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CO: SSSJD4 <br /> YR: 1992 <br /> PD: illus. , 1 table <br /> LA: English <br /> DE: bromide-ion; chemical-analysis; fluorobenzoate-; <br /> geochemistry-; ion-chromatography; methods-; monitoring-; soils-; <br /> solution-transport; tracers-; unsaturated-zone; water- <br /> DT: Analytic; Serial <br /> NT: Montana Agricultural Experiment Station Journal paper No. <br /> J-2833 . <br /> CC: 02-Geochemistry <br /> SB: B; Bibliography and Index of Geology (1969-present) <br /> IS: 0361-5995 <br /> GEOREF Disc 3 <br /> 43 of 60 <br /> AN: 93-13481 <br /> TI: Salinity trends in the wheatbelt of Western Australia; <br /> results of water and salt balance studies from Cuballing <br /> Catchment. <br /> AU: Salama-R-B; Farrington-P; Bartle-G-A; Watson-G-D <br /> OS: CSIRO, Division of Water Resources, Wembley, West. Aust. , <br /> Australia <br /> SO: Journal-of-Hydrology. 145. (1-2) . p. 41-63 . <br /> 35 Refs. <br /> CO: JHYDA7 <br /> YR: 1993 <br /> PD: illus. , 1 table, sketch maps <br /> LA: English <br /> AB: A study of water and salt balances within a first-order <br /> catchment in the Western Australian wheatbelt has shown that the <br /> salt load in the main surface drainage comes largely from <br /> groundwater discharging upstream from the basement highs and <br /> dykes that extend across the surface drainage and conductive <br /> channels within the regolith. Although salt fall from rainfall is <br /> about 2 . 0 g m(-2) year(-1) (Cl (-) ) , the stream load ranges from <br /> 180 to 850 g m(-2) year(-1) with an out/input ratio of 100-425. <br /> Salt storage in the catchment varies from 900-4000 g m(-2) in the <br /> top 3 m, to 27 000-71 000 g m(-2) in the 3-15 m depth range and <br /> 5000-21 000 g m(-2) below 15 m. Groundwater discharge calculated <br /> using Br and C1 as tracers for the groundwater component <br /> fluctuates between 20 and 40% of streamflow. Stream salinity <br /> during the last 3 years was below the long-term average. This is <br /> attributed to a reduction in groundwater discharge caused by low <br /> rainfall during this period. The downward displacement and <br /> leaching of salt stored in the regolith indicates that if <br /> groundwater levels continue to rise, the quantity and salinity of <br /> groundwater discharge will continue to increase causing further <br /> rises in stream salinity. <br /> DE: agriculture-; Australasia-; Australia-; bromide-ion; <br /> bromine-; chloride-ion; chlorine-; Cuballing-Australia; <br /> discharge-; geochemistry-; ground-water; halogens-; <br /> hydrochemistry-; hydrology-; land-use; rainfall-; recharge-; <br /> rivers-and-streams; salinity-; salt-balance; surface-water; <br /> HIM HYDRO-SEARCHAC. A Tetra Tech Company <br />