DOI: 10.1016/j.foreco.2013.05.051
Scopus记录号: 2-s2.0-84879738075
论文题名: Effects of clear-cutting on annual and seasonal runoff from a boreal forest catchment in eastern Finland
作者: Ide J. ; Finér L. ; Laurén A. ; Piirainen S. ; Launiainen S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 304 起始页码: 482
结束页码: 491
语种: 英语
英文关键词: CTE
; Evapotranspiration
; Harvesting
; Headwater catchment
; Peak runoff
; Snow accumulation
; TE
; Time series
Scopus关键词: Calibration equations
; CTE
; Headwater catchment
; Observation Period
; Scots pine seedlings
; Snow accumulation
; Temporal variation
; Treatment effects
; Catchments
; Evapotranspiration
; Forestry
; Harvesting
; Plants (botany)
; Tellurium
; Time series
; Water supply
; Runoff
; annual variation
; boreal forest
; clearcutting
; coniferous forest
; evapotranspiration
; forested catchment
; harvesting
; runoff
; seasonal variation
; snow accumulation
; time series
; Accumulation
; Forestry
; Harvesting
; Plants
; Runoff
; Snow
; Tellurium
; Water Supply
; Finland
英文摘要: To examine the effects of clear-cutting on annual and seasonal runoff from a boreal headwater catchment, a paired-catchment study was conducted in Norway spruce- (Picea abies (L.) Karsten) and Scots pine- (Pinus sylvestris L.) dominated forest catchments in eastern Finland. Long-term hydrological data were obtained for 5 years before and 18 years after clear-cutting, during which the clear-cut area was ploughed in the 4th year and planted with Scots pine seedlings in the 5th year. Calibration equations for annual and seasonal runoff were developed between the paired (i.e. treatment and control) catchments during the pre-treatment period and after clear-cutting, the treatment effect (TE) was calculated as the difference between the measured and predicted runoff in the treatment catchment. The annual TE was highest in the 1st year after the clear-cutting and tended to decrease with time, gradually diminishing from the 8th year after the clear-cutting. The seasonal TE had different temporal variations from the annual TE. The spring TE continued to be positive until the end of the observation period. On the other hand, the summer TE continued to be negative from the 8th year to the end of the observation period. The autumn TE was positive until the 6th year, but subsequently became negative. The winter TE was almost zero throughout the observation period. The decreasing trend in annual TE therefore resulted from the fact that the persistent positive spring TEs were offset by the negative summer and autumn TEs from the 8th year. These results demonstrate that seasonal TEs, i.e. spring and summer TEs, more clearly represent the persistence of changes in runoff after clear-cutting than does the annual TE. We thus conclude that the effects of clear-cutting on runoff continued for at least 18. years in our catchment. Our study emphasizes the importance of investigating seasonal runoff together with annual runoff to enable a better understanding of clear-cutting effects on runoff from forest catchments. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66514
Appears in Collections: 影响、适应和脆弱性
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作者单位: Joensuu Research Unit, Finnish Forest Research Institute, P.O. Box 68, FI-80101 Joensuu, Finland
Recommended Citation:
Ide J.,Finér L.,Laurén A.,et al. Effects of clear-cutting on annual and seasonal runoff from a boreal forest catchment in eastern Finland[J]. Forest Ecology and Management,2013-01-01,304