Skip to Main Content
Optimizing any-aged management of mixed-species stands: II. effects of decision criteriaAuthor(s): Robert G. Haight; Robert A. Monserud
Source: Forest Science 36(1):125-144
Publication Series: Scientific Journal (JRNL)
Station: North Central Research Station
PDF: View PDF (846.98 KB)
DescriptionThe effects of maximum present value and maximum volume objectives on the efficiencies of alternative silvicultural systems are determined by solving any-aged management problems for mixed-conifer stands in the Northern Rocky Mountains. Any-aged management problems are formulated with periodic planting and harvesting controls and without constraints on the stand age or size structure over time. Optimization is performed with the Stand Prognosis Model, a single-tree simulator that has been calibrated for many forest types in the western United States. With a maximum present value objective, 1987 stumpage prices, and no logging damage, steady-state, uneven-aged management using selection cuts is the target silvicultural system for a range of stand types. Optimal transition regimes for understocked stands include clearcutting and planting western white pine (Pinus monticola Dougl. ex D. Don), a high-value, fastgrowing species. With a maximum merchantable volume objective, two types of management emerge as optimal: even-aged plantation management and an uneven-aged shelterwood system are both capable of producing the same high level of yield indefinitely. Both types of management rely on a series of thinnings to grow the most vigorous crop trees into the largest size classes. In addition, the shelterwood system ensures that adequate natural regeneration is established when the crop trees are harvested. Because the uneven-aged shelterwood system produces steady-state yields that are as high or higher than plantation management, these results call into question the widely held view that even-aged plantation management maximizes total merchantable volume production.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationHaight, Robert G.; Monserud, Robert A. 1990. Optimizing any-aged management of mixed-species stands: II. effects of decision criteria. Forest Science 36(1):125-144
KeywordsOptimal harvesting, even-aged management, uneven-aged management, single-tree simulator, Stand Prognosis Model
- Uneven-aged silviculture in cedar-hemlock-grand fir ecosystems of the northern Rocky Mountains
- Cleaning to favor western white pine - its effects upon composition, growth, and potential values
- Managing western white pine plantations for multiple resource objectives
XML: View XML