Nitrogen cycles: Past, present, and future

Biogeochemistry

Volumn 70, Issue 2, 2004, Pages 153-226

  Galloway, J N ^a   Dentener, F J ^b   Capone, D G ^c   Boyer, E W ^d   Howarth, R W ^e   Seitzinger, S P ^f   Asner, G P ^g   Cleveland, C C ^h   Green, P A ⁱ   Holland, E A ^j   Karl, D M ^k   Michaels, A F ^c   Porter, J H ^a   Townsend, A R ^h   Vorosmarty C J ⁱ  

^a UNIVERSITY OF VIRGINIA   (United States)

^b JOINT RESEARCH CENTRE   (Italy)

^c UNIVERSITY OF SOUTHERN CALIFORNIA   (United States)

^d STATE UNIVERSITY OF NEW YORK   (United States)

^e Department of Molecular Biology and Genetics   (United States)

^f RUTGERS UNIVERSITY   (United States)

^g STANFORD UNIVERSITY   (United States)

^h UNIVERSITY OF COLORADO   (United States)

ⁱ UNIVERSITY OF NEW HAMPSHIRE   (United States)

^j NATIONAL CENTER FOR ATMOSPHERIC RESEARCH   (United States)

^k UNIVERSITY OF HAWAII   (United States)

more..

Author keywords

Denitrification; Fertilizer; Fossil fuel combustion; Haber bosch; Nitrogen; Nitrogen fixation

Indexed keywords

EID: 84892646050     PISSN: 01682563     EISSN: 1573515X     Source Type: Journal    
DOI: 10.1007/s10533-004-0370-0     Document Type: Article

References (249)

