Nitrogen News December 2009 Nitrogen News is a summary of recent publications, news and reports related to the cycling, effects and management of nitrogen. Prepared by Mary O’Brien and Jana Compton. Contact Jana Compton with any questions (Compton.jana@epa.gov) Please note: Most of these links are available to EPA staff through library access – not all links will be available to folks outside EPA, depending on your access to specific journals and websites. Issue 7, December 2009 News Berger, Matthew EPA cracking down on urban and agricultural runoff blamed for dead zones SolveClimate, November 13, 2009 http://solveclimate.com/blog/20091113/epa-cracking-down-urban-and-agricultural-runoff-blamed-dead-zones Special Issues Catchment management and coastal water quality of the Great Barrier Reef Marine and Freshwater Research, 60(11), 2009. ISSN 1323-1650 http://www.publish.csiro.au/nid/127/issue/5017.htm Articles Adair, E. Carol, Peter B. Reich, Sarah E. Hobbie, and Johannes M. H. Knops. Interactive effects of time, CO2, N, and diversity on total belowground carbon allocation and ecosystem carbon storage in a grassland community Ecosystems, 12(6): 1037-1052, September 2009. ISSN 1432-9840. http://dx.doi.org/10.1007/s10021-009-9278-9 Aitkenhead-Peterson, J. A., M. K. Steele, N. Nahar, and K. Santhy. Dissolved organic carbon and nitrogen in urban and rural watersheds of south-central Texas: land use and land management influences Biogeochemistry, 96(1-3): 119-129, December 2009. ISSN 0168-2563. http://dx.doi.org/10.1007/s10533-009-9348-2 Allen, D. E., D. S. Mendham, Bhupinderpal-Singh, A. Cowie, W. Wang, R. C. Dalal, and R. J. Raison. Nitrous oxide and methane emissions from soil are reduced following afforestation of pasture lands in three contrasting climatic zones Australian Journal of Soil Research, 47(5): 443-458, 2009. ISSN 0004-9573.

http://www.publish.csiro.au/nid/84/paper/SR08151.htm Alonso, Alvaro and Julio A. Camargo. Effects of pulse duration and post-exposure period on the nitrite toxicity to a freshwater amphipod Ecotoxicology And Environmental Safety, 72(7): 2005-2008, October 2009. ISSN 0147-6513. http://dx.doi.org/10.1016/j.ecoenv.2009.06.008 ApSimon, Helen, Markus Amann, Stefan Astrom, and Tim Oxley. Synergies in addressing air quality and climate change Climate Policy, 9(6): 669-680, November 2009. ISSN 1469-3062 http://dx.doi.org/10.3763/cpol.2009.0678 Arismendez, Sandra S., Hae-Cheol Kim, Jorge Brenner, and Paul A. Montagna. Application of watershed analyses and ecosystem modeling to investigate land-water nutrient coupling processes in the Guadalupe Estuary, Texas Ecological Informatics, 4(4): 243-253, September 2009. ISSN 1574-9541. http://dx.doi.org/10.1016/j.ecoinf.2009.07.002 Armitage, Anna R. and James W. Fourqurean. Stable isotopes reveal complex changes in trophic relationships following nutrient addition in a coastal marine ecosystem Estuaries And Coasts, 32(6): 1152-1164, November 2009. ISSN 1559-2723. http://dx.doi.org/10.1007/s12237-009-9219-z Batley, Graeme E. and Stuart L. Simpson. Development of guidelines for ammonia in estuarine and marine water systems Marine Pollution Bulletin, 58(10): 1472-1476, October 2009. ISSN 0025-326X. http://dx.doi.org/10.1016/j.marpolbul.2009.06.005 Beier, Claus, Bridget A. Emmett, Albert Tietema, Inger K. Schmidt, Josep Penuelas, Edit Kovacs Lang, Pierpaolo Duce, Paolo De Angelis, Antonie Gorissen, Marc Estiarte, Giovanbattista D. de Dato, Alwyn Sowerby, Gyoergy Kroeel-Dulay, Eszter Lellei-Kovacs, Olevi Kull, Pille Mand, Henning Petersen, Peter Gjelstrup, and Donatella Spano. Carbon and nitrogen balances for six shrublands across Europe Global Biogeochemical Cycles, 23: GB4008, October 15, 2009. ISSN 0886-6236. http://dx.doi.org/10.1029/2008GB003381 Bernatowicz, Waldemar, Annett Weiss, and Joerg Matschullat. Linking biological and physicochemical water quality Environmental Monitoring And Assessment, 159(1-4): 311-330, December 2009. ISSN 0167-6369. http://dx.doi.org/10.1007/s10661-008-0631-9 Bidigare, Robert R., Fei Chai, Michael R. Landry, Roger Lukas, Cecelia C. S. Hannides, Stephanie J. Christensen, David M. Karl, Lei Shi, and Yi Chao.

