@mastersthesis {PIE495,
	title = {Quantifying and Valuing Carbon and Nitrogen Sequestration as Ecosystem Services in Salt Marshes.},
	volume = {MS},
	year = {2020},
	note = {Grad},
	school = {Villanova University},
	type = {mastersthesis},
	address = {Villanova, PA},
	keywords = {carbon, inorganic nutrients, LTER-PIE, nitrogen, organic matter, salt marshes, sediments, sequestration},
	author = {Demberger, S.}
}
@article {PIE410,
	title = {Satisfaction, water and fertilizer use in the American residential macrosystem},
	journal = {Environmental Research Letters},
	year = {2016},
	note = {PI Plum Data},
	keywords = {environmental satisfaction, inorganic nutrients, lawns, LTER-PIE, nitrogen, residential land use, urban ecology, water},
	doi = {10.1088/1748-9326/11/3/034004},
	author = {Groffman, P.M. and Grove, J.M. and Polsky, C. and Bettez, N.D. and Morse, J.L. and Cavender-Bares, J. and Hall, S.J. and Heffernan, J.B. and Hobbie, S.E. and Larson, K.L. and Neill, C. and Nelson, K. and Ogden, L. and O{\textquoteright}Neil-Dunne, J. and Pataki, D. and Chowdhury, R.R.}
}
@article {PIE374,
	title = {Climate variability masks the impacts of land use change on nutrient export in a suburbanizing watershed},
	journal = {Biogeochemistry},
	year = {2014},
	note = {Grad},
	keywords = {aquatic processing, disturbance, inorganic nutrients, long-term change, LTER-PIE, nitrogen, phosphorus, seasonality, suburbanization, watershed},
	doi = {10.1007/s10533-014-9998-6},
	author = {Morse, N.B. and Wollheim, W.M.}
}
@phdthesis {PIE393,
	title = {Quantifying the Impact of Urbanization on N and P Inputs, Transformations, Removal and Fluxes in Watersheds Draining to the Plum Island Estuary},
	volume = {PhD},
	year = {2014},
	note = {Grad},
	school = {University of New Hampshire},
	type = {phdthesis},
	address = {Durham, NH},
	keywords = {disturbance, LTER-PIE, nitrogen, phosphorus, urbanization, watershed fluxes},
	author = {Morse, N.B.}
}
@thesis {PIE328,
	title = {Does Chronic Nutrient Enrichment Result in a Trophic Bottleneck in a Salt Marsh?},
	volume = {Honors, BS},
	year = {2013},
	note = {Undergrad},
	school = {Brown University},
	type = {bachelorsthesis},
	address = {Providence, RI},
	keywords = {fertilization, food webs, inorganic nutrients, LTER-PIE, nitrogen, salt marsh},
	author = {Booth, H.S.}
}
@article {PIE223,
	title = {The effect of increased nitrate loading on nitrate reduction via denitrification and DNRA in salt marsh sediments},
	journal = {Limnology and Oceanography},
	volume = {55},
	year = {2010},
	note = {Grad},
	pages = {789-802},
	keywords = {denitrification, DNRA, inorganic nutrients, LTER-PIE, nitrogen, salt marsh},
	doi = {10.4319/lo.2010.55.2.0789},
	author = {Koop-Jakobsen, K. and Giblin, A.E.}
}
@article {PIE225,
	title = {Effective denitrification scales predictably with water residence time across diverse systems},
	journal = {Nature Precedings},
	year = {2009},
	note = {PI Plum Data},
	keywords = {denitrification, disturbance, estuary, ground water, inorganic nutrients, lake, LTER-PIE, nitrogen, residence, river, soil, stream, time scaling, water, wetland},
	doi = {10101/npre.2009.3520.1},
	author = {Green, M. and Wollheim, W.M. and Basu, N. and Gettel, G.M. and Rao, P. and Morse, N. and Stewart, R.}
}
@article {PIE209,
	title = {Increased supply of ambient nitrogen has minimal effect on salt marsh bacterial production},
	journal = {Limnology and Oceanography },
	volume = {54},
	number = {3},
	year = {2009},
	note = {PI Plum Data},
	pages = {713 - 722},
	keywords = {bacterial production, disturbance, inorganic nutrients, LTER-PIE, nitrogen, salt marsh},