1. Aber J.D., Magill A., McNulty S.G., Boone R.D., Nadelhoffer K.J., Downs M. and Hallett R. 1995. Forest biogeochemistry and primary production altered by nitrogen saturation. Water Air Soil Pollut. 85: 1665-1670.
2. Aber J.D., McDowell W.H., Nadelhoffer K.J., Magill A., Berntson G., Kamakea M., McNulty S.G., Currie W., Rustad L. and Fernandez I. 1998. Nitrogen saturation in temperate forest ecosystems: hypotheses revisited. BioScience 48: 921-934.
3. Agrawal G.D., Lunkad S.K. and Malkhed T. 1999. Diffuse agricultural nitrate pollution of groundwaters in India. Water Sci. Technol. 39: 67-75.
4. Alexander R.B., Johnes P.J., Boyer E.W. and Smith R.A. 2002. A comparison of methods for estimating the riverine export of nitrogen from large watersheds. Biogeochemistry 57/58: 295-339.
5. Aller R.C., Mackin J.E., Ullman W.J., Wang C.H., Tsai S.M., Jin J.C., Sui Y.N. and Hong J.Z. 1985. Early chemical diagenesis, sediment-water solute exchange, and storage of reactive organic matter near the mouth of the Changjiang, East China Sea. Continental Shelf Res. 4(1-2): 227-251.
6. 14N ratios. Nature 373: 506-510.
7. Asner G.P., Townsend A.R., Riley W.J., Matson P.A., Neff J.C. and Cleveland C.C. 2001. Physical and biogeochemical controls over terrestrial ecosystem responses to nitrogen deposition. Biogeochemistry 54: 1-39.
8. Ayres R.U., Schlesinger W.H. and Socolow R.H. 1994. Human impacts on the carbon and nitrogen cycles. In: Socolow R.H., Andrews C., Berkhout R. and Thomas V. (eds), Industrial Ecology and Global Change. Cambridge University Press, New York, pp. 121-155.
9. Bacon P.E. and Freney J.R. 1989. Nitrogen loss from different tillage systems and the effect on cereal grain yield. Fert. Res. 20: 59-66.
10. Bange H., Rixen T., Johansen A., Siefert R., Ramesh R., Ittekkot V., Hoffmann M. and Andreae M. 2000. A revised nitrogen budget for the Arabian Sea. Global Biogeochem. Cycles 14: 1283-1297.
11. Bashkin V.N., Park S.U., Choi M.S. and Lee C.B. 2002. Nitrogen budgets for the Republic of Korea and the Yellow Sea region. Biogeochemistry 57-58: 387-403.
12. Behrenfeld M. and Kolber Z. 1999. Widespread iron limitation in the South Pacific Ocean. Science 283: 840-843.
13. Bender M., Ganning K.A., Froelich P.M., Heath G.R. and Maynard V. 1977. Interstitial nitrate profiles and oxidation of sedimentary organic matter in the eastern equatorial Atlantic. Science 198: 605-609.
14. Billen G. 1978. Budget of nitrogen recycling in North Sea sediments off Belgian Coast. Estuarine Coastal Marine 7(2): 127-146.
15. Binkley D., Cromack K. Jr. and Baker D.D. 1994. Nitrogen fixation by red alder: biology, rates, and controls. In: Hibbs D.E. et al. (eds), The Biology and Management of Red Alder. Oregon State Univ. Press, Corvallis, pp. 57-72.
16. Blundon D.J. and Dale M.R.T 1990. Dinitrogen fixation (acetylene reduction) in primary succession near Mount Robson, British Columbia, Canada. Arct. Alp Res. 22: 255-263.
17. Boesch D.F., Brinsfield R.B., Howarth R.W., Baker J.L., David M.B., Downsing J., Fretz A.T., Jaynes D.B., Keeney D.R., Lowarnace R., Miller K., Mitsch W.J., Nemazie D., Paerl H.W., Rabalais N.N., Randall G.W., Scavia D., Schepters J.S., Shabman L., Sharpley A.N., Simposon T.W., Staver K.W. and Townsend A. 2002. Improving water quality while maintaining agricultural production. Submitted manuscript.
18. Bonan G.B. 1996. A Land Surface Model (LSM Version 1.0) for Ecological, Hydrological and Atmospheric Studies: Technical Description and User's Guide. NCAR Technical Note T.N.-417+STR. National Center for Atmospheric Research, Boulder, CO.
19. Boring L.R. and Swank W.T. 1984. The role of black locust (Robinia pseudo-acacia) in forest succession. J. Ecol. 72: 749-766.
20. Bouwman A.F., van der Hoek K.W. and Olivier J.G.J. 1995. Uncertainty in the global source distribution of nitrous oxide. J. Geophys. Res. 100: 2785-2800.
21. Bouwman A.F., Lee D.S., Asman W.A.H., Dentener F.J., van der Hoek K.W. and Olivier J.G.J. 1997. A global high-resolution emission inventory for ammonia. Global Biogeochem. Cycles 11: 561-578.
22. Bouwman A.F., Bouman L.J.M and Batjes N.H. 2002. Estimation of global NH3 volatilization loss from synthetic fertilizers and animal manure applied to arable lands and grasslands. Global Biogeochem. Cycles 16(2): Art. No. 1024.
23. Boyer E.W. and Howarth R.H. (eds) 2002. The Nitrogen Cycles at Regional to Global Scales. Kluwer, New York.
24. Boyer E.W., Goodale C.L., Jaworski N.A. and Howarth R.W. 2002. Anthropogenic nitrogen sources and relationships to riverine nitrogen export in the northeastern USA. Biogeochemistry 57-58: 137-169.
25. Bradley M.J. and Jones B.M. 2002. Reducing global NOx emissions: promoting the development of advanced energy and transportation technologies. Ambio 31: 141-149.
26. Brandes J.A. and Devol A.H. 2002. A global marine-fixed nitrogen isotopic budget: Implications for Holocene nitrogen cycling. Global Biogeochem. Cycles 16(4): Art. No. 1120.
27. Brandes J., Devol A., Yoshinari T., Jayakumar D. and Naqvi S. 1998. Isotopic composition of nitrate in the central Arabian Sea and eastern tropical North Pacific: a tracer for mixing and nitrogen cycles. Limnol. Oceanogr. 43: 1680-1689.
28. Brenkert A.L. (ed.) 1997. Northern Hemisphere Biome and Process Specific Forest Areas and Gross Merchantable Volumes: 1890-1990. CDIAC (Carbon Dioxide Information Analysis Center) Database DB1017 (2/1997). Oak Ridge National Laboratory, TN.
29. Broecker W.S. and Henderson G.M. 1998. The sequence of events surrounding termination II and their implications for the cause of glacial-interglacial CO2 changes. Paleoceanography 13: 352-364.
30. Burkart M.R. and James D.E. 2003. Agricultural nitrogen trends in the Mississippi Basin, 1949-1997. In: Hellums D. (ed.), Agricultural Production Systems of the 21st Century: Challenges and Opportunities in Plant Nutrient Management. ASA Special Publication, Madison, WI.
31. Butterback-Bahl K., Gasche R., Willibald G. and Papen H. 2002. Exchange of N-gases at the Hoglwald forest-a summary. Plant Soil 240: 117-123.
32. Cai G.X., Zhu Z.L., Trevitt A.C.F., Freney J.R. and Simpson J.R. 1986. Nitrogen loss from ammonium bicarbonate and urea fertilizers applied to flooded rice. Fert. Res. 10: 203-215.
33. Capone D.G. 1983. Benthic nitrogen fixation. In: Carpenter E.J. and Capone D.G. (eds), Nitrogen in the Marine Environment. Academic Press, New York, pp. 105-137.