Subtropical ocean ecosystem structure changes forced by North Pacific climate variations Journal of Plankton Research, 31(10): 1131-1139, October 2009. ISSN 0142-7873. http://dx.doi.org/10.1093/plankt/fbp064 Blake, Timothy W. and John A. Downing. Measuring atmospheric nutrient deposition to inland waters: Evaluation of direct methods Limnology and Oceanography-Methods, 7: 638-647, September 2009. ISSN 1541-5856. http://www.aslo.org/lomethods/locked/2009/0638.pdf Blattel, Christopher R., Karl W. J. Williard, Sara G. Baer, Jon E. Schoonover, and James I. Zaczek. Ground water nitrogen dynamics in giant cane and forest riparian buffers Castanea, 74(3): 259-270, September 2009. ISSN 0008-7475. http://www.bioone.org/doi/pdf/10.2179/08-037R2.1 Buda, Anthony R. and David R. DeWalle. Dynamics of stream nitrate sources and flow pathways during stormflows on urban, forest and agricultural watersheds in central Pennsylvania, USA Hydrological Processes, 23(23): 3292-3305, November 15, 2009. ISSN 0885-6087. http://dx.doi.org/10.1002/hyp.7423 Bump, Joseph K., Rolf O. Peterson, and John A.Vucetich. Wolves modulate soil nutrient heterogeneity and foliar nitrogen by configuring the distribution of ungulate carcasses Ecology, 90(11): 3159-3167, November 2009. ISSN 0012-9658. http://dx.doi.org/10.1890/09-0292.1 Cabezas, A., F. A. Comin, and D. E. Walling. Changing patterns of organic carbon and nitrogen accretion on the middle Ebro floodplain (NE Spain) Ecological Engineering, 35(10): 1547-1558, October 2009. ISSN 0925-8574. http://dx.doi.org/10.1016/j.ecoleng.2009.07.006 Camarero, Lluis, Michela Rogora, Rosario Mosello, Nicholas J. Anderson, Alberto Barbieri, Ivan Botev, Martin Kernan, Jiri Kopacek, Atte Korhola, Andre F. Lotter, Gregor Muri, Carmen Postolache, Evzen Stuchlik, Hansjoerg, Thies, and Richard F. Wright. Regionalisation of chemical variability in European mountain lakes Freshwater Biology, 54(12): 2452-2469, December 2009. ISSN 0046-5070 http://dx.doi.org/10.1111/j.1365-2427.2009.02296.x Carnahan, E. A., A. M. Hoare, P. Hallock, B. H. Lidz, and C. D. Reich. Foraminiferal assemblages in Biscayne Bay, Florida, USA: Responses to urban and agricultural influence in a subtropical estuary Marine Pollution Bulletin, 59(8-12 Sp. Iss.): 221-233, 2009. ISSN 0025-326X http://dx.doi.org/10.1016/j.marpolbul.2009.08.008

Castro, Paula, Ivan Valiela, and Helena Freitas. Sediment pool and plant content as indicators of nitrogen regimes in Portuguese estuaries Journal of Experimental Marine Biology and Ecology, 380(1-2): 1-10, November 15, 2009. ISSN 0022-0981 http://dx.doi.org/10.1016/j.jembe.2009.09.003 Catalan, J., C. J. Curtis, and M. Kernan. Remote European mountain lake ecosystems: Regionalisation and ecological status Freshwater Biology, 54(12): 2419-2432, December 2009. ISSN 0046-5070 http://dx.doi.org/10.1111/j.1365-2427.2009.02326.x Chen, DingJiang, Jun Lu, YeNa Shen, Randy A. Dahlgren, and ShuQuan Jin. Estimation of critical nutrient amounts based on input-output analysis in an agriculture watershed of eastern China Agriculture Ecosystems & Environment, 134(3-4): 159-167, December 2009. ISSN 0167-8809. http://dx.doi.org/10.1016/j.agee.2009.06.011 Chipperfield, Martyn. Atmospheric science: Nitrous oxide delays ozone recovery Nature Geoscience, 2(11): 742-743, November 2009. ISSN 1752-0894. http://dx.doi.org/10.1038/ngeo678 Claessens, Luc, Christina L. Tague, Lawrence E. Band, Peter M. Groffman, and Stephen T. Kenworth. Hydro-ecological linkages in urbanizing watersheds: An empirical assessment of in-stream nitrate loss and evidence of saturation kinetics Journal of Geophysical Research-Biogeosciences, 114: G04016, December 3, 2009. ISSN 0148-0227. http://dx.doi.org/10.1029/2009JG001017 Costello, Christine, W. Michael Griffin, Amy E. Landis, and H. Scott Matthews. Impact of biofuel crop production on the formation of hypoxia in the Gulf of Mexico Environmental Science & Technology, 43(20): 7985-7991, October 15, 2009. ISSN 0013-936X. http://dx.doi.org/10.1021/es9011433 Costello, David M. and Gary A. Lamberti. Biological and physical effects of non-native earthworms on nitrogen cycling in riparian soils Soil Biology & Biochemistry, 41(10): 2230-2235, October 2009. ISSN 0038-0717. http://dx.doi.org/10.1016/j.soilbio.2009.08.007 Creed, I. F. and F. D. Beall. Distributed topographic indicators for predicting nitrogen export from headwater catchments Water Resources Research, 45: W10407, October 7, 2009. ISSN 0043-1397. http://dx.doi.org/10.1029/2008WR007285

Curtis, C. J., S. Juggins, G. Clarke, R. W. Battarbee, M. Kernan, J. Catalan, R. Thompson, and M. Posch. Regional influence of acid deposition and climate change in European mountain lakes assessed using diatom transfer functions Freshwater Biology, 54(12): 2555-2572, December 2009. ISSN 0046-5070. http://dx.doi.org/10.1111/j.1365-2427.2009.02317.x Danielescu, Serban, Kerry T. B. MacQuarrie, and Russell N. Faux. The integration of thermal infrared imaging, discharge measurements and numerical simulation to quantify the relative contributions of freshwater inflows to small estuaries in Atlantic Canada Hydrological Processes, 23(20): 2847-2859, September 30, 2009. ISSN 0885-6087. http://dx.doi.org/10.1002/hyp.7383 David, M., B. Loubet, P. Cellier, M. Mattsson, J. K. Schjoerring, E, Nemitz, R. Roche, M. Riedo, and M. A. Sutton. Ammonia sources and sinks in an intensively managed grassland canopy Biogeosciences, 6(9): 1903-1915, 2009. ISSN 1726-4170. http://www.biogeosciences.net/6/1903/2009/bg-6-1903-2009.pdf Davis, John M., Amy D. Rosemond, Susan L. Eggert, Wyatt F. Cross, and J. Bruce Wallace. Long-term nutrient enrichment decouples predator and prey production Proceedings of the National Academy of Sciences, Published online before print December 14, 2009. ISSN 0027-8424. http://dx.doi.org/10.1073/pnas.0908497107 Destouni, Georgia and Amelie Darracq. Nutrient cycling and N2O emissions in a changing climate: the subsurface water system role Environmental Research Letters, 4(3): 035008, July-September 2009. ISSN 1748-9326. http://dx.doi.org/10.1088/1748-9326/4/3/035008 Elser, James J., Marcia Kyle, Laura Steger, Koren R. Nydick, and Jill S. Baron. Nutrient availability and phytoplankton nutrient limitation across a gradient of atmospheric nitrogen deposition Ecology, 90(11): 3062-3073, November 2009. ISSN 0012-9658. http://dx.doi.org/10.1890/08-1742.1 Elser, James J., Tom Andersen, Jill S. Baron, Ann-Kristin Bergström, Mats Jansson, Marcia Kyle, Koren R. Nydick, Laura Steger, and Dag O. Hessen. Shifts in lake N:P Stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition Science, 326(5954): 835-837, November 6, 2009. ISSN 1095-9203. http://dx.doi.org/10.1126/science.1176199

