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刘学炎

性别：男

职称：教授

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教育经历

  • · 1999.9 - 2003.7

    贵州师范大学   - 地理系   - 学士

  • · 2003.9 - 2008.7

    中国科学院地球化学研究所   - 地球化学   - 博士

工作经历

  • · 2024.11- 至今

    环境地球化学国家重点实验室 → 中国科学院地球化学研究所 

  • · 2015.3 - 2024.10

    表层地球系统科学研究院 → 天津大学 → 教授 

  • · 2014.4 - 2015.2

    环境地球化学国家重点实验室 → 中国科学院地球化学研究所 → 副研究员 

  • · 2011.12 - 2014.3

    生物圈环境科学系 → 东京农业与工业大学 → 博士后（JSPS下一代世界领先科学家项目） 

  • · 2009.11 - 2011.11

    生物圈环境科学系 → 东京农业与工业大学 → JSPS海外博士后 

  • · 2008.5 - 2009.11

    环境地球化学国家重点实验室 → 中国科学院地球化学研究所 → 助理研究员 

研究方向

  • · 大气系统活性氮来源和过程

  • · 陆地系统氮生物地球化学

授课信息

个人简介

刘学炎，讲席教授，博导

国家杰青（2021）和创新群体骨干（2022）、优青（2015），天津市首批杰青（2017），主持国家自然科学重点基金（2017、2023）、IAEA降水氮同位素研究课题（2018）、国家重点研发计划‘大气污染与防治’专项课题，参加‘全球变化与应对’和“大气与土壤、地下水污染综合治理”专项等。

地球系统氮循环的变化深刻影响地质和现代时间尺度的环境质量和生态功能。团队致力于氮同位素自然丰度（方法、分馏、模型）、硝酸根氧同位素方法原理以及地球系统氮来源和过程的同位素示踪与模拟研究，目前已在大气系统和植被系统氮素过程研究中取得原创成果，为氮循环效应评估和活性氮管理提供了新的科学依据。

课题组招聘博士后和科研助理，请邮件咨询liuxueyan@tju.edu.cn

 

Main publications

方向一：陆地系统氮生物地球化学（Terrestrial N biogeochemistry）

  1. Chao-Chen Hu, Chen-Guang Tian, Chong-Juan Chen, Wei Song, Xu Yue, Xue-Yan Liu* (2025) Increased carbon cost for nitrogen assimilation in plants under a warming climate. Nature Geoscience, doi:10.1038/s41561-025-01816-y.

  2. Ya-Xin Yan, Chao-Chen Hu, Yan-Bao Lei, Yun-Hong Tan, Xue-Yan Liu* (2025) Carbon isotope constraints on plant water use efficiency in a tropical invaded ecosystem. Journal of Geophysical Research: Biogeosciences, 130, 10, e2025JG008997.

  3. Wei-Guo Fan, Ming-zhong Zhou, Wei Song, Xue-Yan Liu*. (2025) Nitrogen and oxygen isotopes of shale nitrate recorded soil nitrate biogeochemistry under arid paleoclimates. Global Biogeochemical Cycles, DOI: 10.1029/2024GB008419.

  4. Chen CJ, Liu XY*, Hu CC, Xu SQ, Wang XW, Mao R, Koba K. (2025) Inorganic nitrogen nutrition in boreal plants is underestimated and insensitive to environmental changes. Earth's Future, DOI: 10.1029/2024EF005723.

  5. Zhong-Cong Sun, Shi-Qi Xu, Hao-Ran Guo, Chao-Chen Hu, Wei Song, Xue-Yan Liu*. (2025) Atmospheric N deposition as a key driver of soil nitrate production and accumulation in temperate forests under semi-arid climate. Geophysical Research Letters, DOI: 10.1029/2025GL117029.

  6. Wei-Guo Fan, Xue-Yan Liu*, Ming-zhong Zhou, Wei Song, Yongyun Hu, Yanan Shen, Cong-Qiang Liu. (2024) Sedimentary 17O-nitrate evidence for Phanerozoic aridity and humidity oscillations in South China. Geophysical Research Letters, DOI: 10.1029/2024gl111475.

