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The Multiple-Use Sustained-Yield Act of 1960 (or MUSYA) (Public Law 86-517) is a federal law passed by the United States Congress on June 12, 1960. This law authorizes and directs the Secretary of Agriculture to develop and administer the renewable resources of timber, range, water, recreation and wildlife on the national forests for multiple use and sustained yield of the products and services.
Biologists use the concept of maximum sustainable yield (MSY) or mean annual increment (MAI), to determine the optimal harvest age of timber. MSY can be defined as “the largest yield that can be harvested which does not deplete the resource (timber) irreparably and which leaves the resource in good shape for future uses”.
The Oregon and California Revested Lands Sustained Yield Management Act of 1937 (43 U.S.C. § 2601), commonly referred as the O&C Act, directed the United States Department of the Interior to harvest timber from the O&C lands (as well as the Coos Bay Wagon Road Lands) on a sustained yield basis.
Forestry laws govern activities in designated forest lands, most commonly with respect to forest management and timber harvesting. [1] [2] Forestry laws generally adopt management policies for public forest resources, such as multiple use and sustained yield. [3]
except as provided in subsection (d) of this section, the Secretary shall, to the extent consistent with providing for the multiple use and sustained yield of all renewable forest resources, seek to provide a supply of timber from the Tongass National Forest which (1) meets the annual market demand for timber from such forest and (2) meets the ...
The Multiple-Use Sustained-Yield Act of 1960 made it clear that the Forest Service had to manage for non-timber values, like recreation, range, watershed, wildlife and fishery purposes, but it was not until NFMA that these uses were embodied by the forest planning process. [9]
Sustainable yield is the amount of a resource that humans can harvest without over-harvesting or damaging a potentially renewable resource. [1]In more formal terms, the sustainable yield of natural capital is the ecological yield that can be extracted without reducing the base of capital itself, i.e. the surplus required to maintain ecosystem services at the same or increasing level over time. [2]
1944: The Sustained-Yield Forest Management Act was passed which encouraged the building of logging mills throughout the west. [ 5 ] 1960: The Multiple-Use Sustained-Yield Act directs national forests to be managed for their timber, range, water, recreation, and wildlife, with no use greater than another.