气候变化领域集成服务门户(CCPortal): Tracing the sources of sediment and associated particulate nitrogen from different land uses in the Johnstone River catchment; Wet Tropics; north-eastern Australia

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DOI	10.1016/j.marpolbul.2020.111344
	Tracing the sources of sediment and associated particulate nitrogen from different land uses in the Johnstone River catchment; Wet Tropics; north-eastern Australia
	Bahadori M.; Chen C.; Lewis S.; Rashti M.R.; Cook F.; Parnell A.; Esfandbod M.; Stevens T.
发表日期	2020
ISSN	0025326X
卷号	157
英文摘要	While the ecosystem of the Great Barrier Reef (GBR), north-eastern Australia, is being threatened by the elevated levels of sediments and nutrients discharged from adjacent coastal river systems, the source of these detrimental pollutants are not well understood. Here we used a combined isotopic (δ13C, δ15N) and geochemical (Zn, Pt and S) signatures and stable isotope analysis in R (SIAR) mixing model to estimate the contribution of different land uses to the sediment and associated particulate nitrogen delivered to the Johnstone River. Results showed that rainforest was the largest contributor of suspended and bed sediments in the river estuary (both 33.1%), followed by banana (26.7%, 20.4%), sugarcane (21.5%, 21.4%) and grazing (18.7%, 25.1%). However, bananas and sugarcane land uses had the highest contribution to sediments delivered to the coast per unit of area. This will help land managers to prioritise on-ground activities to improve water quality in the GBR lagoon. © 2020
英文关键词	Fingerprinting; Geochemical signatures; Mixing models; Particulate nitrogen; Stable isotope
语种	英语
scopus关键词	Catchments; Fruits; Isotopes; Nitrogen; Rivers; Suspended sediments; Tropics; Water quality; Bed sediments; Coastal rivers; Eastern Australia; Elevated level; Great Barrier Reef; Johnstone river catchments; Land managers; Stable-isotope analysis; Land use; nitrogen; platinum; sulfur; zinc; nitrogen; phosphorus; catchment; coastal lagoon; estuarine pollution; fluvial deposit; land use; nitrogen; nutrient enrichment; particulate matter; point source; pollutant source; pollutant transport; pollution monitoring; water quality; Article; Australia; banana; estuary; geochemistry; grazing; isotope analysis; lagoon; land use; nonhuman; rain forest; river basin; sediment; sugarcane; tropics; water quality; ecosystem; environmental monitoring; river; sediment; Australia; Johnstone River; Queensland; Australia; Ecosystem; Environmental Monitoring; Geologic Sediments; Nitrogen; Phosphorus; Rivers
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148826
作者单位	Australian Rivers Institute, Griffith University, Brisbane, QLD 4111, Australia; School of Environment and Science, Griffith University, Brisbane, Queensland 4111, Australia; Catchment to Reef Research Group, Centre for Tropical Water and Aquatic Ecosystem Research, James Cook University, Townsville, QLD 4811, Australia; Freeman Cook & Associates Pty Ltd, Australia; Hamilton Institute, Maynooth University, Ireland
推荐引用方式 GB/T 7714	Bahadori M.,Chen C.,Lewis S.,et al. Tracing the sources of sediment and associated particulate nitrogen from different land uses in the Johnstone River catchment; Wet Tropics; north-eastern Australia[J],2020,157.
APA	Bahadori M..,Chen C..,Lewis S..,Rashti M.R..,Cook F..,...&Stevens T..(2020).Tracing the sources of sediment and associated particulate nitrogen from different land uses in the Johnstone River catchment; Wet Tropics; north-eastern Australia.Marine Pollution Bulletin,157.
MLA	Bahadori M.,et al."Tracing the sources of sediment and associated particulate nitrogen from different land uses in the Johnstone River catchment; Wet Tropics; north-eastern Australia".Marine Pollution Bulletin 157(2020).