34. Capone D.G. 2001. Marine nitrogen fixation: what's the fuss? Curr. Opin. Microbiol. 4: 341-348.
35. Capone D.G. and Carpenter E.J. 1999. Nitrogen fixation by marine cyanobacteria: historical and global perspectives. Bull. Inst. Oceanogr. Monaco 19: 235-256.
36. Capone D.G., Zehr J., Paerl H., Bergman B. and Carpenter E.J. 1997. Trichodesmium: a globally significant marine cyanobacterium. Science 276: 1221-1229.
37. Capone D.G., Subramaniam A., Montoya J., Voss M., Humborg C., Johansen A., Siefert R. and Carpenter E.J. 1998. An extensive bloom of the N2-fixing cyanobacterium, Trichodesmiumerythraeum, in the Central Arabian Sea. Mar. Ecol. Prog. Ser. 172: 281-292.
38. Capone D., Burns J.A., Montoya J.P., Michaels A.F., Subramaniam A. and Carpenter E.J. 2004. New nitrogen input to the tropical North Atlantic Ocean by nitrogen fixation by the cyanobacterium, Trichodesmium spp. Global Biogeochemical Cycles.
39. Carpenter E.J. 1983a. Nitrogen fixation by marine Oscillatoria (Trichodesmium) in the world's oceans. In: Carpenter E.J. and Capone D.G. (eds), Nitrogen in the Marine Environment. Academic Press, New York, pp. 65-103.
40. Carpenter E.J. 1983b. Physiology and ecology of marine Oscillatoria (Trichodesmium). Marine Biol. Lett. 4: 69-85.
41. Carpenter E.J. and Capone D.G. 1992. Nitrogen fixation in Trichodesmium blooms. In: Carpenter E.J. (ed.), Marine Pelagic Cyanobacteria: Trichodesmium and other Diazotrophs. Kluwer, New York, pp. 211-217.
42. Carpenter E.J. and Price C.C. 1977. Nitrogen fixation, distribution, and production of Oscillatoria (Trichodesmium) in the northwestern Atlantic Ocean and Caribbean Sea. Limnol. Oceanog. 22: 60-72.
43. Carpenter E., Montoya J.P., Burns J., Mulholland M., Subramaniam A. and Capone D.G. 1999. Extensive bloom of a N2-fixing symbiotic association in the tropical Atlantic Ocean. Mar. Ecol. Prog. Ser. 188: 273-283.
44. Carpenter E.J., Subramaniam A. and Capone D.G. 2004. Biomass and primary productivity of the cyanobacterium, Trichodesmium spp., in the southwestern tropical N Atlantic Ocean. Deep-Sea Research I 51: 173-203.
45. Cassman K.G., Dobermann A.D. and Walters D. 2002. Agroecosystems, nitrogen management and economics. Ambio 31: 132-140.
46. Chameides W.L., Kasibhatla P.S., Yienger J. and Levy H. II 1994. The growth of continental-scale metro-agro-plexes, regional ozone pollution, and world food production. Science 264: 74-77.
47. Christensen J.P., Murray J.W., Devol A.H. and Codispoti L.A. 1987. Denitrification in continental shelf sediments has a major impact on the oceanic nitrogen budget. Global Biogeochem. Cycles 1: 97-116.
48. Cleveland C.C., Townsend A.R., Schimel D.S., Fisher H., Howarth R.W., Hedin L.O., Perakis S.S., Latty E.F., Von Fischer J.C., Elseroad A. and Wasson M.F. 1999. Global patterns of terrestrial biological nitrogen (N2) fixation in natural ecosystems. Global Biogeochem. Cycles 13: 623-645.
49. Codispoti L.A. and Richards F.A. 1976. Analysis of horizontal regime of denitrification in Eastern Tropical North Pacific. Limnol. Oceanog. 21: 379-388.
50. Codispoti L., Brandes J., Christensen J., Devol A., Naqvi S., Paerl H. and Yoshinari T. 2001. The oceanic fixed nitrogen and nitrous oxide budgets: moving targets as we enter the anthropocene? Scientia Marina 65(Supp. 2): 85-105.
51. Conrad R. and Dentener F.J. 1999. The application of compensation point concepts in scaling of fluxes. In: Bouwman A.F. (ed.), Approaches to Scaling of Trace Gas Fluxes in Ecosystems. Elsevier, New York, pp. 203-216.
52. Cornell S., Rendell A. and Jickells T. 1995. Atmospheric input of dissolved organic nitrogen in the oceans. Nature 376: 243-246.
53. Crews T.E. 1999. The presence of nitrogen fixing legumes in terrestrial communities: evolutionary vs. ecological considerations. Biogeochemistry 46: 233-246.
54. Craswell E.T. and Martin A.E. 1975a. Isotopic studies of the nitrogen balance in a cracking clay. I. Recovery of added nitrogen from soil and wheat in the glasshouse and gas lysimeter. Aust. J. Soil Res. 13: 43-52.
55. 15N added to columns of packed soil and microplots growing wheat in the field. Aust. J. Soil Res. 13: 53-61.
56. Davidson E.A. and Ackerman I.L. 1993. Changes in soil carbon inventories following cultivation of previously untilled soils. Biogeochemistry 20: 161-193.
57. Davidson E.A. and Kingleee W 1997. A global inventory of nitric oxide emissions from soils. Nutr. Cycl. Agroecosyst. 48: 37-50.
58. De Datta S.K., Trevitt A.C.F., Freney J.R., Obcemea W.N., Real J.G. and Simpson J.R. 1989. Measuring nitrogen losses from lowland rice using bulk aerodynamic and nitrogen-15 balance methods. Soil Sci. Soc. Am. J. 53: 1275-1281.
59. Delwiche C.C. 1970. The nitrogen cycle. Sci. Am. 223: 137-146.
60. Dentener F.J. and Crutzen P.J. 1994. A three-dimensional model of the global ammonia cycle. J. Atmos. Chem. 19: 331-369.
61. Dentener F.J. and Raes F. 2002. Greenhouse gases and atmospheric chemistry: towards integration of air pollution and climate change olicies. Third International Symposium on Non-CO2 Greenhouse Gases (NCGG-3). Maastricht, the Netherlands.
62. Deutsch C., Gruber N., Key R.M., Sarmiento J.L. and Ganachaud A. 2001. Denitrification and N2 fixation in the Pacific Ocean. Global Biogeochem. Cycles 15: 483-506.
63. Devol A.H. 1991. Direct measurement of nitrogen gas fluxes from continental shelf sediments. Nature 349: 319-322.
64. Devol A., Codispoti L. and Christensen J. 1997. Summer and winter denitrification rates in western Arctic shelf sediments. Cont. Shelf Res. 17: 1029-1050.
65. Dise N.B. and Wright R.F. (eds) 1992. The NITREX Project, Commission of the European Communities; Ecosystems Research Rep. No. 2. Brussels.
66. Dise N.B. and Wright R.F. 1995. Nitrogen leaching from European forests in relation to nitrogen deposition. For. Ecol. Manage. 71: 153-161.
67. Dore J.E., Brum J.R., Tupas L.M. and Karl D.M. 2002. Seasonal and interannual variability in sources of nitrogen supporting export in the oligotrophic subtropical North Pacific Ocean. Limnol. Oceanogr. 47: 1595-1607.
68. EDC 2000. Global Land Cover Characterization. Accessible through the Eros Data Center Distributed Active Archive Center at http://edcdaac.usgs.gov/.
69. Emmer E. and Thunell R.C. 2000. Nitrogen isotope variations in Santa Barbara Basin sediments: implications for denitrification in the eastern tropical North Pacific during the last 50,000 years. Paleoceanography 15(4): 377-387.