  7. Chao-Chen Hu, Xue-Yan Liu*, Avery W. Driscoll, Yuan-Wen Kuang, E. N. Jack Brookshire, Xiao-Tao Lü, Chong-Juan Chen, Wei Song, Rong Mao, Cong-Qiang Liu, Benjamin Z Houlton. (2024) Global distribution and drivers of relative contributions among soil nitrogen sources to terrestrial plants. Nature Communications, 15, 6407. https://doi.org/10.1038/s41467-024-50674-6.

  8. Xue-Yan Liu*, Mei-Na Liu, Wan-Xiao Qin, Wei Song. (2023) Isotope constraints on nitrate exchanges between precipitation and forest canopy. Global Biogeochemical Cycles, 37, e2023GB007920. https://doi.org/10.1029/2023GB007920.

  9. Chao-Chen Hu, Xue-Yan Liu*. (2022) Plant nitrogen-use strategies and their responses to the urban elevation of atmospheric nitrogen deposition in southwestern China.  Environmental Pollution, 31, 119969. https://doi.org/10.1016/j.envpol.2022.119969.

  10. Zhong-Cong Sun, Tian-Yi Ma, Shi-Qi Xu, Hao-Ran Guo, Chao-Chen Hu, Chong-Juan Chen, Wei Song, Xue-Yan Liu*. (2022) Levels and variations of soil bioavailable nitrogen among forests under high atmospheric nitrogen deposition. Science of the Total Environment, 838, 156405.

  11. Hao-Ran Guo, Yun Wu, Chao-Chen Hu, Xue-Yan Liu*. (2022) Elevated nitrate preference over ammonium in aquatic plants by nitrogen loadings in a city river. Journal of Geophysical Research: Biogeosciences, DOI: 10.1029/2021JG006614.

  12. Shi-Qi Xu, Xue-Yan Liu*, Zhong-Cong Sun, Chao-Chen Hu, Wolfgang Wanek, Keisuke Koba. (2022) Isotopic elucidation of microbial nitrogen transformations in forest soils. Global Biogeochemical Cycles, DOI: 10.1029/2021GB007070.

  13. Chao-Chen Hu, Xue-Yan Liu*, Ya-Xin Yan,Yan-Bao Lei, Yun-Hong Tan, Cong-Qiang Liu. (2022) A new isotope framework to decipher leaf-root nitrogen allocation and assimilation among plants in a tropical invaded ecosystem. Science of the Total Environment, 86, 151203. https://doi.org/10.1016/j.scitotenv.2021.151203.

  14. Chen CJ, Liu XY*, Wang XW, Hu CC, Xu SQ, Mao R, Bu ZJ, Fang YT, Koba K. (2021) Different leaf carbon, nitrogen, and phosphorus stoichiometry and carbon and nitrogen isotopes among peatland plants in northeastern China. Plant and Soil, 467: 345–357.

  15. Zhong-Cong Sun, Chao-Chen Hu, Di Wu, Guo-Peng Chen, Xiao-Qiang Lu*, Xue-Yan Liu*. (2021) Reconstruction of evaporation losses based on stable isotopes of stream water in a mountain watershed. Acta Geochimica, 40 (2): 176-183. 

  16. Liu XY*, Wu D, Song X, Dong YP, Chen CJ, Song W, Liu CQ, Koba K. (2020) A non-steady state model based on dual nitrogen and oxygen isotopes to constrain moss nitrate uptake and reduction. Journal of Geophysical Research: Biogeosciences, 125(6): e2019JG005498. doi.org/10.1029/2019JG005498.

  17. Wu D, Wang XW, Xu SQ, Chen CJ, Mao R, Liu XY*. (2020) Plant phenols contents and their changes with nitrogen availability in peatlands of northeastern China. Journal of Plant Ecology, 13 (6): 713–721.

  18. Ma TY, Liu XY*, Xu SQ, Guo HR, Huang H, Hu CC, Wu D, Sun ZC, Chen CJ, Song W. (2020) Levels and variations of soil organic carbon and total nitrogen among forests in a hotspot region of high nitrogen deposition. Science of the Total Environment, 713, 136620. doi.org/10.1016/j.scitotenv.2020.136620.

