Comprehensive analysis of nitrogen distributions and ammonia nitrogen release fluxes in the sediments of Baiyangdian Lake, China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Comprehensive analysis of nitrogen distributions and ammonia nitrogen release fluxes in the sediments of Baiyangdian Lake, China
	Zhu, Yaoyao ; Jin, Xin ; Tang, Wenzhong ; Meng, Xin ; Shan, Baoqing
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2019-02
卷号	76 页码:319-328
关键词	Nitrogen Ammonia nitrogen Baiyangdian Lake Flux Sediment
ISSN号	1001-0742
英文摘要	The condition of Baiyangdian Lake (BYDL) will improve as the Xiongan New Area evolves and fulfills its role of easing overcrowding and supporting economic growth. Water and sediment samples from BYDL were analyzed to provide information on nitrogen (N) contamination in BYDL. The mean ammonium N (NH4+-N), nitrate N, and total N concentrations in the water samples were 0.36, 0.12, and 2.22 mg/L, respectively, and the ranges were 0.003-8.38, 0.06-0.30, and 1.25-10.34 mg/L, respectively. The N concentrations in water gradually increased from the north to the south of BYDL. Sediment at 90% of the sampling sites was in or above the moderately contaminated class (1000-2000 mg/kg) defined in US Environmental Protection Agency total N pollution standards. Positive NH4+-N fluxes were found for 28 of the 34 sediment core samples, so the potential for NH4+-N being released from sediment was relatively high. The NH4+-N fluxes were 5.35-48.76 mg/m(2)/day, and the mean and maximum fluxes were 8.71 and 48.76 mg/m(2)/day, respectively. Benthic organisms will be affected more by NH4+-N and NH3 center dot H2O in the surface sediment pore water (mean concentrations 4.93 and 0.13 mg/L, respectively) than by the other forms of N. 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43073]
专题	生态环境研究中心_环境水质学国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Yaoyao,Jin, Xin,Tang, Wenzhong,et al. Comprehensive analysis of nitrogen distributions and ammonia nitrogen release fluxes in the sediments of Baiyangdian Lake, China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,76:319-328.
APA	Zhu, Yaoyao,Jin, Xin,Tang, Wenzhong,Meng, Xin,&Shan, Baoqing.(2019).Comprehensive analysis of nitrogen distributions and ammonia nitrogen release fluxes in the sediments of Baiyangdian Lake, China.JOURNAL OF ENVIRONMENTAL SCIENCES,76,319-328.
MLA	Zhu, Yaoyao,et al."Comprehensive analysis of nitrogen distributions and ammonia nitrogen release fluxes in the sediments of Baiyangdian Lake, China".JOURNAL OF ENVIRONMENTAL SCIENCES 76(2019):319-328.