When you think of the Midwest, images of vast cornfields and soybean expanses often come to mind. But beneath that familiar agricultural tapestry lies another vital resource, one that’s been quietly supporting livestock and ecosystems for generations: pastureland.
It might surprise you to learn that pastureland makes up a significant chunk of the non-Federal landscape across the contiguous United States – about 6 percent, which translates to nearly 121 million acres. And when we zoom in on the Midwest, this resource really shines. In fact, a substantial portion of the nation's non-Federal pastureland is concentrated right here, alongside the South Central and Southeast regions. It’s a cornerstone of grazing land science, a subject that the U.S. Department of Agriculture's Natural Resources Conservation Service (NRCS) diligently surveys.
Looking at data collected between 2013 and 2016, the NRCS's National Resources Inventory (NRI) gives us a fascinating glimpse into what’s growing on these lands. They break down the plant life into functional groups – think leguminous forbs (like clover), non-leguminous forbs, cool-season grasses (C3), warm-season grasses (C4), and woody species. It’s like a botanical census, helping us understand the health and composition of these grazing areas.
In the Midwest, for instance, cool-season (C3) grasses are quite dominant, often making up over 60 percent of the foliar cover. This is a key finding, as these grasses are well-suited to the region's climate and provide excellent forage. Leguminous forbs also play a role, contributing around 11 percent on average. These plants are not just greenery; they're nitrogen fixers, enriching the soil naturally, which is a huge win for sustainable agriculture.
It's also worth noting that most of this pastureland isn't irrigated. The Midwest, like many other regions, relies on good old rainfall to keep the grass growing. This rainfed aspect is crucial, especially when considering the impacts of drought and water availability.
The NRI survey doesn't just look at what's growing; it also examines how these lands are used and what conservation practices are in place. While the data focuses on non-Federal lands, it paints a broad picture of the health and management of these critical grazing areas. Understanding the composition of forage species, identifying resource concerns, and tracking conservation efforts are all part of ensuring these pastures remain productive and resilient for years to come. It’s a reminder that the Midwest’s natural resources extend far beyond the crops we see from the highway, reaching into the very soil that sustains its agricultural heart.