  19. Hu CC, Lei YB, Tan YH, Sun XC, Xu H, Liu CQ, Liu XY*. (2019) Plant nitrogen and phosphorus utilization under invasive pressure in a montane ecosystem of tropical China. Journal of Ecology, 107: 372–386

  20. Dong YP, Huang H, Song W, Sun XC, Wang M, Zhang W, Wang KL, Liu CQ, Liu XY*. (2019) Natural 13C and 15N abundance of moss-substrate systems on limestones and sandstones in a karst area of subtropical China. Catena, 180: 8–15.

  21. Liu XY*, Koba K*, Koyama L, Hobbie SE, Weiss MS, Inagaki Y, Shaver GR, Giblin AE, Hobara S, Nadelhoffer KJ, Sommerkorn M, Rastetter EB, Kling GW, Laundre JA, Yano Y, Makabe A, Yano M, Liu CQ. (2018) Nitrate is an important nitrogen source for arctic tundra plants. PNAS, 115(13): 3398–3403.

  22. Cao YH, Lu CY*, Sun XC, Shi Y, Liu XY*. (2018) Effects of elevated ozone on the contribution of nitrogen rhizodeposition by spring wheat to different soil N pools. Plant and Soil, 425: 321–333.

  23. Sun XC*, Onda Y, Otsuki K, Kato H, Gomi T, Liu XY*. (2018) Effect of canopy openness and meteorological factors on throughfall isotopic compositions in a Japanese cypress. Hydrological Processes, 32: 1038–1049.

  24. Sun XC*, Onda Y, Otsuki K, Kato H, Gomi T, Liu XY*. (2017) Change in evapotranspiration partitioning after heavy thinning in a Japanese cypress plantation. Trees-Structure and Function, 31: 1411–1421.

  25. Sun XC*, Onda Y, Kato H, Gomi T, Liu XY*. (2017) Estimation of throughfall with changing stand structures for Japanese cypress and cedar plantations. Forest Ecology and Management, 402: 145–156.

  26. Liu XY*, Koba K, Makabe A, Liu CQ. (2014). Nitrate dynamics in natural plants: Insights based on the concentration and natural isotope abundances of tissue nitrate. Frontiers in Plant Science, 5: 355. doi: 10.3389/fpls.2014.00355.

  27. Liu XY, Koba K*, Makabe A, Li XD, Yoh M, Liu CQ. (2013) Ammonium first: natural mosses prefer atmospheric ammonium but vary utilization of dissolved organic nitrogen depending on habitat and nitrogen deposition. New Phytologist, 199(2): 407–419.

  28. Liu XY, Koba K*, Takebayashi Y, Liu CQ, Fang YT, Yoh M. (2013). Dual N and O isotopes of nitrate in natural plants: first insights into individual variability and organ-specific pattern. Biogeochemistry, 114: 399–411.

  29. Liu XY, Koba K*, Liu CQ, Li XD, Yoh M. (2012). Pitfalls and new mechanisms in moss isotope bio-monitoring of atmospheric nitrogen deposition. Environmental Science & Technology, 46(22): 12557–12566.

  30. Liu XY, Koba K*, Takebayashi Y, Liu CQ, Fang YT, Yoh M. (2012) Preliminary insights into δ15N and δ18O of nitrate in natural mosses: A new application of the denitrifier method. Environmental Pollution, 162: 48–55.

  31. Liu XY, Koba K*, Yoh M, Liu CQ. (2012). Nitrogen and oxygen isotope effects of tissue nitrate associated with nitrate acquisition and utilization in the moss Hypnum plumaeforme. Functional Plant Biology, 39(7): 598–608.

  32. Liu XY*, Xiao HY, Liu CQ. (2011) Physiological and isotopic signals in epilithic mosses for indicating anthropogenic sulfur on the urban-rural scale. Ecological Indicators, 11: 1245–1250.

  33. Liu XY*, Xiao HY, Liu CQ, Li YY, Xiao HW, Wang YL. (2010) Response of stable carbon isotope in epilithic mosses to atmospheric nitrogen deposition. Environmental Pollution, 158: 2273–2281.

