Research Publications

Aber, J. D. 1992. Nitrogen Cycling and Nitrogen Saturation in Temperate Forest Ecosystems. Trends in Ecology and Evolution 7: 220-223.

Aber, J. D. 2002. Nitrogen saturation in temperate forest ecosystems: current theory, remaining questions and recent advances. In: Horst, W. J., Burkert, A., Claassen, N., Flessa, H., Progress in Plant Nutrition: Plenary Lectures of the XIV International Plant Nutrition Colloquium, Kluwer Academic Publishers, Dordrecht.

Aber, J. D., Goodale, C. G., Ollinger, S. V., Hallett, R. A., Magill, A. H., Martin, M. E., Smith, M. L., Stoddard, J. L. 2003. Is Nitrogen Deposition Altering the Nitrogen Status of Northeastern Forests?. BioScience 53: 375-389.

Aber, J. D., Magill, A. H. 2004. Chronic nitrogen additions at the Harvard Forest (USA): the first 15 years of a nitrogen saturation experiment. Forest Ecology and Management 196: 1-5.

Aber, J. D., Magill, A., Boone, R. D., Melillo, J. M., Steudler, P. A., Bowden, R. D. 1993. Plant and soil responses to chronic nitrogen additions at the Harvard Forest, Massachusetts. Ecological Applications 3: 156-166.

Aber, J. D., Magill, A., McNulty, S. G., Boone, R. D., Nadelhoffer, K. J., Downs, M. R., Hallett, R. A. 1995. Forest biogeochemistry and primary production altered by nitrogen saturation. Water, Air and Soil Pollution 85: 1665-1670.

Aber, J. D., Magill, A., Nadelhoffer, K. J., Melillo, J., Steudler, P. A., Hendricks, J. J., Bowden, R. D., Currie, W. S., McDowell, W., Berntson, G. M. 2004. Exploring the process of nitrogen saturation. In: Foster, D. R., Aber, J. D., Forests in Time: The Environmental Consequences of 1000 Years of Change in New England, Yale University Press, New Haven, CT.

Aber, J. D., McDowell, W. H., Nadelhoffer, K. J., Magill, A. H., Berntson, G. M., Kamekea, M., McNulty, S. G., Currie, W. S., Rustad, L. E., Fernandez, I. 1998. Nitrogen Saturation in Temperate Forest Ecosystems. BioScience 48: 921-934.

Aber, J. D., Melillo, J. M., Nadelhoffer, K. J., Pastor, J., Boone, R. D. 1991. Factors controlling nitrogen cycling and nitrogen saturation in northern temperate forest ecosystems. Ecological Applications 1: 303-315.

Aber, J. D., Nadelhoffer, K. J., Steudler, P., Melillo, J. M. 1989. Nitrogen Saturation in Northern Forest Ecosystems. BioScience 39: 378-386.

Bauer, G. A., Bazzaz, F. A., Minocha, R., Long, S., Magill, A., Aber, J. D., Berntson, G. M. 2004. Effects of chronic N additions on tissue chemistry, photosynthetic capacity, and carbon sequestration potential of a red pine (Pinus resinosa Ait.) stand in the NE United States. Forest Ecology and Management 196: 173-186.

Bauer, G. A., Berntson, G. M., Bazzaz, F. A. 2001. The effect of elevated CO2 and increased N availability on regenerating temperate forest communities: biochemical versus stomatal limitation of photosynthesis. New Phytologist 152: 249-266.

Bell*, S. 2000. Microbial nitrogen utilization under nitrogen-saturation conditions in temperate forests. Thesis, University of Oregon.

Berntson, G. M., Aber, J. D. 2000. Fast nitrate immobilization in N-saturated temperate forest soils. Soil Biology and Biochemistry 32: 151-156.

Bogdziewicz, M., Crone, E. E., Steele, Michael A., Zwolak, Rafal 2016. Effects of nitrogen deposition on reproduction in a masting tree: benefits of higher seed production are trumped by negative biotic interactions. Journal of Ecology 105: 310-320.

