深圳湾及邻近水域中的溶解有机氮——其时空分布、来源和生物利用率

Abstract
Figure/Table
References (39)
Related Citation (15)

Download: PDF (481 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

Based on the data obtained monthly from 2000 to 2014, temporal and spatial distributions of dissolved organic nitrogen (DON) concentration in the Shenzhen Bay and coastal southeastern Pearl River Estuary were analyzed. Also sources and bioavailability of the DON were investigated in combination with the salinity, 5-d biochemical oxygen demand and particulate organic matter measurements. The results showed that the DON concentration was 0.45±0.45mg/L with an increase trend from 2000 to 2004 and a decrease one from 2005 to 2014 and higher in summer and winter than spring and autumn in the bay, and 0.16±0.08mg/L with small seasonal changes and an increase trend in the whole period studied in the estuary. The DON appeared conservative and was from simultaneous sources in both of the bay and estuary. A two-component mixing mass balance model was used for estimating the DON terrestrial fraction at about 80% in the bay and 38% in the estuary, suggesting that the DON was mainly from the terrestrial sources in the bay but from the marine sources in the estuary. According to the measurements and regression results, the DON bioavailability was found to be about 14.8% and 15.5% in the bay and estuary respectively, nearly equal to the dissolved organic carbon bioavailability observed in the lower Pearl River Estuary.

Key words： dissolved organic nitrogen temporal and spatial distributions sources bioavailability coastal waters Shenzhen Bay Pearl River Estuary

Received: 18 January 2016

X142

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Xu-lu
	XU Chun-ling
	LIN Fan
	SHI Hua-ming
	ZHANG Jun-xiao

Cite this article:

LI Xu-lu,XU Chun-ling,LIN Fan等. Dissolved organic nitrogen in the Shenzhen Bay and adjacent coastal waters: Its temporal and spatial distributions, sources and bioavailability[J]. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(9): 2757-2764.

