DOI: 10.1016/j.foreco.2016.08.019
Scopus记录号: 2-s2.0-85005922680
论文题名: Managing Appalachian hardwood stands using four management practices: 60-year results
作者: Schuler T.M. ; Thomas-Van Gundy M. ; Brown J.P. ; Wiedenbeck J.K.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 387 起始页码: 3
结束页码: 11
语种: 英语
英文关键词: Cutting practice level
; Fernow
; NPV
; Productivity
; Tree quality
; Uneven-age management
Scopus关键词: Earnings
; Hardwoods
; Harvesting
; Population distribution
; Productivity
; Sawing
; Age management
; Cutting practices
; Fernow
; Fernow experimental forests
; Internal rate of return
; Management interventions
; Tree quality
; Uneven-aged management
; Forestry
; clearcutting
; community composition
; forest management
; productivity
; profitability
; shade tolerance
; stand structure
; timber harvesting
; wood quality
; Fernow Experimental Forest
; United States
; West Virginia
; Nucleopolyhedrovirus
英文摘要: A long-term forest management case study on the Fernow Experimental Forest in West Virginia referred to as the Cutting Practice Level study is evaluated after 60 years. Treatments include a commercial clearcut (one time application), a 39 cm diameter-limit (applied 4 times), uneven-aged management using two variations of single-tree selection (applied 7 and 8 times, respectively), and an unmanaged reference area. We examine productivity, species composition and diversity, structure, tree quality, and revenues generated related to each treatment since establishment. The diameter-limit treatment resulted in greatest average periodic annual increment (PAI) of sawtimber volume of 3.1 m3 ha−1 yr−1 while the unmanaged reference area resulted in the least of 2.2 m3 ha−1 yr−1 (based on the difference in standing volume from 1956 to 2008). All types of partial harvesting resulted in greater sawtimber productivity than either the commercial clearcut or the reference area. Post-harvest tree quality, as measured by proportion of grade 1 butt logs, has improved from 1988 to 2008 for all but the diameter-limit treatment, which is similar to conditions in 1968. In 2008, the proportion of grade 1 trees in the residual stand ranged from a high of 0.22 for single-tree selection to 0.15 for diameter-limit harvesting. Species composition is becoming less diverse and more dominated by shade-tolerant species in all treatment groups but the change has been the greatest in the two single-tree selection treatments. Initially, size-class distributions were somewhat unimodal and reflective of even-aged stands with shade tolerant species persisting in the understory. In 2008, the single-tree selection treatments were both characterized by a reverse-J size class distribution and it appears this structure can be maintained due to recruitment of shade-tolerant species in the smaller size classes with concomitant reductions in species diversity. The net present value for each treatment in 2008, the time of the last management intervention, ranged from $20,000 ha−1 for reference area to almost $34,000 ha−1 for the single-tree selection treatment that included management of pole-sized trees based on all revenue and the value of standing timber using an internal rate of return of 4%. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64516
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Northern Research Station, US Forest Service, 459 Nursery Bottom Road, Parsons, WV, United States; Northern Research Station, US Forest Service, 241 Mercers Springs Road, Princeton, WV, United States
Recommended Citation:
Schuler T.M.,Thomas-Van Gundy M.,Brown J.P.,et al. Managing Appalachian hardwood stands using four management practices: 60-year results[J]. Forest Ecology and Management,2017-01-01,387