DOI: 10.5194/hess-23-1885-2019
论文题名: Anthropogenic and catchment characteristic signatures in the water quality of Swiss rivers: A quantitative assessment
作者: Botter M. ; Burlando P. ; Fatichi S.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2019
卷: 23, 期: 4 起始页码: 1885
结束页码: 1904
语种: 英语
Scopus关键词: Biogeochemistry
; Catchments
; Organic carbon
; Runoff
; Sampling
; Topography
; Water quality
; Anthropogenic factors
; Anthropogenic impacts
; Biogeochemical response
; Catchment characteristics
; Empirical dependences
; Quantitative assessments
; Spatial heterogeneity
; Water quality sampling
; Rivers
; anthropogenic effect
; catchment
; concentration (composition)
; discharge
; quantitative analysis
; river discharge
; river water
; seasonality
; solute
; streamwater
; water quality
; Switzerland
英文摘要: The hydrological and biogeochemical response of rivers carries information about solute sources, pathways, and transformations in the catchment. We investigate longterm water quality data of 11 Swiss catchments with the objective to discern the influence of major catchment characteristics and anthropic activities on delivery of solutes in stream water. Magnitude, trends, and seasonality of water quality samplings of different solutes are evaluated and compared across catchments. Subsequently, the empirical dependence between concentration and discharge is used to classify the solute behaviors. While the anthropogenic impacts are clearly detectable in the concentration of certain solutes (i.e., Na+, Cl-, NO3, DRP), the influence of single catchment characteristics such as geology (e.g., on Ca2+ and H4SiO4), topography (e.g., on DOC, TOC, and TP), and size (e.g., on DOC and TOC) is only sometimes visible, which is also because of the limited sample size and the spatial heterogeneity within catchments. Solute variability in time is generally smaller than discharge variability and the most significant trends in time are due to temporal variations of anthropogenic rather than natural forcing. The majority of solutes show dilution with increasing discharge, especially geogenic species, while sedimentbonded solutes (e.g., total phosphorous and organic carbon species) show higher concentrations with increasing discharge. Both natural and anthropogenic factors affect the biogeochemical response of streams, and, while the majority of solutes show identifiable behaviors in individual catchments, only a minority of behaviors can be generalized across the 11 catchments that exhibit different natural, climatic, and anthropogenic features. © Author(s) 2019. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162995
Appears in Collections: 气候变化与战略
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作者单位: Botter, M., Institute of Environmental Engineering, ETH Zurich, Switzerland, Stefano Franscini-Platz 5, Zurich, 8093, Switzerland; Burlando, P., Institute of Environmental Engineering, ETH Zurich, Switzerland, Stefano Franscini-Platz 5, Zurich, 8093, Switzerland; Fatichi, S., Institute of Environmental Engineering, ETH Zurich, Switzerland, Stefano Franscini-Platz 5, Zurich, 8093, Switzerland
Recommended Citation:
Botter M.,Burlando P.,Fatichi S.. Anthropogenic and catchment characteristic signatures in the water quality of Swiss rivers: A quantitative assessment[J]. Hydrology and Earth System Sciences,2019-01-01,23(4)