsin’s countryside, record-setting numbers of white-tailed deer are eating away at the state’s forests. Nationally, the deer population has exploded from 500,000 in the 1900s to over 25 million today. Expanded hunting policies have not diminished the deer population boom that has resulted, in part, from changing land use practices and ownership.
Now forest landowners are being forced to adopt aggressive steps to protect their newly planted trees.
“The tree seedlings sticking up out of the snow are perfect for deer to come along and browse on the terminal buds, turning an oak or maple tree into a bush,” observes Bader, who spends much of his time managing damage control after landowners recognize the problem.
“There’s a lot that can prevent a successful tree planting,” admits Mark Shepard, vice president of the conservation non-profit organization Southwest Badger Resource Conservation and Development Council based in Lancaster. “In addition to deer browse, weed control, rabbits, and other small animal browse, weather, tree planting technique, and getting good seedling stock can all determine whether landowners end up with a field of trees or nothing at all.”
Donald Waller, a professor of botany and environmental studies at the University of Wisconsin–Madison, agrees. “Hunting is a good place to start to manage for deer, but landowners may also be forced to choose between either less browse-sensitive trees or defending those seedlings in some way with tree shelters, deer repellents, or fencing,” advises Waller. “Northern red oak, northern white cedar, and hemlock would be hard to get going under current conditions.”
Such realities are echoed by Charly Ray, general manager for the Living Forest Cooperative based in Ashland, with most of its 155 members served by the Bayfield Electric Co-op. “Getting the forest to regenerate in the face of over-abundant deer is the biggest issue,” he admits. “The cedar and hemlock are candy to the deer.”
Just Browsing…
The Living Forest Cooperative provides forestry management and educational services for its members, working toward a vision of delivering timber products from “the floor of the forest to the floor of your home.” Some of the co-op’s efforts are devoted to pooling together timber harvests by forest landowners, many with small acreages, and creating more profitable, value-added forest products.
“Browsing by white-tailed deer has been a growing problem for Wisconsin landowners planting seedlings for reforestation purposes,” according to the Wisconsin DNR’s report, “Deer Repellents For Reforestation Plantings,” based on the 2003 Governor Knowles State Forest Deer Repellent Study. “The state nurseries shipped over 17 million seedlings, over 80 percent of which are subject to browsing.” The Wisconsin Council on Forestry, a diverse group of leaders in the forestry community appointed by Governor Doyle, likewise identified deer browse as the most significant barrier to successful forest regeneration.
For deer and small animals that browse on trees, a variety of reforestation aides are available, including tree shelters that surround the trees, deer repellent, and spiral tree guards. For more than a decade, Southwest Badger RC&D, has assisted forest landowners with their reforestation efforts, emerging as the Midwest’s leading supplier of affordable reforestation aides such as tree shelters, deer repellents, and weed mats. Sales of its reforestation aides help support the work of the organization. No products trump active stewardship on the part of the forest landowner, though.
“The biggest concern in forestry is natural forest regeneration,” confirms Nancy Bozek, executive director of the Wisconsin Woodlands Owners Association, a statewide educational non-profit organization with over 2,200 members. The association devoted its entire Summer 2006 newsletter to the threat posed by record-level deer herds, focusing on helping its members better understand what’s going on in their woods.
Changing Land Use and the Great Exotic Invasion
Existing forests are also under threat by encroaching homes and the parcelization of land into smaller and smaller chunks. “Huge areas of forests are being broken off into 20-, 40-, or 60-acre parcels,” explains Bader. A growing number of rural homeowners face challenges in securing a timber harvest and sale on small acreages. “It’s more difficult to manage and challenging to put together a profitable timber sale when the time comes,” he continued.
Then there’s the onslaught of invasive exotic plant and insect species. Common buckthorn, bush honeysuckle, and multiflora rose threaten to undermine native tree species unable to emerge from beneath the shadows of these fast-growing plants. Garlic mustard growing rampant in some parts of the state actually changes the soil chemistry and inhibits tree growth, according to Bader. As it turns out, invasive species are such a statewide issue that Governor Doyle declared June 2007 as “Invasive Species Month,” a designation designed to make people more aware of invasive plant species as well as insects such as the gypsy moth and emerald ash borer.
“The impacts of invasive plant species are getting a lot worse because many exotic species spread rapidly, lack any form of natural control, and tend to have longer growing seasons than native species,” says Dan Bohlin, the forest invasive plants specialist with Southwest Badger Resource Conservation and Development. He works with private woodland owners to determine if invasive species exist on their lands then assists landowner with information and steps to control the problem. Thanks to his grant-funded position, Bohlin’s services are offered free to the forest landowners in the nine counties in southwest Wisconsin served by the organization. County DNR foresters are another place to turn for help.
Bohlin offers five action steps for forest landowners when it comes to managing invasive species. First, carefully examine your forest to determine if any invasive species are present. Second, prevent the spread of any species found (in the case of garlic mustard, by not walking or driving through the impacted area). Third, control the invasive species by removing and destroying it. Fourth, monitor the affected area on a regular basis since often a seed bank can exist (up to seven years in the case of garlic mustard). Finally, work on restoration of the area. “If you’ve eradicated an area of garlic mustard,” advises Bohlin, “plant some trees in its place. And don’t forget to protect your trees from deer with tree shelters or other reforestation aides.”
Global Perspective
Many who concerned about global climate change frequently cite “sequestration” (capture and storage) of carbon dioxide as one means of mitigating impacts of greenhouse gases. Trees provide an important ecological “service” of naturally sequestering atmospheric carbon dioxide and, in turn, supplying oxygen. It’s been argued that unwise land use decisions over the past several hundred years have had a role in exacerbating CO2 impacts, with widespread forest removal dating to the time in Europe when lumber was in great demand for fleets of wooden ships. Ongoing in the present, there’s rapid deforestation in rainforests around the world, in part, to supply materials for the construction industry or make way for agriculture.
“Forests provide a huge carbon sink,” explains Bader. “Trees process carbon dioxide, storing carbon in their woody tissues and release oxygen. If you’re concerned at all about global warming, you should be concerned about forest growth.” Yet forests are disappearing around the world at unprecedented rates; rainforests are disappearing by about the size of a football field every second.
Planting for the Future
Wisconsin has a field of opportunity when it comes to planting trees. Modern farming practices have also allowed farmers to produce more on less land, freeing up acreage for forestry purposes.
“I don’t look on my forest as a profitable venture for myself,” concludes Bader. It will be a financially profitable venture for his grandson, who, appropriately enough, is named Forrest. “Trees take a long time to grow.”
“Planting trees is about ecological restoration and diversifying the forest economy,” observes Ray, who is quick to point out that only 1 percent of Wisconsin’s ancient forests remain. “There’s a lot more strength in a diversified forest that can produce timber for both sawlogs and pulpwood.” Sawlogs can be turned into value-added products such as flooring or paneling while pulpwood gets turned into paper products. “Our Living Forest Cooperative members want to restore the structure and forest function,” says Ray.
Unlike Leopold, we’ll need to do a lot more than to plant a few acres of trees and hope enough will grow into a forest. Forest landowners these days need to consider multiple factors in order to have a successful tree planting and need to work with their foresters, conservation organizations like Southwest Badger RC&D, and forestry cooperatives around the state to help them achieve the legacy they desire. And they need to be prepared for the hard-but-satisfying work ahead to benefit their communities and coming generations.—John Ivanko
Ivanko, of Browntown, Wis., is a forestry consultant who works with with Southwest Badger RC&D.