	doi = {10.4319/lo.2009.54.3.0713},
	author = {Bowen, J.L. and Crump, B.C. and Deegan, L.A. and Hobbie, J.E.}
}
@article {PIE207,
	title = {A new approach for measuring denitrification in the rhizosphere of vegetated marsh sediments},
	journal = {Limnology and Oceanography, Methods},
	volume = {7},
	year = {2009},
	note = {Grad},
	pages = {626 - 637},
	keywords = {denitrification, inorganic nutrients, LTER-PIE, marsh sediment, nitrogen},
	doi = {10.4319/lom.2009.7.626},
	author = {Koop-Jakobsen, K. and Giblin, A.E.}
}
@article {PIE208,
	title = {Nutrient cycling relative to δ15N and δ13C natural abundance in a coastal wetland with long-term nutrient additions},
	journal = {Aquatic Ecology},
	year = {2009},
	note = {PI Coastal},
	keywords = {coastal wetland, disturbance, inorganic nutrients, LTER-PIE, natural abundance, nitrogen, nutrient loading, nutrient uptake, phosphorus, δ13C, δ15N},
	doi = {10.1007/s10452-008-9221-8},
	author = {Bernot, M.J. and Bernot, R.J. and Morris, J.T.}
}
@article {PIE182,
	title = {The regional and global significance of reactive N removal in lakes and reservoirs},
	journal = {Biogeochemistry},
	volume = {93},
	year = {2009},
	note = {PI Synthesis},
	pages = {147-158},
	keywords = {denitrification, global limnology, inorganic nutrients, lakes, LTER-PIE, nitrogen, nitrogen removal, resevoirs},
	doi = {10.1007/s10533-008-9272-x},
	author = {Harrison, J. and Maranger, R. and Alexander, R.B. and Cornwell, J. and Giblin, A. and Jacinthe, P. and Mayorga, E. and Seitzinger, S. and Wollheim, W.M.}
}
@article {PIE169,
	title = {Salt marsh sediment bacteria: their distribution and response to external nutrient inputs},
	journal = {The ISME Journal},
	volume = {3},
	year = {2009},
	note = {PI Plum Data},
	pages = {924 - 934},
	keywords = {bacteria, disturbance, inorganic nutrients, LTER-PIE, nitrogen, salt marsh},
	doi = {10.1038/ismej.2009.44},
	author = {Bowen, J.L. and Crump, B.C. and Deegan, L.A. and Hobbie, J.E.}
}
@mastersthesis {PIE226,
	title = {Separation of river network scale nitrogen removal between surface and hyporheic transient storage compartments.},
	volume = {M.S.},
	year = {2009},
	note = {Grad},
	school = {University of New Hampshire},
	type = {mastersthesis},
	address = {Durham, NH},
	keywords = {disturbance, hyporheic, inorganic nutrients, LTER-PIE, nitrogen, rivers},
	author = {Stewart, R.}
}
@mastersthesis {PIE204,
	title = {The biogeochemical influences of nitrate, dissolved oxygen, and dissolved organic carbon on stream nitrate uptake},
	volume = {M.S.},
	year = {2008},
	note = {Grad},
	school = {University of New Hampshire},
	type = {mastersthesis},
	address = {Durham, NH},
	keywords = {carbon, inorganic nutrients, LTER-PIE, nitrate, nitrogen, oxygen},
	author = {Thouin, J.}
}
@phdthesis {PIE174,
	title = {The impact of increased Nitrogen Loading on Gaseous Loss of Nitrogen from Salt Marsh Sediments},
	volume = {Ph.D.},
	year = {2008},
	note = {Grad},
	school = {Boston University},
	type = {phdthesis},
	address = {Boston, MA},
	keywords = {LTER-PIE, nitrogen, nutrients, organic matter, salt marsh},
	author = {Koop-Jakobsen, K.}
}
@inbook {PIE172,
	title = {Nitrogen Dynamics of Coastal Salt Marshes},
	booktitle = {Nitrogen in the Marine Environment, 2nd Edition},
	year = {2008},
	note = {PI Plum Data},
	pages = {991-1036},
	publisher = {Elsevier Publishers},
	organization = {Elsevier Publishers},
	chapter = {22},
	keywords = {inorganic nutrients, LTER-PIE, nitrogen, organic matter, salt marsh},
	isbn = {9780123725226},
	author = {Hopkinson, C. and Giblin, A.},
	editor = {Capone, R. and Bronk, D. and Mulholland, M. and Carpenter, E.}