70. Erisman J.W., de Vries W., Kros H., Oenema O., van der Eerden L., van Zeijts H. and Smeulders S. 2001. An outlook for a national integrated nitrogen policy. Environ. Sci. Pol. 4: 87-95.
71. ESRI 1993. Digital Chart of the World. Environmental Systems Research Institute, Inc., Redlands, California.
72. Falkowski P. 1997. Evolution of the nitrogen cycle and its influence on biological sequestration of CO2 in the oceans. Nature 387: 272-273.
73. Falkowski P. 2000. Rationalizing elemental ratios in unicellular algae. J. Phycol. 36: 3-6.
74. FAO 2000. Fertilizer requirements in 2015 and 2030. Published by Food and Agriculture Organization of the United Nations, Rome, ISBN 92-5-104450-3, pp. 29.
75. FAO 2002. World agriculture: towards 2015/2040, Summary Report. Published by Food and Agriculture Organization of the United Nations, Rome, ISBN 92-5-104761-8, 97 pp.
76. FAOSTAT 2000. FAO Statistical Databases. Accessible through the Food and Agriculture Organization of the United Nations at http://apps.fao.org.
77. Farrell J.W., Pedersen T.F., Calvert S.E. and Nielsen B. 1995. Glacial-interglacial changes in nutrient utilization in the equatorial Pacific Ocean. Nature 377: 514-518.
78. Febre Domene L. and Ayres R.U. 2001. Nitrogen's role in industrial systems. J. Indust. Ecol. 5: 77-103.
79. Fekete B.M., Vorosmarty C.J. and Grabs W. 2002. High-resolution fields of global runoff combining observed river discharge and simulated water balances. Global Biogeochem. Cyles 16(3): Art. No. 1042.
80. Fenn M.E., Poth M.A., Aber J.D., Baron J.S., Bormann B.T., Johnson D.W., Lemly A.D., McNulty S.G., Ryan D.F. and Stottlemyer R 1998. Nitrogen excess in North American ecosystems: predisposing factors, ecosystem responses and management strategies. Ecol. Appl. 8: 706-733.
81. Fixen P.E. and West F.B. 2002. Nitrogen fertilizers: meeting the challenge. Ambio 31: 169-176.
82. Follett J.R. and Follett R.F. 2001. Utilization and metabolism of nitrogen by humans. In: Follett R. and Hatfield J.L. (eds), Nitrogen in the Environment: Sources, Problems and Management. Elsevier, New York, pp. 65-92.
83. Freney J.R., Trevitt A.C.F, De Datta S.K., Obcemea W.N. and Real J.G. 1990. The interdependence of ammonia volatilization and denitrification as nitrogen loss processes in flooded rice in the Philippines. Biol. Fert. Soils 9: 31-36.
84. Freney J.R., Smith C.J. and Mosier A.R. 1992. Effect of a new nitrification inhibitor (wax coated calcium carbide) on transformations and recovery of fertilizer nitrogen by irrigated wheat. Fert. Res. 32: 1-11.
85. Freney J.R., Chen D.L., Mosier A.R., Rochester I.J., Constable G.A. and Chalk P.M. 1993. Use of nitrification inhibitors to increase fertilizer nitrogen recovery and lint yield in irrigated cotton. Fert. Res. 34: 37-44.
86. Freney J.R., Keerthisinghe D.G., Phongpan S., Chaiwanakupt P. and Harrington K. 1995. Effect of urease, nitrification and algal inhibitors on ammonia loss, and grain yield of flooded rice in Thailand. Fert. Res. 40: 225-233.
87. Fuhrman J.A. and Capone D.G. 1991. Possible biogeochemical consequences of ocean fertilization. Limnol. Oceanogr. 36: 1951-1959.
88. Galbally I.E., Freney J.R., Muirhead W.A., Simpson J.R., Trevitt A.C.F and Chalk P.M. 1987. Emission of nitrogen oxides (NOx) from a flooded soil fertilized with urea: relation to other nitrogen loss processes. J. Atmos. Chem. 5: 343-365.
89. Galloway J.N. 1998. The global nitrogen cycle: changes and consequences. Environ. Pollut. 102(S1): 15-24.
90. Galloway J.N. 2000. Nitrogen mobilization in Asia. Nutr. Cycl. Agroecosyst. 57: 1-12.
91. Galloway J.N. and Cowling E.B. 2002. Reactive nitrogen and the world: two hundred years of change. Ambio 31: 64-77.
92. Galloway J.N., Schlesinger W.H., Levy H. II, Michaels A.II and Schnoor J.L. 1995. Nitrogen fixation: anthropogenic enhancement-environmental response. Global Biogeochem. Sci. 9: 235-252.
93. Galloway J.N., Howarth R.W., Michaels A.F., Nixon S.W., Prospero J.M. and Dentener F.J. 1996. Nitrogen and phosphorus budgets of the North Atlantic Ocean and its watershed. Biogeochemistry 35: 3-25.
94. Galloway J.N., Cowling E.B., Seitzinger S.J. and Socolow R 2002. Reactive nitrogen: too much of a good thing? Ambio 31: 60-63.
95. Galloway J.N., Aber J.D., Erisman J.W., Seitzinger S.P., Howarth R.H., Cowling E.B. and Cosby B.J. 2003. The nitrogen cascade. BioScience 53: 341-356.
96. Ganeshram R.S., Pedersen T.F., Calvert S.E. and Murray J.W. 1995. Large changes in oceanic nutrient inventories from glacial to interglacial periods. Nature 376: 755-758.
97. Ganeshram R., Pederson T.F., Calvert S.E. and Francois R. 2002. Reduced nitrogen fixation in the glacial ocean inferred from changes in marine nitrogen inventories and phosphorus inventories. Nature 415: 156-159.
98. Gao Y., Kaufman J., Tanre D., Kolber D. and Falkowski P.G. 2001. Seasonal distribution of aeolian iron fluxes to the global ocean. Geophys. Res. Lett. 28: 29-32.
99. Goering J.J., Dugdale R.C. and Menzel D. 1966. Estimates of in situ rates of nitrogen uptake by Trichodesmium sp. in the tropical Atlantic Ocean. Limnol. Oceanogr. 11: 614-620.
100. Goodale C.L., Lajtha K., Nadelhoffer K.J., Boyer E.A. and Jaworski N.A. 2002. Forest nitrogen sinks in large eastern US watersheds: estimates from forest inventory and an ecosystem model. Biogeochemistry 57/58: 239-266.
101. Goolsby D.A., Battaglin W.A., Lawrence G.B., Artz R.S., Aulenbach B.T., Hooper R.P., Keeney D.R. and Stensland G.J. 1999. Flux and sources of nutrients in the Mississippi-Atchafalaya River Basin; Topic 3. Report for the Integrated Assessment on Hypoxia in the Gulf of Mexico. NOAA Coastal Ocean Program Decision Analysis Series No. 17. NOAA, Silver Spring, MD.
102. Gorham E., Vitousek P.M. and Reiners W.A. 1979. The regulation of chemical budgets over the course of terrestrial ecosystem succession. Ann. Rev. Ecol. Syst. 10: 53-84.
103. Green P.A., Vorosmarty C.J., Meybeck M., Galloway J.N., Peterson B.J. and Boyer E.W. 2004. Pre-industrial and contemporary fluxes of nitrogen through rivers: a global assessment based on typology. Biogeochemistry 68(1): 71-105.
104. Gruber N. 2004. The dynamics of the marine nitrogen cycle and its influence on atmospheric CO2 variation. In: Follows M. and Oguz T. (eds), Carbon Climate Interactions. J. Wiley, Hoboken, NJ, in press.