Bowden, R. D., Melillo, J. M., Steudler, P. A., Aber, J. D. 1991. Effects of nitrogen additions on annual nitrous oxide fluxes from temperate forest soils in the northeastern United States. Journal of Geophysical Research 96: 9321-9328.

Callahan, H. S., Del Fierro, K., Patterson, A. E., Zafar, H. 2008. Impacts of elevated nitrogen inputs on oak reproductive and seed ecology. Global Change Biology 14: 285-293.

Chan, A. S. K., Steudler, P. A., Bowden, R. D., Gulledge, J., Cavanaugh, C. 2005. Consequences of nitrogen fertilization on soil methane consumption in a productive temperate deciduous forest. Biology and Fertility of Soils 41: 182-189.

Compton, J. E, Watrud, L. S., Porteous, L. A., DeGrood*, S. 2004. Response of soil microbial biomass and community composition to chronic nitrogen additions at Harvard Forest. Forest Ecology and Management 196: 143-158.

Currie, W. S., Aber, J. D., Driscoll, C. T. 1999. Leaching of nutrient cations from the forests floor: effects of nitrogen saturation in two long-term manipulations. Canadian Journal of Forest Research 29: 609-620.

Currie, W. S., Aber, J. D., McDowell, W. H., Boone, R. D., McGill, A. H. 1996. Vertical transport of dissolved organic C and N under long-term N amendments in pine and hardwood forests. Biochemistry 35: 471-505.

Currie, W. S., Nadelhoffer, K. J., Aber, J. D. 1999. Soil detrital processes controlling the movement of 15N tracers to forest vegetation. Ecological Applications 9: 87-102.

Currie, W. S., Nadelhoffer, K. J., Aber, J. D. 2004. Redistributions of 15N highlight turnover and replenishment of mineral soil organic N as a long-term control on forest C balance. Forest Ecology and Management 196: 109-127.

Currie, W. S., Nadelhoffer, K. J., Colman, B. P. 2002. Long-term movement of 15N tracers into fine woody debris under chronically elevated N inputs. Plant and Soil 238: 313-323.

Dail, D. B., Davidson, E. A., Chrover, J. 2001. Rapid abiotic transformation of nitrate in an acid forest soil. Biogeochemistry 54: 131-146.

Domke, G., Williams, C. A., Birdsey, R., Coulston, J., Finzi, A. C., Gough, C., Haight, B., Hicke, J., Janowiak, M., de Jong, B., Kurz, W. A., Lucash, M., Ogle, S., Olguin-Alvarez, M., Pan, Y., Skutsch, M., Smyth, C., Swanston, C., Templer, P., Wear, D., Woodall, C. W. 2018. Forests. In: Cavallaro, N., Shrestha, G., Birdsey, R., Mayes, M. A., Najjar, R. G., Reed, S. C., Romero-Lankao, P., Zhu, Z., Second State of the Carbon Cycle Report (SOCCR2): A Sustained Assessment Report, U.S. Global Change Research Program, Washington, DC.

Driscoll, C. T., Whitall, D., Aber, J. D., Boyer, B., Castro, M. C., Cronan, C., Goodale, C. G., Groffman, P., Hopkinson, C. S., Lambert, K., Lawrence, G., Ollinger, S. 2003. Nitrogen pollution in the northeastern United States: Sources, effects and management options. BioScience 53: 357-374.

Driscoll, C. T., Whitall, D., Aber, J. D., Boyer, B., Castro, M. C., Cronan, C., Goodale, C. G., Groffman, P., Hopkinson, C. S., Lambert, K., Lawrence, G., Ollinger, S. 2003. Nitrogen pollution: sources and consequences in the northeastern United States. Environment 47: 8-22.

Fenn, M. E., Poth, M., Aber, J. D., Baron, J. S., Bormann, B. T., Johnson, D. W., Lemly, A. D., McNulty, S. G., Ryan, D. F., Stottlemeyer, R. 1998. Nitrogen excess in North American ecosystems: predisposing factors, ecosystem responses, and management strategies. Ecological Applications 8: 706-733.

