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During the past 15 years, there has been a dramatic increase in the amount of reactive nitrogen (N) in the atmosphere, leading to concerns that chronic elevated N deposition may result in negative effects on natural ecosystems. This study examines the response of jack pine (Pinus banksiana) plots to N air concentrations within the Athabasca Oil Sands Region (AOSR) in northern Alberta, which has experienced elevated N emissions since the 1990s. Air concentrations of nitrogen dioxide (NO2), ammonia, and nitric acid at the study plots are generally low although NO2 is strongly correlated with sulphur dioxide indicating an exposure gradient associated with industrial emissions. Nitrogen concentrations in P. banksiana foliage and two lichen indicator species (Hypogymnia physodes and Evernia mesomorpha) were significantly correlated with annual NO2 exposure. Relationships between NO2 (or N exposure) and other aspects of N cycling were less evident. Nitrogen content and carbon to nitrogen ratio in the forest floor and soil or potential net N mineralization rates were not correlated with N exposure. Nitrification was negligible suggesting efficient ecosystem immobilization of current N deposition. Based on the response of foliage to N exposure, sites closest to industrial activity appear to be in the early stages of N saturation. LAXTON, Dayna Lynn, Shaun A. WATMOUGH, Julian AHERNE, and Justin STRAKER. 2010. “An Assessment of Nitrogen Saturation in Pinus Banksiana Plots in the Athabasca Oil Sands Region, Alberta”. Journal of Limnology 69 (s1):171-80. https://doi.org/10.4081/jlimnol.2010.s1.171. More Citation Formats ACM ACS APA ABNT Chicago Harvard MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Downloads Download data is not yet available. Citations List of Cited By : Differential Effects of High Atmospheric N and S Deposition on Bog Plant/Lichen Tissue and Porewater Chemistry across the Athabasca Oil Sands Region R. Kelman Wieder, Melanie A. Vile, Kimberli D. Scott, Cara M. Albright, Kelly J. McMillen, Dale H. Vitt, Mark E. Fenn Environmental Science & Technology : 2016 Gross N transformations were little affected by 4years of simulated N and S depositions in an aspen-white spruce dominated boreal forest in Alberta, Canada Yi Cheng, Zu-cong Cai, Jin-bo Zhang, Scott X. Chang Forest Ecology and Management : 2011 Atmospheric deposition of nitrogen, sulfur and base cations in jack pine stands in the Athabasca Oil Sands Region, Alberta, Canada M.E. Fenn, A. Bytnerowicz, S.L. Schilling, C.S. Ross Environmental Pollution : 2015 An enhanced approach for the use of satellite-derived leaf area index values in dry deposition modeling in the Athabasca oil sands region Mervyn Davies, Sunny Cho, David Spink, Ron Pauls, Michael Desilets, Yan Shen, Kanwardeep Bajwa, Reid Person Journal of Environmental Management : 2016 Introduction to the virtual special issue monitoring ecological responses to air quality and atmospheric deposition in the Athabasca Oil Sands region the wood Buffalo environmental Association's Forest health monitoring program Kenneth R. Foster, Carla Davidson, Rajiv Neal Tanna, David Spink Science of The Total Environment : 2019 Four years of simulated N and S depositions did not cause N saturation in a mixedwood boreal forest ecosystem in the oil sands region in northern Alberta, Canada Kangho Jung, Scott X. Chang Forest Ecology and Management : 2012 Establishing trace element concentrations for lichens and bryophytes in the ring of fire region of the Hudson Bay Lowlands, Ontario, Canada Andrew M. McDonough, Adam W. Bird, Michael A. Luciani, Aaron K. Todd Environmental Monitoring and Assessment : 2022 Nitrogen Cycling in Pinus banksiana and Populus tremuloides Stands in the Athabasca Oil Sands Region, Alberta, Canada Dayna L. Laxton, Shaun A. Watmough, Julian Aherne