DOI: 10.1016/j.foreco.2016.09.026
Scopus记录号: 2-s2.0-84989336860
论文题名: Stand dynamics of an oak woodland forest and effects of a restoration treatment on forest health
作者: Clark S.L. ; Schweitzer C.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 381 起始页码: 258
结束页码: 267
语种: 英语
英文关键词: Cumberland Plateau
; Forest restoration
; Oak woodland
; Silviculture
; Stand dynamics
; Tree-ring growth
Scopus关键词: Biodiversity
; Conservation
; Drought
; Dynamics
; Harvesting
; Reforestation
; Restoration
; Cumberland Plateau
; Forest restoration
; Oak woodland
; Silviculture
; Stand dynamics
; Tree rings
; Forestry
; Quercus
; Quercus alba
; Quercus montana
; Quercus prinus
英文摘要: Woodland restoration has been conducted in many countries, primarily in Mediterranean regions, but has only recently been attempted on publically and privately owned lands in the eastern United States. We reconstructed historical stand dynamics and tested the immediate effects of an oak (Quercus) woodland restoration treatment on forest health, inferred from tree-ring widths (TRW). The stands were upland white oak (Q. alba) and chestnut oak (Q. prinus) dominated and were located on the Cumberland Plateau of eastern Kentucky, USA. The stands regenerated primarily under a severe disturbance regime concurrent with peak industrial logging approximately 100 years ago. A relatively high percentage of trees (38 percent) recruited under large canopy gaps or clearings, indicative of a severe disturbance; however, gap-phase dynamics was also an important process in oak recruitment to the canopy. Primarily small (<31 cm DBH) and young (<110 years old) trees were removed during the restoration treatment, and mean DBH of residual trees was 13 cm larger than harvested trees. Residual trees were 22 years older than harvested trees, but this difference was not significant. The largest and oldest trees represented important legacy trees that could provide desirable forest biodiversity attributes. Residual trees had larger TRWs than harvested trees, beginning in the 1930s, and these differences increased over time. Residual trees also had larger TRW during two recent drought events (1986 and 1999), but recovery following drought was similar between residual and harvested trees. Managers can use well established silvicultural techniques to obtain desired stand structural conditions, while selecting healthy trees that have better response to stress factors such as drought. The oak woodland restoration treatment may help to maintain residual overstory trees until oak regeneration can be recruited to provide sustainability towards the next generation. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64668
Appears in Collections: 影响、适应和脆弱性
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作者单位: USDA Forest Service, Southern Research Station, 2431 Joe Johnson Drive, Knoxville, TN, United States; USDA Forest Service, Southern Research Station, Huntsville, AL, United States
Recommended Citation:
Clark S.L.,Schweitzer C.J.. Stand dynamics of an oak woodland forest and effects of a restoration treatment on forest health[J]. Forest Ecology and Management,2016-01-01,381