干旱区生态环境知识资源中心(Arid): Sources and mean transit times of intermittent streamflow in semi-arid headwater catchments

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DOI	10.1016/j.jhydrol.2021.127208
	Sources and mean transit times of intermittent streamflow in semi-arid headwater catchments
	Barua, Shovon; Cartwright, Ian; Dresel, P. Evan; Morgenstern, Uwe; McDonnell, Jeffrey J.; Daly, Edoardo
通讯作者	Barua, S (corresponding author)，Monash Univ, Sch Earth Atmosphere & Environm, Clayton, Vic 3800, Australia.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2022
卷号	604
英文摘要	Determining the sources and mean transit times (MTTs) of water that generates streamflows is important for understanding and managing headwater catchments. The sources and especially the MTTs of water that contributes to streamflow in seasonally intermittent streams are far less studied than for perennial streams. Here we use major ions, dissolved organic carbon, stable isotopes, radon and tritium to quantify the sources and MTTs of intermittent streamflows in three headwater catchments (Banool, McGill and Plantation) from a semi-arid area in southeast Australia. At the start of streamflows, the MTTs of stream water varied from 25 to 42 years in the 1.51 km(2) Banool catchment, 3 to 4 years in the 3.38 km(2) McGill catchment and 9 to 14 years in the 3.41 km(2) Plantation catchment. Winter rainfall increased the relative contribution of younger waters in all three catchments. During higher winter streamflows, the MTTs of stream water reduced to <= 5 years in the Banool catchment and <1 year in the McGill and Plantation catchments. The sources of streamflow also differed between the catchments. Regional groundwater, which close to the stream has a residence time of several hundred years, dominated in the Banool catchment, whereas younger water (residence times of up to 9 years) stored in the riparian zone was the main source in the McGill and Plantation catchments. The differences in MTTs between the catchments may reflect land-use differences, especially the presence of plantation forests in the McGill and Plantation catchments. Overall, due to being less well-connected to the regional groundwater, the MTTs of these intermittent streams are far shorter than those reported for perennial headwater streams in southeast Australia. The short MTTs indicate that these intermittent streams are vulnerable to short-term variations in rainfall.
英文关键词	Geochemical tracers Tritium Mean transit times Intermittent streamflows Headwater catchments
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000751952500001
WOS关键词	YOUNG WATER FRACTIONS ; GROUNDWATER RECHARGE ; GEOCHEMICAL TRACERS ; STABLE-ISOTOPES ; LAND-USE ; TRITIUM ; PRECIPITATION ; DISTRIBUTIONS ; RIVERS ; AGE
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376897
作者单位	[Barua, Shovon; Cartwright, Ian] Monash Univ, Sch Earth Atmosphere & Environm, Clayton, Vic 3800, Australia; [Dresel, P. Evan] Dept Jobs Precincts & Reg, Agr Victoria, Bendigo, Vic 3554, Australia; [Morgenstern, Uwe] GNS Sci, Isotope Hydrol & Water Dating Lab, Lower Hutt 5040, New Zealand; [McDonnell, Jeffrey J.] Univ Saskatchewan, Global Inst Water Secur, Saskatoon, SK S7N 3H5, Canada; [McDonnell, Jeffrey J.] Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, W Midlands, England; [Daly, Edoardo] Monash Univ, Dept Civil Engn, Clayton, Vic 3800, Australia
推荐引用方式 GB/T 7714	Barua, Shovon,Cartwright, Ian,Dresel, P. Evan,et al. Sources and mean transit times of intermittent streamflow in semi-arid headwater catchments[J],2022,604.
APA	Barua, Shovon,Cartwright, Ian,Dresel, P. Evan,Morgenstern, Uwe,McDonnell, Jeffrey J.,&Daly, Edoardo.(2022).Sources and mean transit times of intermittent streamflow in semi-arid headwater catchments.JOURNAL OF HYDROLOGY,604.
MLA	Barua, Shovon,et al."Sources and mean transit times of intermittent streamflow in semi-arid headwater catchments".JOURNAL OF HYDROLOGY 604(2022).