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2016/V36/I9/2757

[1]	Bronk D A, See J H, Bradley P, et al. DON as a source of bioavailable nitrogen for phytoplankton[J]. Biogeosciences, 2007,4:283-296.
[2]	De Galan S, Elskens M, Goeyens L, et al. Spatial and temporal trends in nutrient concentrations in the Belgian continental area of the North Sea during the period 1993~2000[J]. Estuarine Coastal and Shelf Science, 2004,61:517-528.
[3]	周毅频,李绪录,张军晓,等.大鹏湾中溶解态总氮和总磷的多年调查结果分析[J]. 生态环境学报, 2012,21(4):706-710.
[4]	Bronk D A. Dynamics of DON[A]. In: Hansell D A, Carlson C A. Biogeochemistry of Marine Dissolved Organic Matter[C]. San Diego: Academic Press, 2002:153-247.
[5]	Berman T, Bronk D A. Dissolved organic nitrogen: a dynamic participant in aquatic ecosystems[J]. Aquatic Microbial Ecology, 2003,31:279-305.
[6]	Cornell S, Randell A, Jickells T. Atmospheric inputs of dissolved organic nitrogen to the oceans. Nature, 1995,376(6537):243-246.
[7]	Lomstein B A, Jensen A G U, Hansen J W, et al. Budgets of sediment nitrogen and carbon cycling in the shallow water of Knebel Vig, Denmark[J]. Aquatic Microbial Ecology, 1998,14: 69-80.
[8]	Kroeger K D, Cole M L, Valiela I. Groundwater-transported dissolved organic nitrogen exports from coastal watersheds[J]. Limnology and Oceanography, 2006,51:2248-2261.
[9]	McCarthy M D, Pratum T, Hedges J, et al. Chemical composition of dissolved organic nitrogen in the ocean[J]. Nature, 1997, 390(6656):150-154.
[10]	Carlson C A, Ducklow H W, Sleeter T D. Stocks and dynamics of bacterioplankton in the northwestern Sargasso Sea[J]. Deep-Sea Research II, 1996,43:491-506.
[11]	Veuger B, Middelburg J J, Boschker H T S, et al. Microbial uptake of dissolved organic and inorganic nitrogen in Randers Fjord[J]. Estuarine Coastal and Shelf Science, 2004,61:507-515.
[12]	Bronk D A, Glibert P M, Ward B B. Nitrogen uptake, dissolved organic nitrogen release, and new production[J]. Science, 1994,265:1843-1846.
[13]	Koopmans D J, Bronk D A. Photochemical production of dissolved inorganic nitrogen and primary amines from dissolved organic nitrogen in waters of two estuaries and adjacent surficial groundwaters[J]. Aquatic Microbial Ecology, 2002,26:295-304.
[14]	Vähätalo A V, Zepp R G. Photochemical mineralization of dissolved organic nitrogen to ammonium in the Baltic Sea[J]. Environmental Science & Technology, 2005,39:6985-6992.
[15]	Obernosterer I, Sempéré R, Herndl G J. Ultraviolet radiation induces reversal of the bioavailability of DOM to marine bacterioplankton[J]. Aquatic Microbial Ecology, 2001,24:61-68.
[16]	Veuger B. Middelburg J J, Boschker H T S, et al. Microbial uptake of dissolved organic and inorganic nitrogen in Randers Fjord[J]. Estuarine Coastal and Shelf Science, 2004,61:507-515.
[17]	Andersson M G I, van Rijswijk P, Middelburg J J. Uptake of dissolved inorganic nitrogen, urea and amino acids in the Scheldt estuary: comparison of organic carbon and nitrogen uptake[J]. Aquatic Microbial Ecology, 2006,44:303-315.
[18]	Van Engeland T, Soetaert K, Knuijt A, et al. Dissolved organic nitrogen dynamics in the North Sea: A time series analysis (1995~2005)[J]. Estuarine, Coastal and Shelf Science, 2010,89: 31-42.
[19]	王琳,陈上群.深圳湾自然条件特征及治理应注意的问题[J]. 人民珠江, 2001,6:4-7.
[20]	王越兴.深圳湾水环境质量及变化趋势分析[J]. 环境科学导刊, 2011,30(3):94-96.
[21]	戴纪翠,高晓薇,倪晋仁,等.深圳近海海域营养现状分析与富营养化水平评价[J]. 环境科学, 2009,30(10):2879-2883.
[22]	ASTM. ASTM D1426-1989B, Standard test methods for ammonia nitrogen in water (Test method B)[S]. Philadelphia, 1989.
[23]	ASTM. ASTM D3590-1989B, Standard test methods for total Kjeldahl nitrogen in water (Test method B)[S]. Philadelphia, 1989.
[24]	APHA. 5210B, Standard Methods for the Examination of Water and Wastewater (20th Edition)[S]. New York, 1998.
[25]	李绪录,周毅频,夏华永.2000~2010年大鹏湾颗粒有机物的年变化和年际变化[J]. 环境科学, 2013,34(3):857-863.
[26]	张军晓,李绪录,周毅频,等.2000-2010年深圳湾及其邻近海域溶解无机氮的时空分布[J]. 生态环境学报, 2013,22(3):475-480.
[27]	李绪录,张军晓,史华明,等.深圳湾及邻近沿岸水域总溶解氮的分布、组成和来源及氮形态的转化[J]. 环境科学学报, 2014, 34(8):2017-2034.
[28]	赵明辉,李绪录.2000~2011年深圳湾及邻近水域颗粒有机物的来源和时空分布[J]. 中国环境科学, 2014,34(11):2905-2911.
[29]	李绪录,张军晓,周毅频,等.2000~2010年大鹏湾溶解有机氮的时空分布[J]. 中国环境科学, 2013,33(10):1799-1807.
[30]	Li X-L, Shi H-M, Xia H-Y, et al. Seasonal hypoxia and its potential forming mechanisms in the Mirs Bay, the northern South China Sea[J]. Continental Shelf Research, 2014,80:1-7.
[31]	McKenna J H. DOC dynamics in a small temperate estuary: simultaneous addition and removal processes and implications on observed nonconservative behavior[J]. Estuaries, 2004,27:604-616.
[32]	He B Y, Dai M H, Zhai W D, et al. Distribution, degradation and dynamics of dissolved organic carbon and its major compound classes in the Pearl River estuary, China[J]. Marine Chemistry, 2010,119(1-4):52-64.
[33]	Callahan J, Dai M-H, Chen R F, et al. Distribution of dissolved organic matter in the Pearl River Estuary, China[J]. Marine Chemistry, 2004,89:211-224.
[34]	林以安,苏纪兰,扈传昱,等.珠江口夏季水体中的氮和磷[J]. 海洋学报, 2004,26(5):63-73.
[35]	Redfield A C, Ketchum B H, Richards F A. The influence of organisms on the composition of seawater[A]. In: Hill M N (ed.). The Sea: The Composition of Sea-Water, Vol. 2[C]. London: Harvard University Press, 1963:26-77.
[36]	Björkman K M, Karl D M. Presence of dissolved nucleotides in the North Pacific Subtropical Gyre and their role in cycling of dissolved organic phosphorus[J]. Aquatic Microbial Ecology, 2005,39:193-203.
[37]	Cooper J E, Early J, Holding A J. Mineralization of dissolved organic phosphorus from a shallow eutrophic lake[J]. Hydrobiologia, 1991,209:89-94.
[38]	Nausch M, Nausch G. Bioavailable dissolved organic phosphorus and phosphorus use by heterotrophic bacteria[J]. Aquatic Biology, 2007,1:151-160.
[39]	Nausch M, Nausch G. Bioavailability of dissolved organic phosphorus in the Baltic Sea[J]. Marine Ecology Progress Series, 2006,321:9-17.