Finzi, A. C., Giasson, M.-A., Barker Plotkin, A., Aber, J. D., Boose, E. R., Davidson, E. A., Dietze, M. C., Ellison, A. M., Frey, S. D., Goldman, E., Keenan, T. F., Melillo, J. M., Munger, J. W., Nadelhoffer, K. J., Ollinger, S. V., Orwig, D. A., Pederson, N., Richardson, A. D., Savage, K., Tang, J., Thompson, J. R., Williams, C. A., Wofsy, S. C., Zhou, Z., Foster, D. R. 2020. Carbon budget of the Harvard Forest Long-Term Ecological Research site: pattern, process, and response to global change. Ecological Monographs 90: e01423, 37 pp.

Foster, D. R., Aber, J. D., Bowden, R. D., Melillo, J., Bazzaz, F. 2004. Comparison between physical disturbance and novel stresses. In: Foster, D. R., Aber, J. D., Forests in Time: The Environmental Consequences of 1000 Years of Change in New England, Yale University Press, New Haven, CT.

Foster, D. R., Aber, J. D., Melillo, J. M., Bowden, R. D., Bazzaz, F. A. 1997. Forest response to disturbance and anthropogenic stress. Rethinking the 1938 Hurricane and the impact of physical disturbance vs. chemical and climate stress on forest ecosystems. BioScience 47: 437-445.

Foster, D. R., Aber, J. D., Melillo, J., Bowden, R. D., Bazzaz, F. A. 1998. Forest response to natural disturbance versus human-induced stresses. Arnoldia 58: 35-40.

Frey, S. D. 2006. Forest ecosystem responses to chronic nitrogen additions. Teaching Issues and Experiments in Ecology 4: 1-14.

Frey, S. D. 2019. Mycorrhizal Fungi as Mediators of Soil Organic Matter Dynamics. Annual Review of Ecology, Evolution, and Systematics 50: 237-259.

Frey, S. D., Knorr, M., Parrent, J. L., Simpson, R. T. 2004. Chronic nitrogen enrichment affects the structure and function of the soil microbial community in temperate hardwood and pine forests. Forest Ecology and Management 196: 159-171.

Frey, S. D., Ollinger, S. V., Nadelhoffer, K. J., Bowden, R. D., Brzostek, E. R., Burton, A. J., Caldwell, B. A., Crow, S., Goodale, C. G., Grandy, A. S., Finzi, A. C., Kramer, M. G., Lajtha, K., LeMoine, J., Martin, M., McDowell, W. H., Minocha, R., Sadowsky, J. J., Templer, P. H., Wickings, K. 2014. Chronic nitrogen additions suppress decomposition and sequester soil carbon in temperate forests. Biogeochemistry 121: 305-316.

Giasson, M.-A., Ellison, A. M., Bowden, R. D., Crill, P. M., Davidson, E. A., Drake, J. E., Frey, S. D., Hadley, J. L., Lavine, M., Melillo, J. M., Munger, J. W., Nadelhoffer, K. J., Nicoll, L., Ollinger, S. V., Savage, K., Steudler, P. A., Tang, J., Varner, R. K., Wofsy, S. C., Foster, D. R., Finzi, A. C. 2013. Soil respiration in a northeastern US temperate forest: a 22-year synthesis. Ecosphere 4: article 140.

Gilliam, F. S., Burns, D. A., Driscoll, C. T., Frey, S. D., Lovett, G. M., Watmough, S. A. 2019. Decreased atmospheric nitrogen deposition in eastern North America: Predicted responses of forest ecosystems. Environmental Pollution 244: 560-574.

Gulledge, J., Hrywna, Y., Cavanaugh, C., Steudler, P. A. 2004. Effects of long-term nitrogen fertilization on the uptake kinetics of atmospheric methane in temperate forest soils. FEMS Microbiology Ecology 49: 389-400.

Heuck, C., Smolka, G., Whalen, E., Frey, S. D., Gundersen, P., Moldan, F., Fernandez, I. J., Spohn, M. 2018. Effects of long-term nitrogen addition on phosphorus cycling in organic soil horizons of temperate forests. Biogeochemistry 141: 167-181.