  34. Liu XY*, Xiao HY*, Liu CQ, Li YY, Xiao HW. (2008) Stable carbon and nitrogen isotopes of the moss Haplocladium microphyllum in an urban and a background area (SW China): the role of environmental conditions and atmospheric nitrogen deposition. Atmospheric Environment, 42(21): 5413–5423.

  35. Liu XY, Xiao HY*, Liu CQ, Li YY. (2007) δ13C and δ15N of moss (Haplocladium microphyllum (Hedw.) Broth) for indicating environment variations and canopy retention on atmospheric nitrogen deposition. Atmospheric Environment, 41(23): 4897–4907. (Highlighted by Nature China: Bio-indicators: A mossy start).

  36. 胡雯恵，陈润玉, 刘学炎*. (2025) 藓类植物铵根和硝酸根吸收能力差异. 地球与环境. 待刊.

  37. 宋韦，刘学炎*. (2024) 地⁃气系统活性氮来源与转化的同位素示踪研究进展. 应用生态学报, 35(9): 1-10. 

  38. 陈润玉, 胡雯恵，刘学炎*. (2024) 应用离子吸收动力学方法比较鹿蕊地衣对不同氮素的吸收能力. 应用生态学报, 35(7)：DOI: 10.13287/ j.1001-9332.202407.016.

  39. 孔凯, 孙众从, 马天翼, 刘学炎*. (2023) 京津冀地区森林土壤酚含量及其变化机制. 应用与环境生物学报, 29(6): DOI: 10.19675/j.cnki.1006-687x.2023.04024.

  40. 吴云，胡朝臣，刘学炎*. (2021) 城市河流水生植物氮含量和氮同位素记录及其对水体氮污染的响应. 地球与环境，3: 260-269.

  41. 许浩，胡朝臣，许士麒，孙新超，刘学炎*. (2018) 外来植物入侵对土壤氮有效性的影响，植物生态学报，42(11): 1120–1130.

  42. 李瑞，胡朝臣，许士麒，吴迪，董玉平，孙新超，毛瑢，王宪伟*，刘学炎*. (2018) 大兴安岭泥炭地植物叶片碳氮磷含量及其化学计量学特征. 植物生态学报，42(12): 1154–1167.

  43. 胡朝臣，刘学炎*，类延宝，谭运洪，张鹏，董玉平，刘丛强. (2016) 西双版纳外来入侵植物及其共存种叶片氮、磷化学 计量特征. 植物生态学报，40(11): 1145–1153.

  44. 刘学炎*，肖化云，刘丛强，肖红伟. 石生苔藓碳含量和碳同位素对城市地区人为二氧化碳和大气氮沉降变化的响应. 环境科学, 2009, 30(1): 23–28.

  45. 刘学炎，刘丛强.  大气氮沉降的苔藓地球化学记录（第四章）. 生物地球化学过程与地表物质循环–西南喀斯特土壤-植被系统生源要素循环（刘丛强 等著）. 北京：科学出版社. 2009, pp: 157–214.

  46. 刘学炎，肖化云*，刘丛强，李友谊. 碳氮稳定同位素指示苔藓生境特征以及树冠对大气氮沉降的吸收. 地球化学, 2007, 36(3): 286–294.

  47. 刘学炎，肖化云*，刘丛强，李友谊. 苔藓新老组织及其根际土壤的碳氮元素含量和同位素组成（d13C和d15N）对比. 植物生态学报，2007, 31(6): 1168–1173.

    方向二：大气系统活性氮来源和过程（Atmospheric N sources and processes）

  48. Zhi-Li Chen, Yan Qiu, Wei Song, Xue-Yan Liu*. (2025) Responses of atmospheric inorganic nitrogen deposition to emissions in a polluted region of southern China. Atmospheric Research, 319, 108026.

  49. Xue-Yan Liu*. (2023) Ammonia mitigation campaign with smallholder farmers. Nature Food, https://doi.org/10.1038/s43016-023-00839-1.

  50. Wei Song, Xue-Yan Liu*. (2023) Nitrogen isotope signatures of oxidized nitrogen species from biomass burning. Applied Geochemistry, 150, 105569.

