DOI: 10.1016/j.foreco.2016.08.021
Scopus记录号: 2-s2.0-84982162408
论文题名: A catchment-scale assessment of stream temperature response to contemporary forest harvesting in the Oregon Coast Range
作者: Bladon K.D. ; Cook N.A. ; Light J.T. ; Segura C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 379 起始页码: 153
结束页码: 164
语种: 英语
英文关键词: Forest management
; Headwater stream
; Pacific Northwest
; Riparian buffers
; Thermal regime
; Water temperature
Scopus关键词: Catchments
; Forestry
; Harvesting
; Needles
; Runoff
; Temperature
; Vegetation
; Watersheds
; Headwater stream
; Pacific Northwest
; Riparian buffers
; Thermal regimes
; Water temperatures
; Rivers
; catchment
; forest canopy
; forest management
; forestry practice
; harvesting
; headwater
; riparian vegetation
; solar radiation
; streamwater
; temperature effect
; thermal regime
; water temperature
; Oregon
; Pacific Ocean
; Pacific Ocean (Northwest)
; United States
英文摘要: Historical forest harvesting practices, where the riparian canopy was removed, generally increased energy loading to the stream and produced higher stream temperatures. As such, contemporary forest management practices require maintenance of streamside vegetation as riparian management areas, with an important function of providing shade and minimizing solar radiation loading to streams to mitigate stream water temperature changes. The Alsea Watershed Study Revisited in the Oregon Coast Range provided a unique opportunity to investigate and compare the stream temperature responses to contemporary forest harvesting practices (i.e., maintenance of riparian vegetation) with the impacts from historical (1960s) harvesting practices (i.e., no riparian vegetation). Here we present an analysis of 6 years (3 years pre-harvest and 3 years post-harvest) of summer stream temperature data from a reference (Flynn Creek) and a harvested catchment (Needle Branch). There was no evidence that the (a) 7-day moving mean of daily maximum (T7DAYMAX) stream temperature, (b) mean daily stream temperature, or (c) diel stream temperature changed in the study stream reaches following contemporary forest harvesting practices. The only parameter of interest that changed after forest harvesting was the T7DAYMAX when analyses were constrained to the Oregon regulatory period of July 15 to August 15 and all sites in each catchment were grouped together—in this case stream temperature increased 0.6 ± 0.2 °C (p = 0.002). However, over the entire post-harvest study period, the warmest maximum daily stream temperature observed in Needle Branch was 14.7 °C—in the original Alsea Watershed Study, maximum daily stream temperatures rose to 21.7 °C (1966) and 29.4 °C (1967) in the first two post-harvest years, providing evidence that current harvesting practices have improved protection for stream water temperatures. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64742
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, Corvallis, OR, United States; Plum Creek Timber Company, Toledo, OR, United States
Recommended Citation:
Bladon K.D.,Cook N.A.,Light J.T.,et al. A catchment-scale assessment of stream temperature response to contemporary forest harvesting in the Oregon Coast Range[J]. Forest Ecology and Management,2016-01-01,379