105. Gruber N. and Sarmiento J. 1997. Global patterns of marine nitrogen fixation and denitrification. Global Biogeochem. Cycles 11: 235-266.
106. Gundersen K., Corbin J., Hanson C., Hanson M., Hanson R., Russell D., Stollar A. and Yamada O. 1976. Structure and biological dynamics of the oligotrophic ocean photic zone off the Hawaiian Islands. Pacific Sci. 30: 45-68.
107. Gundersen P. 1991. Nitrogen deposition and the forest nitrogen cycle: role of denitrification. For. Ecol. Manage. 44: 15-28.
108. Haines J.R., Atlas R.M., Griffiths R.P. and Morita R.Y. 1981. Denitrification and nitrogen-fixation in Alaskan continental-shelf sediments. Appl. Environ. Microbiol. 41: 412-421.
109. Hansell D., Bates N. and Olson D. 2004. Excess nitrate and nitrogen fixation in the North Atlantic Ocean. Mar. Chem. 84: 243-265.
110. Haug G., Pedersen T., Sigman D., Calvert S., Nielsen B. and Peterson L. 1998. Glacial/interglacial variations in production and nitrogen fixation in the Cariaco Basin during the last 580K years. Paleoceanography 13: 427-3432.
111. Hedges J.I. and Keil R.G. 1995. Sedimentary organic matter preservation: an assessment and speculative synthesis. Mar. Chem. 49: 81-115.
112. Hedin L.O., Armesto J.J. and Johnson A.H. 1995. Patterns of nutrient loss from unpolluted, oldgrowth temperate forests: evaluation of biogeochemical theory. Ecology 76: 493-509.
113. Holland E.A., Braswell B.H., Lamarque J.F., Townsend A., Sulzman J.F., Muller J.-F., Dentener F., Brasseur G., Levy H. II, Penner J.E. and Roelofs G.J. 1997. Variations in the predicted spatial distribution of atmospheric nitrogen deposition and their impact on carbon uptake by terrestrial ecosystems. J. Geophys. Res. 102: 15849-15866.
114. Holland E.A., Dentener F.J., Brasswell B.H. and Sulzman J.M. 1999. Contemporary and pre-industrial global reactive nitrogen budgets. Biogeochemistry 46: 7-43.
115. Houghton R.A. and Hackler J.L. 2002. Carbon flux to the atmosphere from land-use changes. In: Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, US Department of Energy, Oak Ridge, TN.
116. Howarth R.W. 1998. An assessment of human influences on fluxes of nitrogen from the terrestrial landscape to the estuaries and continental shelves of the North Atlantic Ocean. Nutr. Cycl. Agroecosyst. 52: 213-223.
117. Howarth R.W., Marino R., Lane J. and Cole J.J. 1988. Nitrogen fixation in freshwater, estuarine, and marine ecosystems. 2. Biogeochemical controls. Limnol. Oceanogr. 33: 688-701.
118. Howarth R.W., Billen G, Swaney D., Townsend A., Jaworksi N., Lajtha K., Downing J.A., Elmgren R., Caraco N., Jordan T., Berendse F., Freney J., Kudeyarov V., Murdoch P. and Zhu Zhao-Liang 1996. Regional nitrogen budgets and riverine N and P fluxes for the drainages to the North Atlantic Ocean: Natural and human influences. Biogeochemistry 35: 75-139.
119. Howarth R.W., Boyer E., Pabich W. and Galloway J.N. 2002. Nitrogen use in the United States from 1961-2000, and estimates of potential future trends. Ambio 31: 88-96.
120. Humphreys E., Freney J.R., Constable G.A., Smith J.W.B., Lilley D. and Rochester I.J. 1990. The fate of your N fertilizer. In Porch. 5th Aust. Cotton Conf., pp. 161-164.
121. IMAGE 2001. The IMAGE 2.2 implementation of the SRES scenarios. A comprehensive analysis of emissions, climate change and impacts in the 21st Century. CD-ROM publication 481508018. National Institute for Public Health and the Environment, Bilthoven, The Netherlands.
122. IPCC 1996. Climate change 1995: the science of climate change. In: Houghton J.T., Meira Filho L.G., Callander B.A., Harris N., Kattenberg A. and Maskell K. (eds), Second Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, New York.
123. IPCC 2001. Climate change 2001: the scientific basis. In: Houghton J.T., Griggs D.J., Noguer M., van der Linden P.J., Dai X., Maskell K. and Johnson C.A. (eds), Third Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, New York.
124. Joos F., Plattner G.K., Stocker T.F., Marchal O. and Schmittner A. 1999. Global warming and marine carbon cycle feedbacks and future atmospheric CO2. Science 284: 464-467.
125. Johnson H.B. and Mayeux H.S. 1990. Prosopis glandulosa and the nitrogen balance of rangelands: extent and occurrence of nodulation. Oecologia 84: 176-185.
126. Karl D.M. 1999. A sea of change: biogeochemical variability in the North Pacific subtropical gyre. Ecosystems 2: 181-214.
127. Karl D.M. 2002. Nutrient dynamics in the deep blue sea. Trends Microbiol. 10: 410-418.
128. Karl D.M., Letelier R., Hebel D.V., Bird D.F. and Winn C.D. 1992. Trichodesmium blooms and new nitrogen in the north Pacific gyre. In: Carpenter E.J., Capone D.G. and Rueter J.G. (eds), Marine Pelagic Cyanobacteria: Trichodesmium and Other Diazotrophs. Kluwer, New York, pp. 219-237.
129. Karl D., Letelier R., Tupas L., Dore J., Christian J. and Hebel D. 1997. The role of nitrogen fixation in biogeochemical cycling in the subtropical north Pacific ocean. Nature 386: 533-538.
130. Karl D., Michaels A., Bergman B., Capone D., Carpenter E., Leetelier R., Lipschultz F., Paerl H., Sigman D. and Stal L. 2002. Dinitrogen fixation in the world's oceans. Biogeochemistry 57/58: 47-98.
131. Keerthisinghe D.G., Freney J.R. and Mosier A.R. 1993. Effect of wax-coated calcium carbide and nitrapyrin on nitrogen loss and methane emission from dry-seeded flooded rice. Biol. Fertil. Soils 16: 71-75.
132. Khalil M.A. and Rasmussen R.A. 1982. The global sources of nitrous oxide. J. Geophys. Res. 97: 14651-14660.
133. Klein Goldewijk C.G.M. and Battjes J.J. 1997. A hundred year (1890-1990) database for integrated environmental assessments (HYDE, version 1.1) Rept. 422514002, Natl. Ist. of Pub. Health and the Environment. Bilthoven, Netherlands.
134. Koike I. and Hattori A. 1979. Estimates of dentirification in sediments of the Bering Sea shelf. Deep Sea Res. 26(4): 409-415.
135. Kossinna E. 1921. Die Tiefen des Weltmeeres. Inst. Meersekunde, Veroff., Geogr. naturwiss, 70 pp.
136. Kramer D.A. 1999. Minerals Yearbook. Nitrogen. US Geological Survey Minerals Information. http://minerals.usgs.gov/minerals/pubs/commodity/nitrogen/.
137. Kroeze C. and Seitzinger S.P. 1998. Nitrogen inputs to rivers, estuaries and continental shelves and related nitrous oxide emissions in 1990 and 2050: a global model. Nutr. Cycl. Agroecosyst. 52: 195-212.
138. Kroeze C., Mosier A. and Bouwman L. 1999. Closing the global N2O budget: a retrospective analysis 1500-1994. Global Biogeochem. Cycles 13: 1-8.
