DOI: 10.1016/j.foreco.2014.12.013
Scopus记录号: 2-s2.0-84922747050
论文题名: Forest change in the Driftless Area of the Midwest: From a preferred to undesirable future
作者: Knoot T.G. ; Shea M.E. ; Schulte L.A. ; Tyndall J.C. ; Nelson M.D. ; Perry C.H. ; Palik B.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 341 起始页码: 110
结束页码: 120
语种: 英语
英文关键词: Forest inventory and analysis
; Mesophication
; Oak forest
; U.S. public land survey
Scopus关键词: Land use
; Reforestation
; Surveys
; Forest inventory and analysis
; Intervention strategy
; Mesophication
; Natural regeneration
; Oak forests
; Public lands
; Resource professionals
; Spatial variations
; Forestry
; deciduous forest
; diameter
; ecoregion
; forest dynamics
; forest inventory
; regeneration
; spatial variation
; Forests
; Plants
; Quercus
; Midwest
; United States
; Acer nigrum
; Malvaceae
; Quercus
; Quercus alba
; Quercus bicolor
; Quercus ellipsoidalis
; Quercus macrocarpa
; Quercus rubra
; Quercus velutina
; Tilia americana
英文摘要: In the midwestern and eastern U.S., oaks (. Quercus spp.) have been a dominant component of forests for at least the last 10,000. years, providing vital habitat for numerous wildlife and plant species that have adapted to oak forest conditions. However, the current state of these oak systems, in which there has been a general lack of successful oak regeneration and recruitment and an increase in the relative dominance of mesophytic species, may be nearing critical thresholds. If reached, restoring oak systems through natural regeneration and other methods, such as prescribed fire, may become especially challenging if not impossible. An understanding of spatial variation in oak dominance over time can inform and potentially improve the efficacy of intervention strategies. Using Public Land Survey and Forest Inventory and Analysis (FIA) inventories, we evaluated changes in the composition of timberland across ecoregional subsections in the Driftless Area of the Midwest at three time periods (pre-settlement 1800s, 1990s, and 2000s). We identified an overall decrease in oak dominance, and particularly dominance of the white oak (. Quercus alba L., Q. macrocarpa Michx., and Q. bicolor Willd.) species group since the pre-settlement era, and an increase in other eastern soft hardwoods. Within the last 20. years, both the red oak (. Q. rubra L., Q. ellipsoidalis E.J. Hill and Q. velutina Lam.) and white oak species groups decreased in dominance, with an increase in hard maple-basswood (. A. saccharum Marsh., A. nigra L., and Tilia americana L.) species group dominance, indicating further mesophication of forests in the region. However, we found a notable decrease in hard maple-basswood relative dominance within the small diameter class across most of the regions within the last 10-20. years, with an increase in dominance of other, non-oak, species. Our findings complement qualitative evidence from interviews with natural resource professionals from the region and offer further information on the potential for forest conversion to "undesirable" forest conditions, as identified as a source of concern by some professionals. There was spatial variation in these trends, however, with some pronounced differences across adjacent state boundaries. The variation in forest change across state boundaries suggests the role of state-level socioeconomic and policy factors in affecting forest conditions, and thus the potential for a targeted and timely approach to promoting preferred pathways of change. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65539
Appears in Collections: 影响、适应和脆弱性
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作者单位: Iowa State University, Department of Natural Resource Ecology and Management, 339 Science Hall II, Ames, IA, United States; USDA Forest Service, Northern Research Station, Forest Inventory and Analysis, 1992 Folwell, St. Paul, MN, United States; USDA Forest Service, Northern Research Station, Center for Research on Ecosystem Change, 1831 Hwy 169 East, Grand Rapids, MN, United States; Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, 1630 Linden Dr., Madison, WI, United States
Recommended Citation:
Knoot T.G.,Shea M.E.,Schulte L.A.,et al. Forest change in the Driftless Area of the Midwest: From a preferred to undesirable future[J]. Forest Ecology and Management,2015-01-01,341