Millions of new saplings sprouting each year might seem like a good thing. But in reality, their spread across vulnerable grasslands and shrublands is upending ecosystems and livelihoods. Via WIREDUK
“From a producer’s perspective, you want to tackle woodland expansion before you start seeing herbaceous production drop off. If you wait until you have 10, 20, or 30 percent tree cover, you’re seeing big impacts on forage production, and tree removal becomes very expensive,” says Morford.are great outreach tools so “landowners can see what’s happening to their ground” and take action to halt woody encroachment.
Woody encroachment is also threatening the viability of ranchers further west in the sagebrush biome, an arid landscape dominated by shrubs, grasses, and wildflowers that covers an area larger than Ukraine across 11 Western states. According to areleased earlier this year, tree coverage has increased sixfold in sagebrush country over the past 150 years. “Wherever we have thick juniper, we’ve got very little grass.
to target tree-removal efforts. The partnership has restored nearly 40,000 acres of grazing land in Montana. Similar technology is also being used to evaluate the effectiveness of projects that tackle woodland expansion. Ameasured the change in herbaceous plants after tree-removal efforts on pastures in Oregon, Nebraska, and Kansas, showing mostly positive results. “These next-generation technologies unify neighbors around dealing with shared problems,” says Caleb Roberts, a research ecologist with the United States Geological Survey in Arkansas who led the study.
Back in the Sand Hills, Cooksley and her husband are making a succession plan to pass on the ranch to their family. Part of that plan includes continuing her legacy of controlling woody encroachment. If she sees a seedling sprouting on her daily drives around the ranch, Cooksley always stops to cut it down, and she makes sure her children and husband keep a pair of loppers handy in their trucks too.
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