139. Kroeze C., Aerts R., Van Breemen N., van Dam D., van der Hoek K., Hofschreuder P., Hoosbeek M., de Klein J., Kros H., van Oene H., Oenema O., Tietema A., van der Veeren R. and de Vries W. 2003. Uncertainties in the fate of nitrogen. I: an overview of sources of uncertainty illustrated with a Dutch case study. Nutr. Cycl. Agroecosyst. 66(1): 43-69.
140. Laursen A.E. and Seitzinger S.P. 2002. Measurement of denitrification in rivers: an integrated, whole reach approach. Hydrobiologia 485: 67-81.
141. Lee K., Karl D.M., Wannikhof R. and Zhang J.-Z. 2002. Global estimate of net carbon production in the nitrate-depleted tropical and sub-tropical ocean. S. Geophys. Res. Lett. 29(19): Art. No. 1907.
142. Lelieveld J. and Dentener F. 2000. What controls tropospheric ozone? J. Geophys. Res. 105: 3531-3551.
143. Letelier R.M. and Karl D.M. 1996. Role of Trichodesmium spp. in the productivity of the subtropical north Pacific ocean. Mar. Ecol. Prog. Ser. 133: 263-273.
144. Letelier R.M. and Karl K.M. 1998. Trichodesmium spp. physiology and nutrient fluxes in the North Pacific subtropical gyre. Aquat. Microbiol. Ecol. 15: 265-276.
145. Levitus S., Antonov J.I., Boyer T.P. and Stephens C. 2000. Warming of the world ocean. Science 287(5461): 2225-2229.
146. Li C., Zhuang Y.H., Frolking S., Galloway J., Harriss R., Moore B. III, Schimel D. and Wang X.K. 2003. Modeling soil organic carbon change in croplands in China. Ecol. Appl. 13(2): 327-336.
147. Mackenzie F.T. 1994. Global climatic change: climatically important biogenic gases and feedbacks. In: Woodwell G.M. and Mackenzie F.T. (eds), Biotic Feedbacks in the Global Climatic System: Will the Warming Feed the Warming. Oxford University Press, UK, pp. 22-46.
148. Mackenzie F.T. 1998. Our Changing Planet: An Introduction to Earth System Science and Global Environmental Change, 2nd ed). Prentice-Hall, Upper Saddle River, NJ.
149. Martinelli L.A., Piccolo M.C., Townsend A.R., Vitousek P.M., Cuevas E., McDowell W., Robertson G.P., Santos O.C. and Treseder K. 1999. Nitrogen stable isotopic composition of leaves and soil: tropical versus temperate forests. Biogeochemistry 46: 45-65.
150. Matson P.A., McDowell W.H., Townsend A.R. and Vitousek P.M. 1999. The globalization of N deposition: ecosystem consequences in tropical environments. Biogeochemistry 46: 67-83.
151. Matson P., Lohse K. and Hall S. 2002. The globalization of nitrogen: consequences for terrestrial ecosystems. Ambio 31: 113-119.
152. Melillo J.M. and Cowling E.B. 2002. Reactive nitrogen and public policies for environmental protection. Ambio 31: 150-158.
153. Menard H. and Smith S. 1966. Hypsometry of ocean basin provinces. J. Geophys. Res. 71: 4305-4325.
154. Metz B., Davidson O., Swart R. and Pan J. 2001. Climate change 2001: mitigation. In: Metz B. et al. (eds), Third Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, New York.
155. Michaels A.F., Olson D., Sarmiento J.L., Ammerman J.W., Fanning K., Jahnke R., Knap A.H., Lipschultz F. and Prospero J.M. 1996. Inputs, losses and transformations of nitrogen and phosphorus in the pelagic North Atlantic Ocean. Biogeochemistry 35: 181-226.
156. Michaels A., Karl D. and Capone D. 2001. Element stoichiometry, new production and nitrogen fixation. Oceanography 14: 68-77.
157. Middleburg J., Soetaert K., Herman P. and Heip C. 1996. Denitrification in marine sediments: a model study. Global Biogeochem. Cycles 10: 661-673.
158. Moomaw W.R. 2002. Energy, industry and nitrogen: strategies for reducing reactive nitrogen emissions. Ambio 31: 184-189.
159. Mosier A.R., Guenzi W.D. and Schweizer E.E. 1986. Soil losses of dinitrogen and nitrous oxide from irrigated crops in Northeastern Colorado. Soil Sci. Soc. Am. J. 50: 344-348.
160. Mosier A.R., Bleken M.A., Chaiwanakupt P., Ellis E.C., Freney J.R., Howarth R.B., Matson P.A., Minami K., Naylor R., Weeks K. and Zhu Z.-L. 2001. Policy implications of human accelerated nitrogen cycling. Biogeochemistry 52: 281-320.
161. Mosier A.R., Doran J.W. and Freney J.R. 2002. Managing soil denitrification. J. Soil Water Conserv. 57: 505-513.
162. Nadelhoffer K.J. 2001. The impacts of nitrogen deposition on forest ecosystems. In: Follett R.F. and Hatfield J.L. (eds), Nitrogen in the Environment: Sources, Problems and Management. Elsevier, New York, pp. 311-331.
163. Nadelhoffer K.J., Aber J.D., Downs M.R., Fry B. and Melillo J.M. 1992. Biological sinks for nitrogen additions to a forested catchment. EPA/600/A-92/292.
164. 15N-labeled nitrate additions to a northern hardwood forest in eastern Maine, USA. Oecologia 103: 292-301.
165. 15N-enriched additions to an oak forest and a red pine plantation. Ecol. Appl. 9: 72-86.
166. Naqvi S.W.A., Noronha R.J., Shailaja M.S., Somasundar K. and Sen Gupta R. 1992. Some aspects of the nitrogen cycle in the Arabian Sea. In: Desai B.N. (ed.), Conference Papers: Oceanography of the Indian Ocean, International Symposium, Jan. 14-16 1991. National Institute of Oceanography, Goa (India), Oxford and IBH, New Delhi, pp. 285-322.
167. Naqvi S., Jayakumar D., Narvekar P., Naik H., Sarma V., D'Souza W., Joseph S. and George M. 2000. Increased marine production of N2O due to intensifying anoxia on the Indian continental shelf. Nature 408: 346-349.
168. NRC (National Research Council) 2000. Clean Coastal Waters: Understanding and Reducing the Effects of Nutrient Pollution. National Academy Press, Washington, DC.
169. Neff J.C., Holland E.A., Dentener F.J., McDowell W.H. and Russell K.M. 2002. The origin, composition and rates of organic nitrogen deposition. Biogeochemistry 57/58: 99-136.
170. Nevison C., Weiss R. and Erikson D. 1995. Global oceanic emissions of nitrous oxide. J. Geophys. Res. 100: 15809-15820.
171. Nixon S.W., Ammerman J.W., Atkinson P., Berounsky V.M., Billen G., Boicourt W.C., Boynton W.R., Church T.M., Ditoro D.M., Elmgren R., Garber J.H., Giblin A.E., Jahnke R.A., Owens N.J.P., Pilson M.E.Q. and Seitzinger S.P. 1996. The fate of nitrogen and phosphorus at the landsea margin of the North Atlantic Ocean. Biogeochemistry 35: 141-180.
172. Oenema O. and Pietrzak S. 2002. Nutrient management in food production: achieving agronomic and environmental targets. Ambio 31: 159-168.
173. Orcutt K.M. et al. 2001. A seasonal study of the significance of N2 fixation by Trichodesmium spp. at the Bermuda Atlantic Time-series Study (BATS) site. Deep-Sea Res. II 48: 1583-1608.