  51. Wei Song, Zhi-Li Chen, Yi-Meng Yin, Xue-Yan Liu*. (2023) Primary nitrate from combustion-related sources biases the Δ17O differentiation of formation pathway contributions of atmospheric secondary nitrate. Atmospheric Environment, 296, 119574. https://doi.org/10.1016/j.atmosenv.2022.119574.

  52. Wei Song, Xue-Yan Liu*. (2023) Source oxygen contributions of primary nitrate emitted from biomass burning. Science of the Total Environment, 85, 158736, 10.1016/j.scitotenv.2022.158736.

  53. Zhi-Li Chen, Wei Song, Chao-Chen Hu, Xue-Jun Liu, Guan-Yi Chen, Wendell W. Walters, Greg Michalski, Cong-Qiang Liu, David Fowler, Xue-Yan Liu*. (2022) Significant contributions of combustion-related sources to ammonia emissions. Nature Communications, 7710, https://doi.org/10.1038/s41467-022-35381-4. Fulltext link: https://www.nature.com/articles/s41467-022-35381-4.

  54. Wei Song, Xue-Yan Liu*, Benjamin Z. Houlton, Cong-Qiang Liu. (2022) Isotopic constraints confirm the significant role of microbial nitrogen oxides emissions from the land and ocean environment. National Science Review, nwac106, https://doi.org/10.1093/nsr/nwac106. Fulltext link: https://academic.oup.com/nsr/article/9/9/nwac106/6601396 

  55. Song W, Liu XY*, Liu CQ. (2021). New constraints on isotopic effects and major sources of nitrate in atmospheric particulates by combining δ15N and Δ17O signatures. Journal of Geophysical Research: Atmospheres, 126 (16): e2020JD034168. https://doi.org/10.1029/2020JD034168

  56. Huang H, Song W, Liu XY*. (2021). Significant contributions of combustion NH3 and non-fossil fuel NOx to increases of nitrogen deposition in southwestern China over past five decades. Global Change Biology, 27 (18): 4392-4402.

  57. Xu SY, Huang H, Song W, Liu XY*. (2021) Lichen nitrogen concentrations and isotopes for indicating nitrogen deposition levels and source changes. Science of the Total Environment, 787: 147616. https://doi.org/10.1016/j.scitotenv.2021.147616.

  58. Song W, Liu XY*, Hu CC, Chen GY, Liu XJ, Walters WW, Michalski G, Liu CQ. (2021) Important contributions of non-fossil fuel nitrogen oxides emissions. Nature Communications, 12: 243. https://doi.org/10.1038/s41467-020-20356-0. Fulltext link: https://www.nature.com/articles/s41467-020-20356-0 

  59. Liu XY*, Yin YM, Song W. (2020) Nitrogen isotope differences between major atmospheric NOy species: Implicat  ions for transformation and deposition processes. Environmental Science & Technology Letters, 7(4), 227–233.

  60. Zhang CH, Guo HR, Huang H, Ma TY, Song W, Chen CJ, Liu XY*. (2020) Atmospheric nitrogen deposition and its responses to anthropogenic emissions in a global hotspot region. Atmospheric Research, 248: 105317. https://doi.org/10.1016/j.atmosres.2020.105137. 

  61. Song W, Liu XY*, Wang YL, Tong YD, Bai ZP, Liu CQ. (2020) Nitrogen isotope differences between atmospheric nitrate and corresponding nitrogen oxides: A new constraint using oxygen isotopes. Science of the Total Environment, 701, 134515. https://doi.org/10.1016/j.scitotenv.2019.134515.

  62. Song W, Wang YL, Yang W, Sun XC, Tong YD, Wang XM, Liu CQ, Bai ZP*, Liu XY*. (2019) Isotopic evaluation on relative contributions of major NOx sources to nitrate of PM2.5 in Beijing. Environmental Pollution, 248: 183–190.

  63. Wang YL, Song W, Yang W, Sun XC, Tong YD, Wang XM, Liu CQ, Bai ZP*, Liu XY*. (2019) Influences of atmospheric pollution on the contributions of major oxidation pathways to PM2.5 nitrate formation in Beijing. Journal of Geophysical Research: Atmospheres, 124: 4174–4185.

