干旱区生态环境知识资源中心(Arid): Water quality impacts of urban and non-urban arid-land runoff on the Rio Grande

Arid

DOI	10.1016/j.scitotenv.2020.138443
	Water quality impacts of urban and non-urban arid-land runoff on the Rio Grande
	Regier, Peter J.; Gonzalez-Pinzon, Ricardo; Van Horn, David J.; Reale, Justin K.; Nichols, Justin; Khandewal, Aashish
通讯作者	Regier, PJ
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	729
英文摘要	Urban surface runoff from storms impacts the water quality dynamics of downstream ecosystems. While these effects are well-documented in mesic regions, they are not well constrained for arid watersheds, which sustain longer dry periods, receive intense but short-lived storms, and where stormwater drainage networks are generally isolated from sewage systems. We used a network of high-frequency in situ water quality sensors located along the Middle Rio Grande to determine surface runoff origins during storms and track rapid changes in physical, chemical, and biological components of water quality. Specific conductivity (SpCond) patterns were a reliable indicator of source, distinguishing between runoff events originating primarily in urban (SpCond sags) or non-urban (SpCond spikes) catchments. Urban events were characterized by high fluorescent dissolved organic matter (fDOM), low dissolved oxygen (including short-lived hypoxia <2 mg/L), smaller increases in turbidity and varied pH response. In contrast, non-urban events showed large turbidity spikes, smaller dissolved oxygen sags, and consistent pH sags. Principal component analysis distinguished urban and non-urban events by dividing physical and biogeochemical water quality parameters, and modeling of DO along the same reach demonstrated consistently higher oxygen demand for an urban event compared to a non-urban event. Based on our analysis, urban runoff poses more potential ecological harm, while non-urban runoff poses a larger problem for drinking water treatment. The comparison of our results to other reports of urban stormwater quality suggest that water quality responses to storm events in urban landscapes are consistent across a range of regional climates. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	High frequency monitoring Urban and non-urban runoff Hypoxia River ecology Arid regions
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000537441700006
WOS关键词	SUSPENDED SEDIMENT ; STORMWATER RUNOFF ; ORGANIC-CARBON ; IN-SITU ; URBANIZATION ; RIVER ; TURBIDITY ; FLUORESCENCE ; CLIMATE ; TEMPERATURE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324603
作者单位	[Regier, Peter J.; Gonzalez-Pinzon, Ricardo; Nichols, Justin; Khandewal, Aashish] Univ New Mexico, Dept Civil Construct & Environm Engn, Albuquerque, NM 87131 USA; [Van Horn, David J.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA; [Reale, Justin K.] US Army Corps Engineers, Albuquerque, NM 87109 USA
推荐引用方式 GB/T 7714	Regier, Peter J.,Gonzalez-Pinzon, Ricardo,Van Horn, David J.,et al. Water quality impacts of urban and non-urban arid-land runoff on the Rio Grande[J],2020,729.
APA	Regier, Peter J.,Gonzalez-Pinzon, Ricardo,Van Horn, David J.,Reale, Justin K.,Nichols, Justin,&Khandewal, Aashish.(2020).Water quality impacts of urban and non-urban arid-land runoff on the Rio Grande.SCIENCE OF THE TOTAL ENVIRONMENT,729.
MLA	Regier, Peter J.,et al."Water quality impacts of urban and non-urban arid-land runoff on the Rio Grande".SCIENCE OF THE TOTAL ENVIRONMENT 729(2020).