Enowashu, Esther, Christian Poll, Norbert Lamersdorf, and Ellen Kandeler. Microbial biomass and enzyme activities under reduced nitrogen deposition in a spruce forest soil Applied Soil Ecology, 43(1): 11-21, September 2009. ISSN 0929-1393. http://dx.doi.org/10.1016/j.apsoil.2009.05.003 Enwright, Nicholas and Paul F. Hudak. Spatial distribution of nitrate and related factors in the High Plains Aquifer, Texas Environmental Geology, 58(7): 1541-1548, October 2009. ISSN 0943-0105. http://dx.doi.org/10.1007/s00254-008-1655-8 Fagerberg, Tony, Per Carlsson, Mikael Lundgren. A large molecular size fraction of riverine high molecular weight dissolved organic matter (HMW DOM) stimulates growth of the harmful dinoflagellate Alexandrium minutum Harmful Algae, 8(6): 823-831, September 2009. ISSN 1568-9883. http://dx.doi.org/10.1016/j.hal.2009.02.002 Fan, Jian-Ling, Zheng-Yi Hu, Ti-Jian Wang, Jing Zhou, Cong-yang-hui Wu, and Xu Xia. Atmospheric inorganic nitrogen deposition to a typical red soil forestland in southeastern China Environmental Monitoring And Assessment, 159(1-4): 241-253, December 2009. ISSN 0167-6369. http://dx.doi.org/10.1007/s10661-008-0626-6 Ferron, S., F. Alonso-Perez, E. Anfuso, F. J. Murillo, T. Ortega, C. G. Castro, and J. M. Forja. Benthic nutrient recycling on the northeastern shelf of the Gulf of Cadiz (SW Iberian Peninsula) Marine Ecology-Progress Series, 390: 79-95, 2009. ISSN 0171-8630. http://dx.doi.org/10.3354/meps08199 Fowler, D., K. Pilegaard, M. A. Sutton, P. Ambus, M. Raivonen, J. Duyzer, D. Simpson, H. Fagerli, S. Fuzzi, J. K. Schjoerring, C. Granier, A. Neftel, I. S. A. Isaksen, P. Laj, M. Maione, P. S. Monks, J. Burkhardt, U. Daemmgen, J. Neirynck, E. Personne, R. Wichink-Kruit, K. Butterbach-Bahl, C. Flechard, J. P. Tuovinen, M. Coyle, G. Gerosa, B. Loubet, N. Altimir, L. Gruenhage, C. Ammann, S. Cieslik, E. Paoletti, T. N. Mikkelsen, H. Ro-Poulsen, P. Cellier, N. N. Cape, L. Horvath, F. Loreto, Ue Niinemets, P. I. Palmer, J. Rinne, P. Misztal, E. Nemitz, D. Nilsson, S. Pryor, M. W. Gallagher, T. Vesala, U. Skiba, N. Brueggemann, S. Zechmeister-Boltenstern, J. Williams, C. O'Dowd, M. C. Facchini, G. de Leeuw, A. Flossman, N. Chaumerliac, and J. W. Erisman. Atmospheric composition change: Ecosystems-Atmosphere interactions Atmospheric Environment, 43(33 Sp. Iss.): 5193-5267, October 2009. ISSN 1352-2310. http://dx.doi.org/10.1016/j.atmosenv.2009.07.068 Frankovich, Thomas A., Anna R. Armitage, Ania H. Wachnicka, Evelyn E. Gaiser, and James W. Fourqurean. Nutrient effects on seagrass epiphyte community structure in Florida Bay

Journal of Phycology, 45(5): 1010-1020, October 2009. ISSN 0022-3646. http://dx.doi.org/10.1111/j.1529-8817.2009.00745.x Freing, A., D. W. R. Wallace, T. Tanhua, S. Walter, and H. W. Bange. North Atlantic production of nitrous oxide in the context of changing atmospheric levels Global Biogeochemical Cycles, 23: GB4015, November 3, 2009. ISSN 0886-6236. http://dx.doi.org/10.1029/2009GB003472 Fujimaki, Reiji, Akiko Sakai, and Nobuhiro Kaneko. Ecological risks in anthropogenic disturbance of nitrogen cycles in natural terrestrial ecosystems Ecological Research, 24(5): 955-964, September 2009. ISSN 0912-3814. http://dx.doi.org/10.1007/s11284-008-0578-x Gascon, S., D. Boix, J. Sala, and X. D. Quintana. Patterns in size and species diversity of benthic macroinvertebrates in Mediterranean salt marshes Marine Ecology-Progress Series, 391: 21-32, 2009. ISSN 0171-8630. http://dx.doi.org/10.3354/meps08151 Gihring, Thomas M., Andy Canion, Ashley Riggs, Markus Huettel, and Joel E. Kostka. Denitrification in shallow, sublittoral Gulf of Mexico permeable sediments Limnology and Oceanography, 55(1): 43-54, January 2010. ISSN 0024-3590. http://aslo.org/lo/pdf/vol_55/issue_1/0043.pdf Goldblatt, Colin, Mark W. Claire, Timothy M. Lenton, Adrian J. Matthews, Andrew J. Watson, and Kevin J. Zahnle. Nitrogen-enhanced greenhouse warming on early Earth Nature Geoscience, 2(12): 891-896, December 2009. ISSN 1752-0894. http://dx.doi.org/10.1038/NGEO692 Groffman, Peter M., Janet P. Hardy, Melany C. Fisk, Timothy J. Fahey, and Charles T. Driscoll. Climate variation and soil carbon and nitrogen cycling processes in a northern hardwood forest Ecosystems, 12(6): 927-943, September 2009. ISSN 1432-9840. http://dx.doi.org/10.1007/s10021-009-9268-y Hall, Robert O., Jr., Michelle A. Baker, Christopher D. Arp, and Benjamin J. Koch. Hydrologic control of nitrogen removal, storage, and export in a mountain stream Limnology and Oceanography, 54(6): 2128-2142, November 2009. ISSN 0024-3590. http://aslo.org/lo/pdf/vol_54/issue_6/2128.pdf Hasegawa, D., M. R. Lewis, and A. Gangopadhyay. How islands cause phytoplankton to bloom in their wakes Geophysical Research Letters, 36, L20605, October 21, 2009. ISSN 0094-8276. http://dx.doi.org/10.1029/2009GL039743

