In a new study, supported by a Save the Redwoods League research grant, researchers from Humboldt State University and the National Park Service sought to find out how restoration efforts affected the young forest’s recovery.
For many years, selective thinning has been considered a potential tool for accelerating old-growth forest characteristics in the dense stands of young trees that typically cover harvested redwood lands. Now, research by the US Forest Service has confirmed the wisdom of thinning, or removing select trees to reduce competition in a stand. Learn more about this research.
For more than half a century, the Mill Creek region in Northern California produced lumber. After clear-cutting, too many seeds were planted, producing a forest in which too many young trees competed for light, water and other resources. Now, thanks to Save the Redwoods League, Mill Creek is protected as part of Del Norte Coast Redwoods State Park and is becoming a laboratory for redwood forest restoration. Learn more about this research.
Upland forests in Redwood National Park have been studied extensively. But until a few years ago, less was known about streamside, or “riparian,” forests, which benefit the park’s salmon habitat by providing shade, erosion control and woody debris in the streams. So Humboldt State University graduate student Emily King Teraoka decided to compare two of the park’s riparian forests: one along Lost Man Creek, which had been clearcut between 1954 and 1962; and one along Little Lost Man Creek, which was mostly untouched. Learn more about this research.
Dr. Christopher Keyes and Andrew Chittick have found that thinning—removing select trees in a second-growth coast redwood forest—speeds up the forest’s development of old-growth characteristics, which include tall and bulky trees, small gaps in the canopy through which sunlight can penetrate, trees of varying heights, thicker tree branches, understory shrubs and ferns, and healthy young saplings. Learn more about this research.