Kamble, P. N., Rousk, J., Frey, S. D., Baath, E. 2013. Bacterial growth and growth limiting nutrients following chronic nitrogen additions to a hardwood forest soil. Soil Biology and Biochemistry 59: 32-37.

Keenan, T. F., Davidson, E. A., Munger, J. W., Richardson, A. D. 2013. Rate my data: quantifying the value of ecological data for the development of models of the terrestrial carbon cycle. Ecological Applications 23: 273-286.

Li, J., Wang, G., Mayes, M. A., Allison, S. D., Frey, S. D., Shi, Z., Hu, X., Luo, Y., Melillo, J. M. 2019. Reduced carbon use efficiency and increased microbial turnover with soil warming. Global Change Biology 25: 900-910.

Magill, A. H., Aber, J. D. 1998. Long-term effects of chronic nitrogen additions on foliar litter decay and humus formation in forest ecosystems. Plant and Soil 203: 301-311.

Magill, A. H., Aber, J. D. 2000. Dissolved organic carbon and nitrogen relationships in forest litter as affected by nitrogen deposition. Soil Biology and Biochemistry 32: 603-613.

Magill, A. H., Aber, J. D. 2000. Variation in soil net mineralization rates with dissolved organic carbon additions. Soil Biology and Biochemistry 32: 597-601.

Magill, A. H., Aber, J. D., Berntson, G. M., McDowell, W. H., Nadelhoffer, K. J., Melillo, J. M., Steudler, P. A. 2000. Long-term nitrogen additions and nitrogen saturation in two temperate forests. Ecosystems 3: 238-253.

Magill, A. H., Aber, J. D., Currie, W. S., Nadelhoffer, K. J., Martin, M. E., McDowell, W. H., Melillo, J. M., Steudler, P. A. 2004. Ecosystem Response to 15 years of Chronic Nitrogen Additions at the Harvard Forest LTER, Massachusetts, USA. Forest Ecology and Management 196: 7-28.

Magill, A. H., Aber, J. D., Hendricks, J. J., Bowden, R. D., Melillo, J. M., Steudler, P. A. 1997. Biogeochemical response of forest ecosystems to simulated chronic nitrogen deposition. Ecological Applications 7: 402-415.

McDowell, W. H., Currie, W. S., Aber, J. D., Yano, Y. 1998. Effects of chronic nitrogen amendment on production of dissolved organic carbon and nitrogen in forest soils. Water, Air and Soil Pollution 105: 175-182.

McDowell, W. H., Magill, A., Aikenhead-Peterson, J. A., Aber, J. D., Merriam, J. L., Kaushal, S. S. 2004. Effects of chronic nitrogen amendment on dissolved organic matter and inorganic nitrogen soil solution. Forest Ecology and Management 196: 29-41.

Melillo, J. M., Steudler, P. A. 1989. The effect of nitrogen fertilization on the COS and CS2 emissions from temperate forest soils. Journal of Atmospheric Chemistry 9: 411-417.

Micks, P. 1994. Soil respiration and nitrogen additions in two forest stands: short- and long-term responses. Thesis, University of New Hampshire.

Micks, P., Aber, J. D., Boone, R. D., Davidson, E. A. 2004. Short-term soil respiration and nitrogen immobilization response to nitrogen applications in control and nitrogen-enriched temperate forests. Forest Ecology and Management 196: 57-70.

Micks, P., Downs, M. R., Magill, A. H., Nadelhoffer, K. J., Aber, J. D. 2004. Decomposing litter as a sink for 15N-enriched additions to an oak forest and a red pine plantation. Forest Ecology and Management 196: 71-87.

Minocha, R., Long, S., Magill, A. H., Aber, J. D., McDowell, W. H. 2000. Foliar free polyamine and inorganic ion content in relation to soil and soil solution chemistry in two fertilized stands at the Harvard Forest, Massachusetts. Plant and Soil 222: 119-137.

Minocha, R., Turlapati, S., Long, S., McDowell, W. H., Minocha, S. C. 2015. Long-term trends of changes in pine and oak foliar nitrogen metabolism in response to chronic nitrogen amendments at Harvard Forest, MA. Tree Physiology 35: 894-909.