Hedin, Lars O., E. N. Jack Brookshire, Duncan N. L. Menge, and Alexander R. Barron. The nitrogen paradox in tropical forest ecosystems Annual Review of Ecology Evolution And Systematics, 40: 613-635, 2009. ISSN 1543-592X. http://arjournals.annualreviews.org/doi/abs/10.1146/annurev.ecolsys.37.091305.110246 Helming, John and Stijn Reinhard. Modelling the economic consequences of the EU Water Framework Directive for Dutch agriculture Journal of Environmental Management, 91(1): 114-123, October 2009. ISSN 0301-4797. http://dx.doi.org/10.1016/j.jenvman.2009.07.002 Hensen, A., E. Nemitz, M. J. Flynn, A. Blatter, S. K. Jones, L. L. Sorensen, B. Hensen, S. C. Pryor, B. Jensen, B., R. P. Otjes, J. Cobussen, B. Loubet, J. W. Erisman, M. W. Gallagher, A. Neftel, and M. A. Sutton. Inter-comparison of ammonia fluxes obtained using the Relaxed Eddy Accumulation technique Biogeosciences, 6(11): 2575-2588, 2009. ISSN 1726-4170. http://www.biogeosciences.net/6/2575/2009/bg-6-2575-2009.pdf Hofmeister, Jenyk, Jan Hosek, Martin Modry, and Jan Rolecek. The influence of light and nutrient availability on herb layer species richness in oak-dominated forests in central Bohemia Plant Ecology, 205(1): 57-75, November 2009. ISSN 1385-0237. http://dx.doi.org/10.1007/s11258-009-9598-z Holtgrieve, Gordon W., Daniel E. Schindler, and Peter K. Jewett. Large predators and biogeochemical hotspots: brown bear (Ursus arctos) predation on salmon alters nitrogen cycling in riparian soils Ecological Research, 24(5): 1125-1135, September 2009. ISSN 0912-3814. http://dx.doi.org/10.1007/s11284-009-0591-8 Hopfensperger, Kristine N., Christine M. Gault, and Peter M. Groffman. Influence of plant communities and soil properties on trace gas fluxes in riparian northern hardwood forests Forest Ecology And Management, 258(9): 2076-2082, October 10, 2009. ISSN 0378-1127. http://dx.doi.org/10.1016/j.foreco.2009.08.004 Huang, Zhihua. Bin Xue, and Yong Pang. Simulation on stream flow and nutrient loadings in Gucheng Lake, Low Yangtze River Basin, based on SWAT model Quaternary International, 208: 109-115, October 15, 2009. ISSN 1040-6182. http://dx.doi.org/10.1016/j.quaint.2008.12.018 Hudon, Christiane, Antonella Cattaneo, and Pierre Gagnon. Epiphytic cyanobacterium Gloeotrichia pisum as an indicator of nitrogen depletion

Aquatic Microbial Ecology, 57(2): 191-202, 2009. ISSN 0948-3055. http://dx.doi.org/10.3354/ame01344 Hunter, Rachael, Robert Lane, John Day, Joel Lindsey, Jason Day, and Montgomery Hunter. Nutrient removal and loading rate analysis of louisiana forested wetlands assimilating treated municipal effluent Environmental Management, 44(5): 865-873, November 2009. ISSN 0364-152X. http://dx.doi.org/10.1007/s00267-009-9348-y Ileva, Nina Y., Hideaki Shibata, Fuyuki Satoh, Kaichiro Sasa, and Hiroshi Ueda. Relationship between the riverine nitrate-nitrogen concentration and the land use in the Teshio River watershed, North Japan Sustainability Science, 4(2): 189-198, October 2009. ISSN 1862-4065. http://dx.doi.org/10.1007/s11625-009-0081-5 Jacob, Mascha, Nadine Weland, Christian Platner, Matthias Schaefer, Christoph Leuschner, and Frank M. Thomas. Nutrient release from decomposing leaf litter of temperate deciduous forest trees along a gradient of increasing tree species diversity Soil Biology & Biochemistry, 41(10): 2122-2130, October 2009. ISSN 0038-0717 http://dx.doi.org/10.1016/j.soilbio.2009.07.024 Janzen, H. H. Long-term ecological sites: musings on the future, as seen (dimly) from the past Global Change Biology, 15(11): 2770-2778, November 2009. ISSN 1354-1013. http://dx.doi.org/10.1111/j.1365-2486.2009.01971.x Johnson, Laura T., Jennifer L. Tank, and Clay P. Arango. The effect of land use on dissolved organic carbon and nitrogen uptake in streams Freshwater Biology, 54(1): 2335-2350, November 2009. ISSN 0046-5070. http://dx.doi.org/10.1111/j.1365-2427.2009.02261.x Jones, Diane and Chris L. J. Frid. Altering intertidal sediment topography: effects on biodiversity and ecosystem functioning Marine Ecology-An Evolutionary Perspective, 30(Suppl. 1): 83-96, October 2009. ISSN 0173-9565. http://dx.doi.org/10.1111/j.1439-0485.2009.00306.x Jones, Michael G., R. Willem Vervoort, and Julie Cattle. Nutrient losses under simulated rainfall from pasture plots in the Great Lakes District, New South Wales Australian Journal of Soil Research, 47(6): 555-564, 2009. ISSN 0004-9573. http://dx.doi.org/10.1071/SR08116 Karaouzas, Ioannis, Elias Dimitriou, Nikolaos Skoulikidis, Konstantinos Gritzalis, and Eva Colombari.