}
@article {PIE190,
	title = {Stream denitrification across biomes and its response to anthropogenic nitrate loading},
	journal = {Nature},
	volume = {452},
	year = {2008},
	note = {PI Plum Data},
	pages = {202-206},
	keywords = {denitrification, disturbance, inorganic nutrients, LTER-PIE, nitrogen, nitrogen isotopes, stream network},
	doi = {10.1038/nature06686},
	author = {Mulholland, P. J. and Helton, A. M. and Poole, G.C. and Hall, Jr., R.O. and Hamilton, S. K. and Peterson, B. J. and Tank, J.L. and Ashkenas, L.R. and Cooper, L. W. and Dahm, C. N. and Dodds, W. K. and Findlay, S. E. G. and Gregory, S. V. and Grimm, N.B. and Johnson, S. L. and McDowell, W.H. and Meyer, J. L. and Valett, H. M. and Webster, J. R. and Arango, C. P. and Beaulieu, J. J. and Bernot, M. J. and Burgin, A. J. and Crenshaw, C. L. and Johnson, L.T. and Niederlehner, B. R. and OﾒBrien, J. M. and Potter, J. D. and Sheibley, R.W. and Sobota, D. J. and Thomas, S. M.}
}
@article {PIE162,
	title = {The role of snowmelt and spring rainfall in inorganic nutrient fluxes from a large temperate watershed, the Androscoggin River basin (Maine and New Hampshire).},
	journal = {Biogeochemistry},
	volume = {80},
	year = {2006},
	note = {PI Coastal},
	pages = {217-234},
	keywords = {Androscoggin River, DIN, Freshet, LTER-PIE, nitrogen, nutrient, Snowmelt, Snowpack, watershed},
	doi = {10.1007/s10533-006-9017-7},
	author = {Oczkowski, A.J. and Pellerin, B.A. and Hunt, C.W. and Wollheim, W.M. and Vorosmarty, C.J. and Loder, T.C.}
}
@phdthesis {PIE175,
	title = {The controls of watershed nutrient export},
	volume = {Ph.D.},
	year = {2005},
	note = {Grad},
	school = {University of New Hampshire},
	type = {phdthesis},
	address = {Durham, NH},
	keywords = {export, LTER-PIE, nitrogen, nutrients, watershed},
	author = {Wollheim, W.M.}
}
@article {PIE156,
	title = {N retention in urbanizing headwater catchments},
	journal = {Ecosystems},
	volume = {8},
	year = {2005},
	note = {PI Plum Data},
	pages = {871-884},
	keywords = {export, impervious, inorganic nutrients, loading, LTER-PIE, nitrogen, residential, retention, urban, watershed},
	doi = {10.1007/s10021-005-0178-3},
	author = {Wollheim, W. and Pellerin, B. and Vorosmarty, C. and Hopkinson, C.}
}
@proceedings {PIE136,
	title = {The effects of long term nutrient addition on a salt marsh community.},
	journal = {New England Estuarine Research Society (NEERS), March 7-9, 2004},
	year = {2004},
	note = {PI Plum Data},
	address = {Burlington, Vermont},
	keywords = {community, LTER-PIE, nitrogen, outfall, salt marsh},
	author = {Sheldon, S.P. and Twichell, S. and Deegan, L.A.}
}
@article {PIE120,
	title = {Isotopic investigation of nitrogen retention in a riparian ecosystem.},
	journal = {Journal of Applied Ecology},
	volume = {40},
	number = {6},
	year = {2004},
	note = {PI Plum Data},
	pages = {1035-1048},
	keywords = {isotopes, LTER-PIE, nitrogen, riparian},
	doi = {10.1111/j.1365-2664.2003.00854.x},
	author = {Clement, J. and Holmes, R.M. and Peterson, B.J. and Pinlay, G.}
}
@article {PIE138,
	title = {N budgets and aquatic uptake in the Ipswich River basin, northeastern Massachusetts.},
	journal = {Water Resources Research},
	volume = {40},
	number = {11},
	year = {2004},
	note = {PD Plum Data},
	pages = {1-12},
	keywords = {anthropogenic, land use, LTER-PIE, nitrogen, uptake, water quality},
	doi = {10.1029/2004WR003172},
	author = {Williams, M. and Hopkinson, C. and Rastetter, E. and Vallino, J.}
}
@thesis {PIE114,
	title = {The effects of long term nutrient addition on a salt marsh community},
	volume = {B.S.},
	year = {2003},
	note = {Undergrad},
