Altabet M. Isotopic tracers of the marine nitrogen cycle: Present and past[J]. Marine organic matter: biomarkers, isotopes and DNA, 2006: 251-293.
[2]
Mariotti A, Lancelot C, Billen G. Natural isotopic composition of nitrogen as a tracer of origin for suspended organic-matter in the scheldt estuary[J]. Geochimica Et Cosmochimica Acta, 1984, 48(3): 549-555.
[3]
Ostrom E, Macko S, Deibei D, et al. Seasonal variation in the stable carbon and nitrogen isotope biogeochemistry of a coastal cold ocean environment[J]. Geochimica Et Cosmochimica Acta, 1997, 61(14): 2929-2942.
[4]
Voss M, Nausch G, Montoya J P. Nitrogen stable isotope dynamics in the central Baltic Sea: influence of deep-water renewal on the N-cycle changes[J]. Marine Ecology-Progress Series, 1997, 158: 11-21.
[5]
Zhou J, Wu Y, Zhang J, et al. Carbon and nitrogen composition and stable isotope as potential indicators of source and fate of organic matter in the salt marsh of the Changjiang Estuary, China[J]. Chemosphere, 2006, 65(2): 310-317.
Wu Y, Dittmar T, Ludwichowski K, et al. Tracing suspended organic nitrogen from the Yangtze River catchment into the East China Sea[J]. Marine Chemistry, 2007, 107(3): 367-377.
Parsons R, Maita Y, Lalli M. Manual of chemical and biological methods for seawater analysis[M]. Pergamon,1984.
[15]
Cole L, Valiela I, Kroeger K, et al. Assessment of a delta N-15 isotopic method to indicate anthropogenic eutrophication in aquatic ecosystems[J]. Journal of Environmental Quality, 2004,33(1): 124-132.
[16]
McKinney R A, Nelson W G, Charpentier M A,et al. Ribbed mussel nitrogen isotope signatures reflect nitrogen sources in coastal salt marshes[J]. Ecological Applications, 2001, 11(1): 203-214.
[17]
Kwak T, Zedler J. Food web analysis of southern California coastal wetlands using multiple stable isotopes[J]. Oecologia, 1997, 110(2): 262-277.
[18]
Russell K, Galloway J, Macko S, et al. Sources of nitrogen in wet deposition to the Chesapeake Bay region[J]. Atmospheric Environment, 1998, 32(14): 2453-2465.
[19]
Kreitler C, Browning L. Nitrogen-isotope analysis of groundwater nitrate in carbonate aquifers: natural sources versus human pollution[J]. Journal of Hydrology, 1983, 61(1): 285-301.
[20]
Waldron S, Tatner P, Jack I, et al. The impact of sewage discharge in a marine embayment: a stable isotope reconnaissance[J]. Estuarine, Coastal and Shelf Science, 2001, 52(1): 111-115.
[21]
Aravena R, Evans M, Cherry J. Stable isotopes of oxygen and nitrogen in source identification of nitrate from septic systems[J]. Ground water, 2005, 31(2): 180-186.
McClelland J, Valiela I, Michener R. Nitrogen-stable isotope signatures in estuarine food webs: A record of increasing urbanization in coastal watersheds[J]. Limnology and Oceanography, 1997: 930-937.
[24]
Robinson D. δ15N as an integrator of the nitrogen cycle[J]. Trends in Ecology & Evolution, 2001, 16(3): 153-162.
[25]
Thornton S, McManus J. Application of organic carbon and nitrogen stable isotope and C/N ratios as source indicators of organic matter provenance in estuarine systems: evidence from the Tay Estuary, Scotland[J]. Estuarine, Coastal and Shelf Science, 1994, 38(3): 219-233.
[26]
Peterson B, Howarth R, Garritt R. Multiple stable isotopes used to trace the flow of organic matter in estuarine food webs[J]. Science (New York, NY), 1985, 227(4692): 1361-1363.
[27]
Wu Y, Zhang J, Li D J,et al. Isotope variability of particulate organic matter at the PN section in the East China Sea[J]. Biogeochemistry, 2003, 65(1): 31-49.
[28]
Needoba J, Sigman D, Harrison P. The mechanism of isotope fractionation during algal nitrate assimilation as illuminated by the 15N/14N of intracellular nitrate[J]. Journal of Phycology, 2004, 40(3): 517-522.
[29]
Liu X, Yu Z, Song X,et al. The nitrogen isotopic composition of dissolved nitrate in the Yangtze River (Changjiang) estuary, China[J]. Estuarine, Coastal and Shelf Science, 2009, 85(4): 641-650.
[30]
Tian R, Hu F, Saliot A. Biogeochemical processes controlling nutrients at the turbidity maximum and the plume water fronts in the Changjiang Estuary[J]. Biogeochemistry, 1992, 19(2): 83-102.
Mariotti A,Germon J C, Hubert P, et al. Experimental determination of nitrogen kinetic isotope fractionation: some principles; illustration for the denitrification and nitrification processes[J]. Plant and Soil, 1981, 62(3): 413-430.