Linking hydrogeological and ecological tools for an integrated river catchment assessment Environmental Modeling & Assessment, 14(6): 677-689, December 2009. ISSN 1420-2026. http://dx.doi.org/10.1007/s10666-008-9183-1 Katsuyama, M., H. Shibata, T. Yoshioka, T. Yoshida, A. Ogawa, and N. Ohte. Applications of a hydro-biogeochemical model and long-term simulations of the effects of logging in forested watersheds Sustainability Science, 4(2): 179-188, October 2009. ISSN 1862-4065. http://dx.doi.org/10.1007/s11625-009-0079-z Klocker, Carolyn A., Sujay S. Kaushal, Peter M. Groffman, Paul M. Mayer, and Raymond P. Morgan. Nitrogen uptake and denitrification in restored and unrestored streams in urban Maryland, USA Aquatic Sciences, 71(4): 411-424, December 2009. ISSN 1015-1621. http://dx.doi.org/10.1007/s00027-009-0118-y Kniffin, Maribeth, Christopher Neill, Richard McHorney, and George Gregory. Nutrient limitation of periphyton and phytoplankton in Cape Cod coastal plain ponds Northeastern Naturalist, 16(3): 395-408, 2009. ISSN 1092-6194. http://www.bioone.org/doi/pdf/10.1656/045.016.n307 Koop-Jakobsen, Ketil and Anne E. Giblin. New approach for measuring denitrification in the rhizosphere of vegetated marsh sediments Limnology And Oceanography-Methods, 7: 626-637, September 2009. ISSN 1541-5856. http://www.aslo.org/lomethods/locked/2009/0626.pdf Kozlowski, Gregor and Sophie Vallelian. Eutrophication and endangered aquatic plants: an experimental study on Baldellia ranunculoides (L.) Parl. (Alismataceae) Hydrobiologia, 635(1): 181-187, November 2009. ISSN 0018-8158. http://dx.doi.org/10.1007/s10750-009-9910-x Kurzyca, Iwona, Adam Choinski, Alfred Kaniecki, and Jerzy Siepak. Water ecosystems affected by human impact within the protected area of the Tatra National Park (Poland) Oceanological And Hydrobiological Studies, 38(3): 77-86, September 2009. ISSN 1730-413X. http://dx.doi.org/10.2478/v10009-009-0034-4 Lair, G. J., F. Zehetner, M. Fiebig, M. H. Gerzabek, C. A. M. van Gestel, T. Hein, S. Hohensinner, P. Hsu, K. C. Jones, G. Jordan, A. A. Koelmans, A. Poot, D. M. E. Slijkerman, K. U. Totsche, E. Bondar-Kunze, and J. A. C. Barth. How do long-term development and periodical changes of river-floodplain systems affect the fate of contaminants? Results from European rivers Environmental Pollution, 157(12): 3336-3346, December 2009. ISSN 0269-7491.

http://dx.doi.org/10.1016/j.envpol.2009.06.004 Lassaletta, Luis, Hector Garcia-Gomez, Benjamin S. Gimeno, and Jose V. Rovira. Agriculture-induced increase in nitrate concentrations in stream waters of a large Mediterranean catchment over 25 years (1981-2005) Science of the Total Environment, 407(23): 6034-6043, November 15, 2009. ISSN 0048-9697. http://dx.doi.org/10.1016/j.scitotenv.2009.08.002 Lee, Yong-Woo, Guebuem Kim, Weol-Ae Lim, and Dong-Woon Hwang. A relationship between submarine groundwater-borne nutrients traced by Ra isotopes and the intensity of dinoflagellate red-tides occurring in the southern sea of Korea Limnology and Oceanography, 55(1): 1-10, January 2010. ISSN 0024-3590. http://aslo.org/lo/pdf/vol_55/issue_1/0001.pdf Leonardi, Marcella, Filippo Azzaro, Maurizio Azzaro, Gabriella Caruso, Monique Mancuso, Luis Salvador Monticelli, Giovana Maimone, Rosabruna La Ferla, Francesco Raffa, and Renata Zaccone. A multidisciplinary study of the Cape Peloro brackish area (Messina, Italy): characterisation of trophic conditions, microbial abundances and activities Marine Ecology-An Evolutionary Perspective, 30(Suppl. 1): 33-42, October 2009. ISSN 0173-9565 http://dx.doi.org/10.1111/j.1439-0485.2009.00320.x Liu, Kun and David Crowley. Nitrogen deposition effects on carbon storage and fungal:bacterial ratios in coastal sage scrub soils of southern California Journal of Environmental Quality, 38(6): 2267-2272, November-December 2009. ISSN 0047-2425. http://dx.doi.org/10.2134/jeq2008.0387 Liu, S. M., G.–H. Hong, J. Zhang, X. W. Ye, and X. L. Jiang. Nutrient budgets for large Chinese estuaries Biogeosciences, 6(10): 2245-2263, 2009. ISSN 1726-4170. http://www.biogeosciences.net/6/2245/2009/bg-6-2245-2009.pdf Lohse, Kathleen A., Paul D. Brooks, Jennifer C. McIntosh, Thomas Meixner, and Travis E. Huxman. Interactions between biogeochemistry and hydrologic systems Annual Review of Environment and Resources, 34: 65-96, 2009. ISSN 1543-5938. http://dx.doi.org/10.1146/annurev.environ.33.031207.111141 Lourey, M. J. and H. Kirkman. Short-lived dissolved nitrate pulses in a shallow Western Australian coastal lagoon Marine and Freshwater Research, 60(10): 1068-1080, 2009. ISSN 1323-1650. http://dx.doi.org/10.1071/MF08298

