Windbreaks – Agroforestry for Any Property
I regularly talk with foresters, farmers and woodland owners who have not thought twice about agroforestry. I get it. Some people have never heard of it, and others think I’m talking about putting cows in the woods. However, agroforestry consists of five very different primary practices (outlined here) that are applicable to to a variety of situations. More importantly, the principles behind the practices are useful for any landowner to understand. To outline my point, consider the example of windbreaks, one of the most adaptable agroforestry practices.
A windbreak, also called a shelter belt, is a planting of one or more rows of trees or shrubs that provides protection from the wind. Whether you’re trying to shelter structures, block snow from roadways, protect crops in the garden, or make your land more hospitable to wildlife, it’s worth considering installing a windbreak.
When properly planned, planted, and maintained, windbreaks have numerous economic and environmental benefits. Windbreaks can provide summer shade and block wind year-round to reduce home energy use. The planting can also include trees and shrubs that provide fruit or nuts for people and wildlife, and flowering species to help support pollinators. Using plants with colorful stems and foliage is a great way to improve the beauty of your property in every season.
Additionally, in the relatively flat topography found throughout much of Wisconsin, windbreaks add three-dimensional structure to the landscape. This structure can act as noise and visual screens and create micro-climates that improve habitat diversity. Micro-climates are small areas that differ in temperature and exposure to wind, light, and moisture. Increasing the variety of conditions on your property expands the diversity of species it can support, whether they’re wildlife, agricultural, or horticultural.
Planning Your Windbreak
Windbreaks work best when they consist of several rows of plants with different growth patterns. When choosing species and planting layout, it’s important to consider the plants potential height and density. Those factors help determine the necessary plant spacing and overall windbreak length and width. This species guide from the USDA will help you select the right balance of species to create an effective windbreak.
Some great native plants from Wisconsin to consider including are hazelnut, highbush cranberry, serviceberry, elderberry, wild plum, aspen, dogwoods, cedars, oaks, and white spruce.
It may be worthwhile to consult a local wind rose (example shows average wind speeds on a compass rose) to help align the windbreak perpendicular to prevailing winds in the right season of the year. Just make sure the design fits both your goals and the local landscape, because windbreaks are not a cut and paste practice.
When planning a windbreak, it’s a good idea to talk with your county’s service forester about your property and species selection. They can help with the layout and provide tips for site preparation and planting best practices. Windbreaks require maintenance after planting as well, like watering, weeding, and pruning. After establishment, it’s a good idea to continue monitoring plant health in an on-going basis, which your forester can help with too.
Recognizing all the benefits of living windbreaks, the USDA has included them as one of the core agroforestry practices in Wisconsin. Under the right circumstances, this makes them eligible for cost-share and technical assistance programs. Contact your local USDA service center to learn more. Even if you’re not eligible for their programs, the USDAs technical standards are a great guide for the decisions you’ll have to make if you think a windbreak is right for your land.
I hope this overview of windbreaks gets you to think again about how agroforestry can help you get more from your land. If you’re interested, I encourage you to check out this website from the USDA’s Nation Agroforestry Center to help get started with agroforestry on your property.