  64. Zheng XD, Liu XY*, Song W, Sun XC, Liu CQ. (2018) Nitrogen isotope variations of ammonium across rain events: Implications for different scavenging between ammonia and particulate ammonium. Environmental Pollution, 239: 392–398.

  65. Dong YP, Liu XY*, Sun XC*, Song W, Zheng XD, Li R, Liu CQ. (2017) Inter-species and intra-annual variations of moss nitrogen utilization: implications for nitrogen deposition assessment. Environmental Pollution, 230: 506–515.

  66. Wang YL, Liu XY*, Song W, Yang W, Han B, Dou XY, Zhao XD, Song ZL, Liu CQ, Bai ZP*. (2017) Source appointment of nitrogen in PM2.5 based on bulk δ15N signatures and a Bayesian isotope mixing model. Tellus B: Chemical and Physical Meteorology, 69:1, 1299672, DOI: 10.1080/16000889.2017.1299672.

  67. Liu XJ*, Xu W, Duan L, Du EZ, Pan YP, Lu XK, Zhang L, Wu ZY, Wang XM, Zhang Y, Shen JL, Song L, Feng ZZ, Liu XY, Song W, Tang AH, Zhang YY, Zhang XY, Collett JL. (2017) Atmospheric nitrogen emission, deposition, and air quality impacts in China: An overview. Current Pollution Reports, 3: 65–77. (All authors contributed equally).

  68. Liu XY*, Xiao HW, Xiao HY*, Song W, Sun XC, Zheng XD, Liu CQ, Keisuke Koba. (2017) Stable isotope analyses of precipitation nitrogen sources in Guiyang, southwestern China. Environmental Pollution, 230: 486–494.

  69. Liu XY*, Xiao HY, Liu CQ, Xiao HW, Wang YL. (2009) Assessment of atmospheric sulfur with the epilithic moss Haplocladium microphyllum: Evidences from tissue sulfur and δ34S analysis. Environmental Pollution, 157: 2066–2071.

  70. Liu XY*, Xiao HY*, Liu CQ, Li YY, Xiao HW. (2008) Atmospheric transport of urban-derived NHx: Evidences from nitrogen concentration and δ15N in epilithic mosses at Guiyang, SW China. Environmental Pollution, 156(3): 715–722.

  71. Liu XY*, Xiao HY*, Liu CQ, Li YY, Xiao HW. (2008) Tissue nitrogen and 15N natural abundance in epilithic mosses for indicating atmospheric N deposition at Guiyang area, SW China. Applied Geochemistry, 23(9): 2708–2715.

  72. 张琨, 宋韦, 陈志立, 刘学炎*. (2023) 新加坡和胡志明城区降水离子组成及来源分析. 地球与环境, 52(3): 309–320.

  73. 刘美娜，陈志立，宋韦，刘学炎*. (2022) 北京东灵山大气氮沉降水平及变化特征. 生态学杂志, 12: 2987–2997.

  74. 刘学炎*，肖化云，刘丛强，唐从国. 基于石生苔藓氮含量量化贵阳地区大气氮沉降. 生态学报，2009, 29(12): 6646–6653.

  75. 刘学炎*，肖化云，刘丛强，李友谊，李琳. 石生苔藓氮含量和氮同位素指示贵阳地区大气氮沉降的空间变化和来源. 环境科学, 2008, 29(7): 34–39.

  76. 刘学炎*，肖化云，刘丛强，肖红伟. 生长条件对苔藓硫含量和硫同位素指示大气硫沉降的影响. 环境科学研究, 2008, 21(5): 145–149.

  77. 刘学炎，肖化云*，刘丛强，肖红伟. 贵阳地区主要大气氮源的沉降机制与分布：基于石生苔藓氮含量和氮同位素的证据. 地球化学, 2008, 37(5): 455–461.

  78. 刘学炎，肖化云*，刘丛强，李友谊. 植物叶片氮同位素（d15N）指示大气氮沉降的探讨. 矿物岩石地球化学通报, 2007, 26(4): 405–409.

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