DOI: 10.1016/j.foreco.2013.09.009
Scopus记录号: 2-s2.0-84888135098
论文题名: Effect of contemporary forest harvesting practices on headwater stream temperatures: Initial response of the Hinkle Creek catchment, Pacific Northwest, USA
作者: Kibler K.M. ; Skaugset A. ; Ganio L.M. ; Huso M.M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 310 起始页码: 680
结束页码: 691
语种: 英语
英文关键词: Canopy closure
; Cumulative effects
; Forest management
; Headwater streams
; Impact assessment
; Stream temperature
Scopus关键词: Canopy closures
; Cumulative effects
; Headwater stream
; Impact assessments
; Stream temperatures
; Catchments
; Ecosystems
; Forestry
; Watersheds
; Harvesting
; adaptation
; canopy
; environmental impact assessment
; harvesting
; physiological response
; prediction
; stream
; temperature effect
; Ecosystems
; Forest Management
; Forestry
; Harvesting
; Rivers
; Temperature
; Water Sheds
; Pacific Coast [North America]
; Pacific Coast [United States]
; United States
英文摘要: We investigated the effect of contemporary forest harvesting practices on warm-season thermal regimes of headwater streams using a Before-After-Control-Intervention (BACI) design within a nested, paired watershed study. We applied harvesting treatments to four headwater tributaries of Hinkle Creek, designed in accordance with the Oregon Forest Practices Act. Therefore, fixed-width buffer strips containing overstory merchantable trees were not left adjacent to the four non-fish-bearing streams. The summer following harvesting, we observed a variable temperature response across the four harvested streams. Mean maximum daily stream temperatures ranged from 1.5. °C cooler to 1.0. °C warmer relative to pre-harvest years. We also observed significantly lower minimum and mean daily stream temperatures, and recorded particularly low temperatures in treatment streams on days that minimum stream temperatures in reference streams were high. At the watershed scale, we did not observe cumulative stream temperature effects related to harvesting 14% of the watershed area in multiple, spatially-distributed harvest units across four headwater catchments. At the watershed outlet, we observed no change to maximum, mean, or minimum daily stream temperatures. We attribute the lack of consistent temperature increases in headwater streams to shading provided by a layer of logging slash that deposited over the streams during harvesting, and to increased summer baseflows. Comparisons of canopy cover before and after harvesting indicate little change in canopy cover when logging slash is considered, indicating that logging slash affected energy balances within the streams. However, other ecosystem-level effects of logging slash in forest streams are difficult to predict. In order to devise optimum practices related to in-stream slash management, forest scientists and policymakers should continue to study and consider the potential impacts of logging slash to stream ecosystems. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66254
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest Engineering, Resources and Management, Oregon State University, 270 Peavy Hall, Corvallis, OR 97331, United States; Department of Forest Ecosystems and Society, Oregon State University, 321 Richardson Hall, Corvallis, OR 97331, United States
Recommended Citation:
Kibler K.M.,Skaugset A.,Ganio L.M.,et al. Effect of contemporary forest harvesting practices on headwater stream temperatures: Initial response of the Hinkle Creek catchment, Pacific Northwest, USA[J]. Forest Ecology and Management,2013-01-01,310