DOI: 10.1007/s10533-017-0300-6
Scopus记录号: 2-s2.0-85011305665
论文题名: Do storm synoptic patterns affect biogeochemical fluxes from temperate deciduous forest canopies?
作者: Siegert C.M. ; Levia D.F. ; Leathers D.J. ; Van Stan J.T. ; Mitchell M.J.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 132, 期: 3 起始页码: 273
结束页码: 292
语种: 英语
英文关键词: Forest biogeochemistry
; Forest hydrology
; Stemflow
; Synoptic climatology
; Throughfall
Scopus关键词: atmospheric deposition
; bioclimatology
; biogeochemistry
; canopy exchange
; deciduous forest
; ecohydrology
; flux measurement
; forest canopy
; forest ecosystem
; leaching
; nutrient cycling
; stemflow
; storm
; synoptic meteorology
; temperate forest
; throughfall
英文摘要: The volumetric quantity and biogeochemical quality of throughfall and stemflow in forested ecosystems are influenced by biological characteristics as well environmental and storm meteorological conditions. Previous attempts at connecting forest water and nutrient cycles to storm characteristics have focused on individual meteorological variables, but we propose a unified approach by examining the storm system in its entirety. In this study, we use methods from synoptic climatology to distinguish sub-canopy biogeochemical fluxes between storm events to understand the response of forest ecosystems to daily weather patterns. For solute inputs tied to atmospheric deposition (NH4 +, NO3 −, SO4 2−, Na+, Cl−), stagnant air masses resulted in high inputs in rainfall (273.42, 81.81, 52.30, 156.99, 128.70 μmol L−1), throughfall (355.05, 130.66, 83.24, 239.55, 261.32 μmol L−1), and stemflow (338.34, 182.75, 153.74, 125.75, 272.88 μmol L−1). For inputs tied to canopy exchange (DOC, K+, Ca2+, Mg2+), a clear distinction was observed between throughfall and stemflow pathways. The largest throughfall concentrations were in the Great Lakes Low (1794.80, 352.96, 72.75, 74.37 μmol L−1) while the largest stemflow concentrations were in the Weak Upper Trough (3681.78, 497.34, 82.36, 72.46 μmol L−1). Stemflow leaching is likely derived from a larger reservoir of leachable cations in the tree canopy than throughfall, with stemflow fluxes maximized during synoptic types with greater rainfall amounts and throughfall fluxes diluted. For flux-based enrichment ratios, water volume, storm magnitude, antecedent dry period, and seasonality were important factors, further illustrating the influence of synoptic characteristics on wash-off, leaching and, ultimately, dilution processes within the canopy. © 2017, Springer International Publishing Switzerland. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83298
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Department of Forestry, Forest and Wildlife Research Center, Mississippi State University, Mississippi State, MS, United States; Department of Geography, University of Delaware, Newark, DE, United States; Department of Plant and Soil Sciences, University of Delaware, Newark, DE, United States; Department of Geology and Geography, Georgia Southern University, Statesboro, GA, United States; Department of Environmental and Forest Biology, College of Environmental Science and Forestry, State University of New York, Syracuse, NY, United States
Recommended Citation:
Siegert C.M.,Levia D.F.,Leathers D.J.,et al. Do storm synoptic patterns affect biogeochemical fluxes from temperate deciduous forest canopies?[J]. Biogeochemistry,2017-01-01,132(3)