Moore, J. A. M., Anthony, M. A., Pec, G. J., Trocha, L. K., Trzebny, A., Geyer, K. M., van Diepen, L. T. A., Frey, S. D. 2021. Fungal community structure and function shifts with atmospheric nitrogen deposition. Global Change Biology 27: 1349-1364.

Morrison, E. 2012. Effects of nitrogen fertilization on fungal community structure in a temperate hardwood forest: implicit links between structure, function, and resilience. Thesis, University of New Hampshire.

Morrison, E. 2017. Fungi as drivers of ecosystem response to global change. Thesis, University of New Hampshire.

Morrison, E. W., Frey, S. D., Sadowsky, J. J., van Diepen, L. T. A., Thomas, W. K., Pringle, A. 2016. Chronic nitrogen additions fundamentally restructure the soil fungal community in a temperate forest. Fungal Ecology 23: 48-57.

Morrison, E. W., Pringle, A., Van Diepen, L. T. A., Frey, S. D. 2018. Simulated nitrogen deposition favors stress-tolerant fungi with low potential for decomposition. Soil Biology and Biochemistry 125: 75-85.

Nadelhoffer, K. J., Aber, J. D., Downs, M. R., Fry, B., Melillo, J. M. 1992. Biological sinks for nitrogen additions to a forested catchment. Proceedings of the International Symposium on Experimental Manipulation of Biota and Biogeochemical Cycling in Ecosystems. Copenhagen.

Nadelhoffer, K. J., Colman, B. P., Currie, W. S., Magill, A. H., Aber, J. D. 2004. Decadal scale fates of 15N tracers added to oak and pine stands under ambient and elevated N inputs at the Harvard Forest (USA). Forest Ecology and Management 196: 89-107.

Nadelhoffer, K. J., Downs, M. R., Fry, B. 1999. Sinks for 15N-enriched additions to an oak forest and a red pine plantation. Ecological Applications 9: 72-86.

Pardo, L. H., Templer, P. H., Goodale, C. L., Duke, S., Groffman, P. M., Adams, M. B., Boeckx, P., Boggs, J., Campbell, J. L., Compton, J. E., Emmett, B. A., Gundersen, P., Kjønaas, J., Lovett, G. M., Mack, M., Magill, A. H., Mitchell, M. J., Mbila, M., McGee, G., McNulty, S. G., Nadelhoffer, K. J., Colman, B. P., Ollinger, S. V., Ross, D., Rueth, H., Rustad, L. E., Schaberg, P., Schiff, S., Schleppi, P., Spoelstra, J., Wessel, W. 2006. Regional Assessment of N saturation using foliar and root d. Biogeochemistry 80: 143-171.

Rainey, S. M., Nadelhoffer, K. J., Silver, S. L., Downs, M. R. 1999. Effects of chronic nitrogen additions on understory species abundance and nutrient content in a red pine plantation. Ecological Applications 9: 949-957.

Robertson, G. P., Collins, S. L., Foster, D. R., Brokaw, N., Ducklow, H. W., Gragson, T. L., Gries, C., Hamilton, S. K., McGuire, A. D., Moore, J. C., Stanley, E. H., Waide, R. B., Williams, M. W. 2012. Long-Term ecological research in a human-dominated world. BioScience 62: 342-353.

Steudler, P. A., Bowden, R. D., Melillo, J. M., Aber, J. D. 1989. Influence of nitrogen fertilization on methane uptake in temperate forest soils. Nature 341: 314-316.

Tang, M. H., Porder, S., Lovett, G. M. 2012. Species differences in nitrate reductase activity are unaffected by nitrogen enrichment in northeastern U.S. forests. Forest Ecology and Management 275: 52-59.

Tonitto, C., Goodale, C. G., Weiss, M. S., Frey, S. D., Ollinger, S. V. 2014. The effect of nitrogen addition on soil organic matter dynamics: A model analysis of the Harvard Forest Chronic Nitrogen Amendment experiment and soil carbon response to anthropogenic N deposition. Biogeochemistry 117: 431-454.

