Contribution of nitrogen sources to streams in mixed-use watershed varies seasonally in a temperate region

doi:10.1007/s11356-021-16930-8

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	Contribution of nitrogen sources to streams in mixed-use watershed varies seasonally in a temperate region
	Lin, Zuhong 2; Liu, Junchi 1; Xiao, Yong 2; Yu, Chaojie 2; Zhang, Jinlan 2; Zhang, Tingting 2
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2021-11-04
页码	13
关键词	Nitrate isotope Land-use Source apportionment SIAR Beijing-Tianjin-Hebei region
ISSN号	0944-1344
DOI	10.1007/s11356-021-16930-8
通讯作者	Xiao, Yong(xiaoyong@mail.buct.edu.cn) ; Zhang, Tingting(zhangtt@mail.buct.edu.cn)
英文摘要	The Beiyun river flows through a hot spot region of Beijing-Tianjin-Hebei in China that serves a majority of occupants. However, the region experiences severe nitrate pollution, posing a threat to human health due to inadequate self-purification capacity. In that context, there is an urgent need to assess nitrate levels in this region. Herein, we used delta N-15-NO3, delta O-18-NO3 isotopes analysis, and stable isotope analysis model to evaluate the nitrate source apportionment in the Beiyun river. A meta-analysis was then used to compare the potential similarity of nitrate sources among the Beiyun riverine watershed and other watersheds. Results of nitrate source apportionment revealed that nitrate originated from the manure and sewage (contribution rate: 89.6%), soil nitrogen (5.9%), and nitrogen fertilizer (3.9%) in the wet season. While in the dry season, nitrate mainly originated from manure and sewage (91.6%). Furthermore, different land-use types exhibited distinct nitrate compositions. Nitrate in urban and suburban areas mostly was traced from manure and sewage (90.5% and 78.8%, respectively). Notably, the different nitrate contribution in the rural-urban fringe and plant-covered areas were manure and sewage (44.3% and 32.8%), soil nitrogen (26.9% and 35.7%), nitrogen fertilizer (23.5% and 29.4%), and atmospheric deposition (5.3% and 2.0%). Through a meta-analysis, we found nitrogen fertilizer, soil nitrogen, and manure and sewage as the main nitrate sources in the Beiyun riverine watershed or the other similar complexed watersheds in the temperate regions. Thus, this study provides a scientific basis for nitrate source apportionment and nitrate pollution preventive management in watersheds with complexed land-use types in temperate regions.
资助项目	Major Science and Technology Program for Water Pollution Control and Treatment[2018ZX07111003] ; National Natural Science Foundation of China[41977142]
WOS关键词	ISOTOPE MIXING MODEL ; NITRATE SOURCES ; SOURCE APPORTIONMENT ; URBAN RIVER ; FRESH-WATER ; CHINA ; BASIN ; IDENTIFICATION ; DELTA-N-15 ; TRANSPORT
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000714527500004
资助机构	Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/19064]
专题	古脊椎动物与古人类研究所_图书馆1
通讯作者	Xiao, Yong; Zhang, Tingting
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Beijing Univ Chem Technol, Res Ctr Resource & Environm, Dept Environm Sci & Engn, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Lin, Zuhong,Liu, Junchi,Xiao, Yong,et al. Contribution of nitrogen sources to streams in mixed-use watershed varies seasonally in a temperate region[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021:13.
APA	Lin, Zuhong,Liu, Junchi,Xiao, Yong,Yu, Chaojie,Zhang, Jinlan,&Zhang, Tingting.(2021).Contribution of nitrogen sources to streams in mixed-use watershed varies seasonally in a temperate region.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,13.
MLA	Lin, Zuhong,et al."Contribution of nitrogen sources to streams in mixed-use watershed varies seasonally in a temperate region".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021):13.