Water, Air, & Soil Pollution : 2012 Eleven years of simulated deposition of nitrogen but not sulfur changed species composition and diversity in the herb stratum in a boreal forest in western Canada Jin-Hyeob Kwak, Scott X. Chang, M. Anne Naeth Forest Ecology and Management : 2018 Nitrogen deposition and climate effects on soil nitrogen availability: Influences of habitat type and soil characteristics E.C. Rowe, B.A. Emmett, Z.L. Frogbrook, D.A. Robinson, S. Hughes Science of The Total Environment : 2012 Critical loads of acidity for 90,000 lakes in northern Saskatchewan: A novel approach for mapping regional sensitivity to acidic deposition H. Cathcart, J. Aherne, D.S. Jeffries, K.A. Scott Atmospheric Environment : 2016 Forest Fertilization Associated with Oil Sands Emissions Shaun A. Watmough, Adam Bird, Andrew McDonough, Eric Grimm Ecosystems : 2019 Ecophysiological response of aspen (Populus tremuloides) and jack pine (Pinus banksiana) to atmospheric nitrogen deposition on reconstructed boreal forest soils in the Athabasca oil sands region T.L. Hemsley, M.D. MacKenzie, S.A. Quideau Science of The Total Environment : 2019 Simulated N and S deposition affected soil chemistry and understory plant communities in a boreal forest in western Canada Kangho Jung, Jin-Hyeob Kwak, Frank S Gilliam, Scott X Chang Journal of Plant Ecology : 2018 The importance of atmospheric base cation deposition for preventing soil acidification in the Athabasca Oil Sands Region of Canada Shaun A. Watmough, Colin J. Whitfield, Mark E. Fenn Science of The Total Environment : 2014 Forest health effects due to atmospheric deposition: Findings from long-term forest health monitoring in the Athabasca Oil Sands Region Carla J. Davidson, Kenneth R. Foster, Rajiv N. Tanna Science of The Total Environment : 2020 Bog plant/lichen tissue nitrogen and sulfur concentrations as indicators of emissions from oil sands development in Alberta, Canada R. Kelman Wieder, Melanie A. Vile, Kimberli D. Scott, Cara M. Albright, James C. Quinn, Dale H. Vitt Environmental Monitoring and Assessment : 2021 Ecological Risks from Atmospheric Deposition of Nitrogen and Sulphur in Jack Pine forests of Northwestern Canada Nicole Vandinther, Julian Aherne Nitrogen : 2023 Patterns of δ15N in forest soils and tree foliage and rings between climate zones in relation to atmospheric nitrogen deposition: A review Woo-Jung Choi, Hyun-Jin Park, Nuri Baek, Hye In Yang, Jin-Hyeob Kwak, Sun-Il Lee, Seo-Woo Park, Eun-Seo Shin, Sang-Sun Lim Science of The Total Environment : 2023 Foliage Chemistry of Pinus baksiana in the Athabasca Oil Sands Region, Alberta, Canada Bernadette Proemse, Doug Maynard, Bernhard Mayer Forests : 2016 Biogeochemical responses to multiyear above-canopy applications of nitrogen at a jack pine (Pinus banksiana) forest in northern Alberta, Canada Andrew M. McDonough, Shaun A. Watmough, Adam W. Bird Canadian Journal of Forest Research : 2023 Are bog plant/lichen tissue concentrations of Ca, Mg, K, and P affected by fugitive dust released from oil sands development in the Fort McMurray region of Alberta? R. Kelman Wieder, Kimberli D. Scott, Melanie A. Vile, Caitlyn Herron Science of The Total Environment : 2022 Limiting factors for lodgepole pine (Pinus contorta) and white spruce (Picea glauca) growth differ in some reconstructed sites in the Athabasca oil sands region Min Duan, Jason House, Scott X. Chang Ecological Engineering : 2015 Can plant or lichen natural abundance 15N ratios indicate the influence of oil sands N emissions on bogs? R. Kelman Wieder, Melanie A. Vile, Dale H. Vitt, Kimberli D. Scott, Bin Xu, James C. Quinn, Cara M. Albright Journal of Hydrology: Regional Studies : 2022 A regional approach for mineral soil weathering estimation and critical load assessment in boreal Saskatchewan, Canada Colin J. Whitfield, Shaun A. 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