	school = {Middleburry College},
	type = {bachelorsthesis},
	address = {Middlebury, VT},
	keywords = {invertebrates, LTER-PIE, nitrogen, outfall, salt marsh},
	author = {Twitchell, S.}
}
@article {PIE99,
	title = {Pre-industrial and contemporary fluxes of nitrogen through rivers: A global assessment based on typology},
	journal = {Biogeochemistry},
	volume = {68},
	year = {2003},
	note = {PI Synthesis},
	pages = {1-35},
	keywords = {anthropogenic loading, global, inorganic nutrients, LTER-PIE, nitrogen, nitrogen budget, nitrogen yields, rivers, watershed},
	doi = {10.1023/B:BIOG.0000025742.82155.92},
	author = {Green, P.A. and Vorosmarty, C.J. and Meybeck, M. and Galloway, J.N. and Peterson, B.J. and Boyer, E.W.}
}
@article {PIE113,
	title = {Processing watershed-derived nitrogen in a well-flushed New England estuary.},
	journal = {Limnology and Oceanography},
	volume = {48},
	number = {5},
	year = {2003},
	note = {PD Coastal},
	pages = {1766-1778},
	keywords = {estuary, LTER-PIE, nitrogen, watershed},
	doi = {10.4319/lo.2003.48.5.1766},
	author = {Tobias, C.R. and Cieri, M. and Peterson, B.J. and Deegan, L.A. and Vallino, J. and Hughes, J.}
}
@mastersthesis {PIE70,
	title = {Land use and nitrate loading in small stream catchments},
	volume = {M.S.},
	year = {2001},
	note = {Grad},
	school = {Clark University},
	type = {mastersthesis},
	address = {Worcester},
	keywords = {land use, LTER-PIE, nitrogen, stream},
	author = {Tada, T.}
}
@article {PIE39,
	title = {Modeling the effects of land-use change on nitrogen biogeochemistry in the Ipswich watershed, Massachusetts},
	journal = {Biological Bulletin},
	volume = {199},
	number = {2},
	year = {2000},
	note = {REU},
	pages = {218-219},
	keywords = {Ipswich River, land use, LTER-PIE, model, nitrogen},
	doi = {10.2307/1542907},
	author = {Kirkby, R. and Claessens, L. and Hopkinson, Jr., C. and Rastetter, E. and Vallino, J.}
}
@article {PIE38,
	title = {Nitrogen flow through the food web in the oligohaline zone of a New England estuary.},
	journal = {Ecology},
	volume = {81},
	year = {2000},
	note = {PD Plum Data},
	pages = {433-452},
	keywords = {15N-tracer, Actinocyclus normanii, benthivore, copepod, detritus, diatoms, disturbance, food web, inorganic nutrients, intertidal, LTER-PIE, macrofauna, nitrogen, oligohaline zone, planktivore, population dynamics, primary production},
	doi = {10.2307/177438},
	author = {Hughes, J. E. and Deegan, L.A. and Peterson, B.J. and Holmes, R.M. and Fry, B.}
}
@inbook {PIE46,
	title = {Scenarios of land-use change and nitrogen release in the Ipswich watershed, Massachusetts, USA},
	booktitle = {Proceedings of the 4th International Conference on Integrating Geographic Information Systems and Environmental Modeling: Problems, prospects, and Needs for Research},
	year = {2000},
	note = {PI Plum Data},
	publisher = {Cooperative Institute for Research in Environmental Science},
	organization = {Cooperative Institute for Research in Environmental Science},
	address = {Boulder, CO},
	keywords = {land use change, LTER-PIE, nitrogen},
	author = {Pontius, R.G., Jr. and Claessens, L. and Hopkinson, C. and Marzouk, A. and Rastetter, E.B. and Schneider, L.C. and Vallino, J.},
	editor = {B. O. Parks and K. M. Clarke and M. P. Crane}
}
@article {PIE19,
	title = {Sources of organic matter in Ria Formosa revealed by stable isotope analysis},
	journal = {Acta Oecologica},
	volume = {20},
	year = {1999},
	note = {Grad},
	pages = {463-469},
	keywords = {carbon, estuary, food web, LTER-PIE, nitrogen, stable isotope},
	doi = {10.1016/S1146-609X(99)00122-8},
	author = {Machas, R. and Santos, R.}
}
