气候变化领域集成服务门户(CCPortal): Identifying sources of phosphorus in precipitation using phosphate oxygen isotope in a human and monsoon Co-affected embayment

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DOI	10.1016/j.atmosenv.2020.118008
	Identifying sources of phosphorus in precipitation using phosphate oxygen isotope in a human and monsoon Co-affected embayment
	Wu Y.; Huang X.; Jiang Z.; Liu S.
发表日期	2021
ISSN	1352-2310
卷号	244
英文摘要	The phosphorus in precipitation provides a significant fraction of the bioavailable phosphorus to fresh and marine waters. To identify the possible sources and interpret the atmospheric deposition processes of phosphorus, we measured the phosphate oxygen isotopes (δ18OP) in the precipitation monthly from October 2015 to March 2017 in Daya Bay, South China Sea. The isotopic results show that the δ18OP values in the dry season (+19.60‰ to +25.80‰, +23.10‰ average) were significantly higher than those in the wet season (+12.52‰ to +20.11‰, +16.73‰ average), indicating a variable contribution from different phosphorus sources to the precipitation between seasons. The δ18OP value was primarily influenced by the phosphorus concentrations, rainfall, and air temperature. The exchange of phosphate molecules among phosphorus pools caused isotope dilution (wet season) or enrichment effects (dry season) during the seasonal shifts. The δ18OP value of the precipitation and the local end-members indicate that coal combustion (39% ± 16%), biomass burning (22% ± 18%), and soil (17% ± 13%) sources dominate in the dry season, whereas marine sources (28% ± 19%) and coal combustion (24% ± 12%) account for the highest proportion in the wet season using a MixSIAR model. The atmospheric wet deposition flux of phosphorus in Daya Bay was 379.0 μmol m−2·yr−1. The wet deposition of phosphorus exhibits a significant seasonal trend with higher deposition fluxes in the wet season than in the dry season as a result of higher rainfall and source shifts (local sources to marine source) between seasons. © 2020 Elsevier Ltd
关键词	Deposition flux Phosphorus Precipitation Sources δ18OP
语种	英语
scopus关键词	Deposition; Drought; Isotopes; Meteorological problems; Oxygen; Rain; Atmospheric deposition process; Atmospheric wet deposition; Bioavailable phosphorus; Deposition fluxes; Enrichment effects; Isotope dilutions; Phosphorus concentration; Phosphorus sources; Coal combustion; coal; oxygen 18; phosphate; phosphorus; rain; sea water; atmospheric deposition; bioavailability; biomass burning; oxygen isotope; phosphate; phosphorus; precipitation (chemistry); source identification; air temperature; Article; atmospheric deposition; bay; biomass; combustion; concentration (parameter); controlled study; dry season; fire; human; isotope dilution assay; molecule; monsoon climate; precipitation; priority journal; rainy season; seasonal variation; trend study; wet deposition; China; Daya Bay; Guangdong; Pacific Ocean; South China Sea
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248799
作者单位	Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 510301, China
推荐引用方式 GB/T 7714	Wu Y.,Huang X.,Jiang Z.,et al. Identifying sources of phosphorus in precipitation using phosphate oxygen isotope in a human and monsoon Co-affected embayment[J],2021,244.
APA	Wu Y.,Huang X.,Jiang Z.,&Liu S..(2021).Identifying sources of phosphorus in precipitation using phosphate oxygen isotope in a human and monsoon Co-affected embayment.ATMOSPHERIC ENVIRONMENT,244.
MLA	Wu Y.,et al."Identifying sources of phosphorus in precipitation using phosphate oxygen isotope in a human and monsoon Co-affected embayment".ATMOSPHERIC ENVIRONMENT 244(2021).