长江口及其邻近海域颗粒态氨基酸的分布以及对有机质降解和来源的指示

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	长江口及其邻近海域颗粒态氨基酸的分布以及对有机质降解和来源的指示
	张敬慧 1; 陈岩 1; 杨剑 2; 杨桂朋 1
刊名	海洋环境科学
	2022
卷号	41 期号:2 页码:283-292
关键词	颗粒态氨基酸颗粒有机碳来源降解长江口
ISSN号	1007-6336
其他题名	Distribution of particulate amino acids in the Changjiang Estuary and its adjacent sea and their indications for degradation and sources of organic matter
文献子类	期刊论文
英文摘要	A total of 50 samples were collected to investigate the distribution and composition of particulate amino acids(PAA)in the Changjiang Estuary and its adjacent East China Sea in March, 2018. The results showed that the average concentration of PAA was(1.86 1.02)mumol/L(0.76~5.55 mumol/L). The major components of PAA in this study were Asp(aspartic acid), Gly(glycine acid), Ser(serine acid), Ala(alanine acid)and Glu(glutamic acid). The average concentrations of particulate organic carbon(POC)and particulate nitrogen(PN)were(74.21 37.70)mumol/L(18.06~238.66 mumol/L)and(7.52 3.46)mumol/L(2.27~ 19.86 mumol/L), respectively. The distributions of PAA, POC and PN showed similar trends, with elevated concentrations were found at the mouth of the Changjiang River and nearshore stations of the study area. The vertical distributions of PAA, POC and PN exhibited a uniform pattern. The C/N ratio in this study gradually decreased seaward, reflecting the influence of terrestrial input. Derivative parameters Asp/Gly and Ser + Thr [mol%] based on amino acids indicated that POM was dominated by diatomaceous organic matter, which might be due to the dominant growth of diatoms in the study area. No correlation were found between the PAA-C(N)% and the degradation index(DI), respectively. This discrepancy may be related to the application of PAAC(N)% and DI to different stages of degradation and the diversity of sources and transformations of amino acids.
语种	中文
CSCD记录号	CSCD:7203155
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/34121]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.中国海洋大学化学化工学院,海洋化学理论与工程技术教育部重点实验室,山东青岛266100; 2.中国科学院烟台海岸带研究所,海岸带环境工程技术研究中心,山东烟台264003
推荐引用方式 GB/T 7714	张敬慧,陈岩,杨剑,等. 长江口及其邻近海域颗粒态氨基酸的分布以及对有机质降解和来源的指示[J]. 海洋环境科学,2022,41(2):283-292.
APA	张敬慧,陈岩,杨剑,&杨桂朋.(2022).长江口及其邻近海域颗粒态氨基酸的分布以及对有机质降解和来源的指示.海洋环境科学,41(2),283-292.
MLA	张敬慧,et al."长江口及其邻近海域颗粒态氨基酸的分布以及对有机质降解和来源的指示".海洋环境科学 41.2(2022):283-292.