174. Paerl H.W. 1993. Emerging role of atmospheric nitrogen deposition in coastal eutrophication: biogeochemical and trophic perspectives. Can. J. Fish. Aquat. Sci. 50: 2254-2269.
175. Paul E.A. and Clark F.E. 1997. Soil Microbiology and Biochemistry. Academic Press, New York.
176. Peoples M.B., Herridge D.F. and Ladha J.K. 1995. Biological nitrogen fixation: an efficient source of nitrogen for sustainable agricultural production? Plant Soil 174: 3-28.
177. Peterjohn W.T. and Schlesinger W.H. 1991. Factors controlling denitrification in a Chihuahuan Desert ecosystem. Soil Sci. Soc. Am. J. 55: 1694-1701.
178. Prather M., Ehalt D., Dentener F., Derwent R., Dlugokencky E., Holland E., Isaksen I., Katima J., Kirchhoff V., Matson P., Midgley P. and Wang M. 2001. Atmospheric chemistry and greenhouse gases. In: Houghton J.T., Ding Y., Griggs D.J., Noguer M., van der Linden P.J., Dai X., Maskell K. and Johnson C.A. (eds), Climate change 2001: the scientific basis. Third Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, NY.
179. 15 N-fertilizer one and eight growing seasons after application to lodgepole pine in British Columbia. For. Ecol. Manage. 65: 219-229.
180. Prospero J.M., Barrett K., Church T., Dentener F., Duce R.A., Galloway J.N., Levy H., Moody J. and Quinn P. 1996. Atmospheric deposition of nutrients to the North Atlantic Basin. Biogeochemistry 35: 27-73.
181. Quinn P.K., Barrett K.J., Dentener F.J., Lipschultzt F and Six K.D. 1996. Estimation of the air/sea exchange of ammonia for the North Atlantic basin. Biogeochemistry 35: 275-304.
182. Rabalais N. 2002. Nitrogen in aquatic ecosystems. Ambio 31: 102-112.
183. Rasmussen L., Beier C., Van Breemen N., De Visser P., Kreutzer K., Schierl R., Matzner E. and Farrel E.P. 1990. Study on Acid Deposition Effects by Manipulating Forest Ecosystems, New Title: EXMAN-EXperimental MANipulation of Forest Ecosystems in Europe. Air Pollution Research Report 24, Commission of the European Communities, Brussels.
184. Redfield A.C. 1958. The biological control of chemical factors in the environment. Am. Sci. 46: 205-221.
185. Ridgwell A.J., Maslin M.A. and Watson A.J. 2002. Reduced effectiveness of terrestrial carbon sequestration due to an antagonistic response of ocean productivity. Geophys. Res. Lett. 29(6): Art. No.1095.
186. 15N mass spectrometry. FEMS Microbiol. Ecol. 18: 113-120.
187. Rolston D.E., Hoffman D.L. and Toy D.W. 1978. Field measurement of denitrification: I. Flux of N2 and N2O. Soil Sci. Soc. Am. J. 42: 863-869.
188. Rolston D.E., Sharpley A.M., Toy D.W. and Broadbent F.E. 1982. Field measurement of denitrification: III. Rates during irrigation cycles. Soil Sci. Soc. Am. J. 46: 289-296.
189. Roy R.N., Misra R.V. and Montanez A. 2002. Reduced reliance on mineral nitrogen, yet more food. Ambio 31: 177-183.
190. Sachs J.P. and Repeta D.J. 1999. Oligotrophy and nitrogen fixation during eastern Mediterranian sapropel events. Science 286: 2485-2488.
191. Saino T. 1977. Biological nitrogen fixation in the ocean with emphasis on the nitrogen fixing blue green alga, Trichodesmium, and its significance in the nitrogen cycle in the low latitude sea areas. Ph.D. Dissertation, Tokyo University, Japan.
192. Sanudo-Wilhelmy S.A., Kustka A.D., Gobler C.J., Hutchins D.A., Yang M., Lwiza K., Burns J., Capone D.G., Raven J.A. and Carpenter E.J. 2001. Phosphorus limitation of nitrogen fixation by Trichodesmium in the central Atlantic Ocean. Nature 411: 66-69.
193. Sarmiento J.L., Hughes T.M.C., Stouffer R.J. and Manabe S. 1998. Simulated response of the ocean carbon cycle to anthropogenic climate warming. Nature 393: 245-249.
194. Schlesinger W.H. 1991. Biogeochemistry: An Analysis of Global Change. Academic Press, New York.
195. Schlesinger W.H. and Andrews J.A. 2000. Soil respiration and the global carbon cycle. Biogeochemistry 48: 7-20.
196. Schlesinger W.H. and Hartley A.E. 1992. A global budget for atmospheric ammonia. Biogeochemistry 15: 191-211.
197. 15N tracer to simulate and track the fate of atmospherically deposited N in the coastal forests of the Waquoit Bay Watershed, Cape Cod, Massachusetts. Oecologia 112: 393-402.
198. Seitzinger S.P. 1988. Denitrification in freshwater and coastal marine ecosystems: ecological and geochemical importance. Limnol. Oceanogr. 33: 702-724.
199. Seitzinger S.P. and Giblin A.E. 1996. Estimating denitrification in North Atlantic continental shelf sediments. Biogeochemistry 35: 235-260.
200. Seitzinger S.P. and Kroeze C. 1998. Global distribution of nitrous oxide production and N inputs in freshwater and coastal marine ecosystems. Global Biogeochem. Cycles 12: 93-113.
201. Seitzinger S.P., Kroeze C. and Styles R.V. 2000. Global distribution of N2O emissions from aquatic systems: natural emissions and anthropogenic effects. Chemosphere: Global Change Sci. 2: 267-279.
202. Seitzinger S.P., Styles R.V., Boyer E., Alexander R.B., Billen G., Howarth R., Mayer B. and Van Breemen N. 2002. Nitrogen retention in rivers: model development and application to watersheds in the eastern US. Biogeochemistry 57/58: 199-237.
203. Shaffer G. and Ronner U. 1984. Denitrification in the Baltic Proper deep-water. Deep-Sea Res. A 31: 197-220.
204. Simpson J.R. and Freney J.R. 1988. Interacting processes in gaseous nitrogen loss from urea applied to flooded rice fields. In: Pushparajah E., Husin A. and Bachik A.T. (eds), Conference papers, Urea Technology and Utilization International Symposium. Malaysian Society of Soil Science, Kuala Lumpur, pp. 281-290.
205. Simpson J.R., Freney J.R., Wetselaar R., Muirhead W.A., Leuning R. and Denmead O.T. 1984. Transformations and losses of urea nitrogen after application to flooded rice. Aust. J. Agric. Res. 35: 189-200.
206. Smil V. 1994. Energy in World History. Westview Press
207. Boulder, CO. Smil V. 1995. Who will feed China? The China Quart. 143: 801-813.
208. Smil V. 1999. Nitrogen in crop production: an account of global flows. Global Biogeochem. Cycles 13: 647-662.
209. Smil V. 2000. Feeding the World: A Challenge for the Twenty-First Century. MIT Press, Cambridge, MA.
210. Smil V. 2001. Enriching the Earth. MIT Press, Cambridge, MA.
211. Smil V. 2002. Nitrogen and Food. Ambio 31: 126-131.
212. Smith B.D. 1995. The Emergence of Agriculture. Scientific American Library Series No. 24, Scientific American Library, (distributed by W.H. Freeman), New York.