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Rosenbauer, Robert J., Peter W. Swarzenski, Carol Kendall, William H. Orem, Frances D. Hostettler, and Mark E. Rollog. A carbon, nitrogen, and sulfur elemental and isotopic study in dated sediment cores from the Louisiana Shelf Geo-Marine Letters, 29(6): 415-429, December 2009. ISSN 0276-0460. http://dx.doi.org/10.1007/s00367-009-0151-9 Rothenberger, Meghan B., JoAnn M. Burkholder, and Thomas R. Wentworth. Use of long-term data and multivariate ordination techniques to identify environmental factors governing estuarine phytoplankton species dynamics Limnology and Oceanography, 54(6): 2107- 2127, November 2009. ISSN 0024-3590. http://aslo.org/lo/pdf/vol_54/issue_6/2107.pdf Rozemeijer, J. C., H. P. Broers, F. C. van Geer, and M. F. P. Bierkens. Weather-induced temporal variations in nitrate concentrations in shallow groundwater Journal of Hydrology, 378(1-2): 119-127, November 15, 2009. ISSN 0022-1694. http://dx.doi.org/10.1016/j.jhydrol.2009.09.011 Schilling, Keith E. and Peter Jacobson. Water uptake and nutrient concentrations under a floodplain oak savanna during a non-flood period, lower Cedar River, Iowa Hydrological Processes, 23(21): 3006-3016, October 15, 2009. ISSN 0885-6087. http://dx.doi.org/10.1002/hyp.7403 Schilling, Keith E. and Calvin F. Wolter. Modeling nitrate-nitrogen load reduction strategies for the Des Moines River, Iowa using SWAT Environmental Management, 44(4): 671-682, October 2009. ISSN 0364-152X. http://dx.doi.org/10.1007/s00267-009-9364-y Schreiber, Frank, Birte Loeffler, Lubos Polerecky, Marcel M. M. Kuypers, and Dirk de Beer. Mechanisms of transient nitric oxide and nitrous oxide production in a complex biofilm ISME Journal, 3(11): 1301-1313, November 2009. ISSN 1751-7362. http://dx.doi.org/10.1038/ismej.2009.55 Schulze, E. D., S. Luyssaert, P. Ciais, A. Freibauer, I. A. Janssens, J. F. Soussana, P. Smith, J. Grace, I. Levin, B. Thiruchittampalam, M. Heimann, A. J. Dolman, R. Valentini, P. Bousquet, P. Peylin, W. Peters, C. Roedenbeck, G. Etiope, N. Vuichard, M. Wattenbach, G. J. Nabuurs, Z. Poussi, J. Nieschulze, and J. H. Gash. Importance of methane and nitrous oxide for Europe's terrestrial greenhouse-gas balance Nature Geoscience, 2(12): 842-850, December 2009. ISSN 1752-0894. http://dx.doi.org/10.1038/ngeo686 Sharp, Jonathan H., Kohei Yoshiyama, Alexander E. Parker, Matthew C. Schwartz, Susan E. Curless, Allison Y. Beauregard, Justin E. Ossolinski, and Allen R. Davis.

A biogeochemical view of estuarine eutrophication: seasonal and spatial trends and correlations in the Delaware Estuary Estuaries and Coasts, 32(6): 1023-1043, November 2009. ISSN 1559-2723. http://dx.doi.org/10.1007/s12237-009-9210-8 Shields, F. Douglas, Jr., Sam Testa III, and Charles M. Cooper. Nitrogen and phosphorus levels in the Yazoo River Basin, Mississippi Ecohydrology, 2(3 Sp. Iss): 270-278, September 2009. ISSN 1936-0584. http://dx.doi.org/10.1002/eco.49 Smiley, Peter C., Jr., Robert B. Gillespie, Kevin W. King, and Chi-hua Huang. Management implications of the relationships between water chemistry and fishes within channelized headwater streams in the midwestern United States Ecohydrology, 2(3 Sp. Iss.): 294-302, September 2009. ISSN 1936-0584. http://dx.doi.org/10.1002/eco.51 Smith, Richard L., John Karl Boehlke, Deborah A. Repert, and Charles P. Hart. Nitrification and denitrification in a midwestern stream containing high nitrate: in situ assessment using tracers in dome-shaped incubation chambers Biogeochemistry, 96(1-3): 189-208, December 2009. ISSN 0168-2563. http://dx.doi.org/10.1007/s10533-009-9358-0 Stork, Peter R., David J. Lyons, and Michael J. Bell. Losses of nitrogen in surface runoff from a plantation horticulture farm in coastal Queensland, Australia Australian Journal of Soil Research, 47(6): 565-573, 2009. ISSN 0004-9573. http://dx.doi.org/10.1071/SR08238 Sugimoto, Ryo, Akihide Kasai, Toshihiro Miyajima, and Kouichi Fujita. Controlling factors of seasonal variation in the nitrogen isotope ratio of nitrate in a eutrophic coastal environment Estuarine Coastal and Shelf Science, 85(2): 231-240, November 10, 2009. ISSN 0272-7714. http://dx.doi.org/10.1016/j.ecss.2009.08.006 Tadonleke, Remy D., Jerome Lazzarotto, Orlane Anneville, and Jean-Claude Druart. Phytoplankton productivity increased in Lake Geneva despite phosphorus loading reduction Journal of Plankton Research, 31(10): 1179-1194, October 2009. ISSN 0142-7873. http://dx.doi.org/10.1093/plankt/fbp063 Tang, Yanling, Guangxin Zhang, Yuesuo Yang, and Yingzhi Gao. Identifying key environmental factors influencing spatial variation of water quality in upper Shitoukoumen Reservoir Basin in Jilin Province, China Chinese Geographical Science, 19(4): 365-374, December 2009. ISSN 1002-0063. http://dx.doi.org/10.1007/s11769-009-0365-9