Turlapati, S. A., Minocha, R., Bhiravarasa, P. S., Tisa, L. S., Thomas, W. K., Minocha, S. C. 2013. Chronic N-amended soils exhibit an altered bacterial community structure in Harvard Forest, MA, USA. FEMS Microbiology Ecology 83: 478-493.

Turlapati, S. A., Minocha, R., Long, S., Ramsdell, J., Minocha, S. C. 2015. Oligotyping reveals stronger relationship of organic soil bacterial community structure with N-amendments and soil chemistry in comparison to that of mineral soil at Harvard Forest, MA, USA. Frontiers in Microbiology 6: 49, 16 pp.

Van Diepen, L. T. A., Frey, S. D., Landis, E. A., Morrison, E. W., Pringle, A. 2017. Fungi exposed to chronic nitrogen enrichment are less able to decay leaf litter. Ecology 98: 5-11.

Van Diepen, L. T. A., Frey, S. D., Sthultz, C. M., Morrison, E. W., Minocha, R., Pringle, A. 2015. Changes in litter quality caused by simulated nitrogen deposition reinforce the N-induced suppression of litter decay. Ecosphere 6: art205.

Van de Broek, M., Riley, W. J., Tang, J., Frey, S. D., Schmidt, M. W. I. 2024. Thermal Adaptation of Enzyme-Mediated Processes Reduces Simulated Soil CO2 Fluxes Upon Soil Warming. Journal of Geophysical Research: Biogeosciences 129: e2024JG008619.

Venterea, R. T., Groffman, P. M., Verchot, L. V., Magill, A. H., Aber, J. D. 2004. Gross nitrogen process rates in temperate forest soils exhibiting symptoms of nitrogen saturation. Forest Ecology and Management 196: 129-142.

Venterea, R. T., Groffman, P. M., Verchot, L. V., Magill, A. H., Aber, J. D., Steudler, P. A. 2003. Nitrogen oxide gas emissions from temperate forest soils receiving long-term nitogen inputs. Global Change Biology 9: 346-357.

Vitousek, P. M., Aber, J. D., Bayley, S. E., Howarth, R. W., Likens, G. E., Matson, P. A., Schindler, D. W., Schlessinger, W. H., Tilman, G. D. 1997. Human alteration of the global nitrogen cycle: causes and consequences. Ecological Issues 1: 1-15.

Whalen, E. D. 2017. Manganese limitation as a mechanism for reduced decomposition in soils under long-term atmospheric nitrogen deposition. Thesis, University of New Hampshire.

Whalen, E. D., Smith, R. G., Grandy, A. S., Frey, S. D. 2018. Manganese limitation as a mechanism for reduced decomposition in soils under atmospheric nitrogen deposition. Soil Biology and Biochemistry 127: 252-263.

Wicklein, H. F., Ollinger, S. V., Martin, M. E., Hollinger, D. Y., Lepine, L. C., Day, M. C., Bartlett*, M. K., Richardson, A. D., Norby, R. J. 2012. Variation in foliar nitrogen and albedo in response to nitrogen fertilization and elevated CO2. Oecologia 169: 915-925.

Wieder, W. R., Pierson, D., Earl, S., Lajtha, K., Baer, S. G., Ballantyne, S., Berhe, A. A., Billings, S. A., Brigham, L. M., Chacon, S. S., Fraterrigo, J., Frey, S. D., Georgiou, K, de Graaff, M., Grandy, A. S., Hartman, M. D., Hobbie, S. E., Johnson, C., Kaye, J., Kyker-Snowman, E., Litvak, M. E., Mack, M. C., Malhotra, A., Moore, J. A. M., Nadelhoffer, K., Rasmussen, C., Silver, W. L., Sulman. B. N., Walker. X., Weintraub, S. 2021. SoDaH: the SOils DAta Harmonization database, an open-source synthesis of soil data from research networks, version 1.0. Earth System Science Data 13: 1843–1854.

Yano, Y., McDowell, W. H., Aber, J. D. 2000. Biodegradable dissolved organic carbon in forest soil solution and effects of chronic nitrogen deposition. Soil Biology and Biochemistry 32: 1743-1751.