213. Socolow R.H. 1999. Nitrogen management and the future of food: lessons from the management of energy and carbon. Proc. Natl. Acad. Sci. USA 96: 6001-6008.
214. Soderland R. and Rosswall T. 1982. The nitrogen cycles. In: Hutzinger O. (ed.), The Natural Environment and Biogeochemical Cycles. Springer Verlag, New York, pp. 61-81.
215. Somasundar K., Rajendran A., Dileep Kumar M. and Sen Gupta R. 1990. Carbon and nitrogen budgets of the Arabian Sea. Mar. Chem. 30: 363-377.
216. Stedman D.H. and Shetter R. 1983. The global budget of atmospheric nitrogen species. In: Schwartz S.S. (ed.), Trace Atmospheric Constituents: Properties, Transformations and Fates. J. Wiley, Hoboken, NJ, pp. 411-454.
217. Steinhart G.S., Likens G.E. and Groffman P.M. 2000. Denitrification in stream sediments of five northeastern (USA) streams. Verh. Internat. Verein. Limnol. 27: 1331-1336.
218. Suthhof A., Ittekkot V. and Gaye-Haake B. 2001. Millennial-scale oscillation of denitrification intensity in the Arabian Sea during the late Quaternary and its potential influence on atmospheric N2O and global climate. Global Biogeochem. Cycles 15: 637-649.
219. Sverdrup H., Johnson M. and Fleming R. 1942. The Oceans. Prentice-Hall, Upper Saddle River, NJ.
220. Tartowski S. and Howarth R.W. 2000. Nitrogen, nitrogen cycling. Encycl. Biodiv. 4: 377-388.
221. Thamdrup B. and Dalsgaard T. 2002. Production of N2 through anaerobic ammonium oxidation coupled to nitrate reduction in marine sediments. Appl. Environ. Microbiol. 68: 1312-1318.
222. Tilman D., Fargione J., Wolff B., D'Antonio C., Dobson A., Howarth R., Schindler D., Schlesinger W.H., Simberloff D. and Swackhamer D. 2001. Forecasting agriculturally driven global change. Science 292: 281-284.
223. Townsend A.R., Howarth R.H., Bazzaz F.A., Booth M.S., Cleveland C.C., Collinge S.K., Dobson A.P., Epstein P.R., Holland E.A., Keeney D.R., Mallin M.A., Rogers C.A., Wayne P. and Wolfe A.H. 2003. Human health effects of a changing global nitrogen cycle. Front Ecol. Environ. 1: 240-246.
224. van Aardenne J.A., Dentener F.J., Olivier J.G.J., Klijn Goldewijk C.G.M. and Lelieveld J. 2001. A 1-1 resolution dataset of historical anthropogenic trace gas emissions for the period 1890-1990. Global Biogeochem. Cycles 15: 909-928.
225. Van Breemen N., Boyer E.W., Goodale C.L., Jaworski N.A., Paustian K., Seitzinger S., Lajtha L.K., Mayer B., Van Dam D., Howarth R.W., Nadelhoffer K.J., Eve M. and Billen G. 2002. Where did all the nitrogen go? Fate of nitrogen inputs to large watersheds in the northeastern USA Biogeochemistry 57/58: 267-293.
226. Van Drecht G., Bouwman A.F., Knoop J.M., Meinardi C. and Beusen A. 2001. Global pollution of surface waters from point and nonpoint sources of nitrogen. Sci. World 1(S2): 632-641.
227. van Egmond N.D., Bresser A.H.M. and Bouwman A.F. 2002. The European nitrogen case. Ambio 31: 72-78.
228. Vitousek P.M. 1994. Potential nitrogen fixation during primary succession in Hawaii Volcanoes National Park. Biotropica 26: 234-240.
229. Vitousek P.M., Howarth R.W., Likens G.E., Matson P.A., Schindler D., Schlesinger W.H. and Tilman G.D. 1997. Human alteration of the global nitrogen cycle: causes and consequences. Issue Ecol. 1: 1-17.
230. Vitousek P.M., Hattenschwiler S., Olander L. and Allison S. 2002. Nitrogen and nature. Ambio 31: 97-101.
231. Vorosmarty C.J., Fekete B.M., Meybeck M. and Lammers R.B. 2000. Geomorphometeric attributes of the global system of rivers at 30-minute spatial resolution. J. Hydrol. 237: 17-39.
232. Wang L. 1987. Soybeans-The miracle bean of China. In: Wittwer S., Yu Y., Sun H. and Wang L. (eds), Feeding a Billion: Frontiers of Chinese Agriculture. Michigan State University Press, East Lansing.
233. Whelpdale D.M., Dorling S.R., Hicks B.B. and Summers P.W. 1996. Atmospheric processes. In: Whelpdale D.M. and Kaiser M.S. (eds), Global Acid Deposition Assessment WMO GAW Rept. No. 106, Geneva.
234. Whelpdale D.M., Summers P.W. and Sanhueza E. 1997. A global overview of atmospheric acid deposition flues. Environ. Monit. Assess. 48: 217-227.
235. Williams M.W., Baron J.S., Caine N., Sommerfeld R. and Sanford R. 1996. Nitrogen saturation in the Rocky Mountains. Environ. Sci. Technol. 30: 640-646.
236. Wilson T. 1978. Evidence for denitrification in aerobic pelagic sediments. Nature 274: 354-356.
237. Wittwer S., Yu Y., Sun H. and Wang L. 1987. Feeding a Billion: Frontiers of Chinese Agriculture. Michigan State University Press, East Lansing.
238. Wolfe A. and Patz J.A. 2002. Nitrogen and human health: direct and indirect impacts. Ambio 31: 120-125.
239. Wright R.F. and Rasmussen L. 1998. Introduction to N.I.TREX and EXMAN projects. For. Ecol. Manage. 101: 1-7.
240. Wu J., Sunda W., Boyle E. and Karl D. 2000. Phosphate depletion in the western North Atlantic Ocean. Science 289: 759-762.
241. Xing G.X. and Zhu Z.L. 2002. Regional nitrogen budgets for China and its major watersheds. Biogeochemistry 57-58: 405-427.
242. Yavitt J.B. and Fahey T.J. 1993. Production of methane and nitrous oxide by organic soils within a northern hardwood forest ecosystem. In: Oremland R.S. (ed.), Biogeochemistry of Global Change. Chapman and Hall, New York, pp. 261-277.
243. Zehr J.P., Carpenter E.J. and Villareal T.A. 2000. New perspectives on nitrogen-fixing microorganisms in subtropical and tropical open oceans. Trends Microbiol. 8: 68-73.
244. Zehr J. and Ward B.B. 2002. Nitrogen cycling in the ocean. New perspective on processes and paradigms. Appl. Environ. Microbiol. 68: 1015-1024.
245. Zehr J., Waterbury J., Turner P., Montoya J., Omoregie E., Steward G., Hansen A. and Karl D. 2001. Unicellular cyanobacteria fix N2 in the subtropical North Pacific Ocean. Nature 412: 635-638.
246. Zhang W.L., Tian Z.X., Zhang N. and Li X.Q. 1996. Nitrate pollution of groundwaters in northern China. Agric. Ecosyst. Environ. 59: 223-231.
247. Zheng X., Fu C., Xu X., Yan X., Chen G., Han S., Huang Y. and Hu F. 2002. The Asian nitrogen case. Ambio 31: 79-87.
248. Zhu Z.L., Cai G.X., Simpson J.R., Zhang S.L., Chen D.L., Jackson A.V. and Freney J.R. 1989. Processes of nitrogen loss from fertilizers applied to flooded rice fields on a calcareous soil in North-Central China. Fert. Res. 18: 101-115.
249. Zobell C. and Anderson D.Q. 1943. Observations on the multiplication of bacteria in different volumes of stored sea water and the influence of oxygen tension and solid surfaces. J. Bacteriol. 46: 324-342.