Taub, Frieda B. Community metabolism of aquatic Closed Ecological Systems: Effects of nitrogen sources Advances in Space Research, 44(8): 949-957, October 15, 2009. ISSN 0273-1177. http://dx.doi.org/10.1016/j.asr.2009.04.025 Theobald, M. R., W. J. Bealey, Y. S. Tang, A. Vallejo, and M. A. Sutton. A simple model for screening the local impacts of atmospheric ammonia Science of the Total Environment, 407(23): 6024-6033, November 15, 2009. ISSN 0048-9697. http://dx.doi.org/10.1016/j.scitotenv.2009.08.025 Tomer, Mark D. and Keith E. Schilling. A simple approach to distinguish land-use and climate-change effects on watershed hydrology Journal of Hydrology, 376(1-2): 24-33, September 30, 2009. ISSN 0022-1694. http://dx.doi.org/10.1016/j.jhydrol.2009.07.029 Turner, Michelle M. and Hugh A. L. Henry. Net nitrogen mineralization and leaching in response to warming and nitrogen deposition in a temperate old field: the importance of winter temperature Oecologia, 162(1): 227-236, January 2010. ISSN 0029-8549. http://dx.doi.org/10.1007/s00442-009-1435-5 Turner, Michelle M. and Hugh A. L. Henry. Interactive effects of warming and increased nitrogen deposition on 15N tracer retention in a temperate old field: seasonal trends Global Change Biology, 15(12): 2885-2893, December 2009. ISSN 1354-1013. http://dx.doi.org/10.1111/j.1365-2486.2009.01881.x Vaattovaara, Petri, Tuukka Petaja, Jorma Joutsensaari, Pasi Miettinen, Boris Zaprudin, Aki Kortelainen, Juha Heijari, Pasi Yli-Pirila, Pasi Aalto, Doug R. Worsnop, and Ari Laaksonen. The evolution of nucleation- and Aitken-mode particle compositions in a boreal forest environment during clean and pollution-affected new-particle formation events Boreal Environment Research, 14(4): 662-682, August 31, 2009. ISSN 1239-6095. http://www.borenv.net/BER/pdfs/ber14/ber14-662.pdf Vione, Davide, Marco Minella, Claudio Minero, Valter Maurino, Paolo Picco, Aldo Marchetto, and Gabriele Tartari. Photodegradation of nitrite in lake waters: role of dissolved organic matter Environmental Chemistry, 6(5): 407-415, 2009. ISSN 1448-2517. http://dx.doi.org/10.1071/EN09050 von der Heide, Carolin, Juergen Boettcher, Markus Deurer, Wilhelmus H. M. Duijnisveld, Daniel Weymann, and Reinhard Well. Estimation of indirect nitrous oxide emissions from a shallow aquifer in Northern Germany

Journal of Environmental Quality, 38(6): 2161-2171, November-December 2009. ISSN 0047-2425. http://dx.doi.org/10.2134/jeq2008.0320 Walton, Richard S. and Heather M. Hunter. Isolating the water quality responses of multiple land uses from stream monitoring data through model calibration Journal of Hydrology, 378(1-2): 29-45, November 15, 2009. ISSN 0022-1694. http://dx.doi.org/10.1016/j.jhydrol.2009.09.004 Wang, Hui, Cyndee L. Gruden, Thomas B. Bridgeman, and Justin D. Chaffin. Detection and quantification of Microcystis spp. and microcystin-LR in Western Lake Erie during the summer of 2007 Water Science and Technology, 60(7): 1837-1846, 2009. ISSN 0273-1223. http://dx.doi.org/10.2166/wst.2009.517 Wang, Pei-Fang, Li Zhao, Chao Wang, Jun Hou, and Douglas J. Schnoebelen. Nitrogen distribution and potential mobility in sediments of three typical shallow urban lakes in China Environmental Engineering Science, 26(10): 1511-1521, October 2009. ISSN 1092-8758. http://dx.doi.org/10.1089/ees.2008.0367 Wei, Xiaorong, Mingan Shao, Xiaoli Fu, Robert Horton, Yong Li, and Xingchang Zhang. Distribution of soil organic C, N and P in three adjacent land use patterns in the northern Loess Plateau, China Biogeochemistry, 96(1-3): 149-162, December 2009. ISSN 0168-2563. http://dx.doi.org/10.1007/s10533-009-9350-8 Weymann, Daniel, Reinhard Well, Carolin von der Heide, Juergen Boettcher, Heiner Flessa, and Wilhelmus H. M. Duijnisveld. Recovery of groundwater N2O at the soil surface and its contribution to total N2O emissions Nutrient Cycling in Agroecosystems, 85(3): 299-312, November 2009. ISSN 1385-1314. http://dx.doi.org/10.1007/s10705-009-9269-4 Wilson, Duncan S. and Douglas A. Maguire. Environmental basis of soil-site productivity relationships in ponderosa pine Ecological Monographs, 79(4): 595-617, November 2009. ISSN 0012-9615. http://dx.doi.org/10.1890/08-0586.1 Zhao, Yu, Lei Duan, Jia Xing, Thorjorn Larssen, Chris P. Nielsen, and Jiming Hao. Soil acidification in China: Is controlling SO2 emissions enough? Environmental Science & Technology, 43(21): 8021-8026, November 1, 2009. ISSN 0013-936X. http://dx.doi.org/10.1021/es901430n

Reports National Lakes Assessment: A Collaborative Survey of the Nation’s Lakes: Draft. U.S. Environmental Protection Agency, Office of Water and Office of Research and Development, Washington, D.C., 2009. EPA 841-R-09-001. http://www.epa.gov/lakessurvey/pdf/nla_report_low_res.pdf Executive Order 1358: Draft Strategy for Protecting and Restoring the Chesapeake Bay, November 9, 2009. http://executiveorder.chesapeakebay.net/file.axd?file=2009%2f11%2fChesapeake+Bay+Executive+Order+Draft+Strategy.pdfDeveloped by the Federal Leadership Committee for the Chesapeake Bay for public comment. Web Pages National Lakes Assessment http://www.epa.gov/lakessurveySource: U. S. Environmental Protection Agency Chesapeake Bay Executive Order: Protecting and restoring a national treasure http://executiveorder.chesapeakebay.net/Source: Federal Leadership Committee for the Chesapeake Bay NASA Earth Observatory: Mississippi River sediment plume http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=4720Source: U. S. National Aeronautics and Space Administration For Bureau of National Affairs subscribers (including EPA staff) Water pollution: Comprehensive EPA survey of lakes gives 43 percent ‘fair' or ‘poor' ratings BNA Daily Environment Report, December 21, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15853272&vname=dennotallissues&wsn=497861000&searchid=9962208&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=0 Chesapeake Bay: Virginia Farm Bureau leaders oppose new EPA plans for restoration of Bay BNA Daily Environment Report, December 4, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15797381&vname=dennotallissues&wsn=498234500&searchid=9962208&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=1 Chesapeake Bay: EPA expects Bay states, D.C. to preserve commitments to top water quality standards

