气候变化领域集成服务门户(CCPortal): Anthropogenic and catchment characteristic signatures in the water quality of Swiss rivers: A quantitative assessment

CCPortal

DOI	10.5194/hess-23-1885-2019
	Anthropogenic and catchment characteristic signatures in the water quality of Swiss rivers: A quantitative assessment
	Botter M.; Burlando P.; Fatichi S.
发表日期	2019
ISSN	1027-5606
起始页码	1885
结束页码	1904
卷号	23 期号:4
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.
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
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159705
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
推荐引用方式 GB/T 7714	Botter M.,Burlando P.,Fatichi S.. Anthropogenic and catchment characteristic signatures in the water quality of Swiss rivers: A quantitative assessment[J],2019,23(4).
APA	Botter M.,Burlando P.,&Fatichi S..(2019).Anthropogenic and catchment characteristic signatures in the water quality of Swiss rivers: A quantitative assessment.Hydrology and Earth System Sciences,23(4).
MLA	Botter M.,et al."Anthropogenic and catchment characteristic signatures in the water quality of Swiss rivers: A quantitative assessment".Hydrology and Earth System Sciences 23.4(2019).