BNA Daily Environment Report, November 20, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15768664&vname=dennotallissues&wsn=498509500&searchid=9962208&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=1 Air pollution: EPA agrees to review emissions standards for new nitric acid plants, settling lawsuit BNA Daily Environment Report, November 16, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15750498&vname=dennotallissues&wsn=498633500&searchid=9962208&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=1 Water pollution: Nutrient standards set for Florida waters could extend to other states, speakers say BNA Daily Environment Report, November 13, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15746520&vname=dennotallissues&wsn=498676500&searchid=9962208&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=1 Chesapeake Bay: EPA official says Bay cleanup requires ‘new tools,' bill aligns with Agency initiative BNA Daily Environment Report, November 11, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15738324&vname=dennotallissues&wsn=498732500&searchid=9962208&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=1 Chesapeake Bay: Draft Federal strategy for restoring Bay calls for EPA collaboration with states BNA Daily Environment Report, November 10, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15738321&vname=dennotallissues&wsn=498732000&searchid=9962208&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=1 Air pollution: EPA to complete review of standards for six major air pollutants by 2011 BNA Daily Environment Report, October 27, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15665179&vname=dennotallissues&wsn=499062000&searchid=9962208&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=1 Air pollution: EPA reports 5 percent drop in emissions of nitrogen oxides in NOx SIP call states BNA Daily Environment Report, October 15, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15450100&vname=dennotallissues&wsn=499317000&searchid=9625891&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=1

Air pollution: Alaska, Great Lakes ports seek exclusions from tighter limits on emissions from ships BNA Daily Environment Report, October 7, 2009 http://news.bna.com/deln/DELNWB/split_display.adp?fedfid=15376069&vname=dennotallissues&wsn=499473500&searchid=9625891&doctypeid=1&type=date&mode=doc&split=0&scm=DELNWB&pg=1 For Inside EPA subscribers (including EPA staff) Task force eyes new measures of Mississippi River nutrient reductions Inside EPA Water Policy Report, December 21, 2009 http://insideepa.com/secure/docnum.asp?docnum=WATER-18-26-1&f=epa_2001.ask House Agriculture Committee pushing back on Chesapeake Bay bill Inside EPA Water Policy Report, December 21, 2009 http://insideepa.com/secure/docnum.asp?docnum=WATER-18-26-15&f=epa_2001.ask Activists’ new legal action continues push for numeric nutrient criteria Inside EPA Environmental Policy Alert, December 2, 2009 http://insideepa.com/secure/docnum.asp?docnum=POLICYALERT-26-24-45&f=epa_2001.ask EPA to review activist bid for GHG limits in nitric acid plant standards Inside EPA Clean Air Report, November 26, 2009 http://insideepa.com/secure/docnum.asp?docnum=CLEANAIR-20-24-33&f=epa_2001.ask Activists’ new legal action continues push for numeric nutrient criteria Inside EPA Environmental Policy Alert, December 2, 2009 http://insideepa.com/secure/docnum.asp?docnum=POLICYALERT-26-24-45&f=epa_2001.ask EPA to review activist bid for GHG limits in nitric acid plant standards Inside EPA Clean Air Report, November 26, 2009 http://insideepa.com/secure/docnum.asp?docnum=CLEANAIR-20-24-33&f=epa_2001.ask EPA struggles to defend key nutrient water permit despite recent precedent Inside EPA Environmental Policy Alert, November 18, 2009 http://insideepa.com/secure/docnum.asp?docnum=POLICYALERT-26-23-24&f=epa_2001.ask Activists hail strong enforcement policy in EPA Chesapeake Bay letter Inside EPA Defense Environment Alert, November 10, 2009 http://insideepa.com/secure/docnum.asp?docnum=DEFENVALERT-17-23-22&f=epa_2001.ask Chesapeake marching orders The Inside Story, November 4, 2009 http://insideepa.com/secure/docnum.asp?docnum=1142009_orders&f=epa_2001.ask Cardin scales back some provisions in massive Chesapeake Bay bill

Inside EPA Defense Environment Alert, October 27, 2009 http://insideepa.com/secure/docnum.asp?docnum=DEFENVALERT-17-22-15&f=epa_2001.ask EPA pushes ahead with reviews of SO2, ozone national air standards Inside EPA Defense Environment Alert, October 27, 2009 http://insideepa.com/secure/docnum.asp?docnum=DEFENVALERT-17-22-14&f=epa_2001.ask EAB backs broad EPA power to set strict trans-state nutrient limits Inside EPA Environmental Policy Alert, October 21, 2009 http://insideepa.com/secure/docnum.asp?docnum=POLICYALERT-26-21-16&f=epa_2001.ask Activists’ NSPS petition marks new tack to limit CAFOS’ emissions Inside EPA Clean Air Report, October 15, 2009 http://insideepa.com/secure/docnum.asp?docnum=CLEANAIR-20-21-5&f=epa_2001.ask EPA may struggle to use Chesapeake Bay model for other cleanups Inside EPA Defense Environment Alert, October 13, 2009 http://insideepa.com/secure/docnum.asp?docnum=DEFENVALERT-17-21-14&f=epa_2001.ask Environmentalists advocate for Chesapeake Bay legislation Inside EPA Water Policy Report, October 12, 2009 http://insideepa.com/secure/docnum.asp?docnum=WATER-18-21-6&f=epa_2001.ask State-EPA workgroup urges stricter nutrient discharge controls Inside EPA Water Policy Report, October 12, 2009 http://insideepa.com/secure/docnum.asp?docnum=WATER-18-21-24&f=epa_2001.ask EPA urges state to seek GHG cuts from agriculture industry Inside Cal/EPA, October 9, 2009 http://insideepa.com/secure/docnum.asp?docnum=CALEPA-20-40-7&f=epa_2001.ask EPA Water Chief eyes strict TMDL approach to address nonpoint runoff Inside EPA Environmental Policy Alert, October 7, 2009 http://insideepa.com/secure/docnum.asp?docnum=POLICYALERT-26-20-15&f=epa_2001.ask Facing workload, EPA eyes dropping landmark joint NOx-SOx NAAQS Inside EPA Clean Air Report, October 1, 2009 http://insideepa.com/secure/docnum.asp?docnum=CLEANAIR-20-20-11&f=epa_2001.ask