School of Earth System Science
Professor
Environmental geography
yanzf17@tju.edu.cn
Rm 610, Building No.16
300072
晏智锋,教授,博导,国家四青人才,毕业于美国约翰霍普金斯大学,主要从事地表碳氮过程及全球变化研究,侧重温室气体(CO2、CH4、N2O)产生与排放对全球变化的影响与响应。综合运用野外监测、室内试验及模型模拟研究环境中各种形态碳、氮的产生、迁移和转化,揭示宏观现象背后的微观机理,提高温室气体排放评估及气候变化预测的精度,在Nature Communications等期刊发表相关论文,欢迎感兴趣的研究生和本科生加入团队。另外,团队拟招聘助理研究员/博士后1-2名,长期招聘研究助理,也欢迎客座学生和老师来访问、交流。
气候变化是人类面临的重大挑战。大气中温室气体(CO2、CH4、N2O)含量增加是导致全球变暖的最主要因素,因此研究温室气体的产生过程与传输机制是应对全球变化、制定科学”增汇减排“政策的基础。本团队依托天津大学国家野外台站“环渤海滨海地球关键带国家野外科学观测研究站”,对野外土壤和水体温室气体排放时空格局进行长期监测,认识温室气体排放的时空演变规律及驱动机制,并提出科学假设。然后,基于室内控制实验,解析水文、气候、植被、土壤等环境要素对温室气体产生和排放的影响,揭示土壤和水体温室气体时空动态演化的控制机理。最后,基于野外监测和室内实验结果,构建土壤和水体温室气体排放的数值模型,模拟并预测其未来变化,形成评估报告,服务于国家”碳中和“战略目标。
研究思路图如下:
核心科学问题包括:
1)土壤有机碳周转(固存和释放)如何响应增温、降雨变化及人为扰动?
2)农业土壤氮循环及N2O排放如何响应降雨、施肥和农作管理变化?
3)水体脱氮、有机碳埋藏、温室气体(CO2、CH4、N2O)排放时空异变特征及驱动机制?
4)“土壤-水体”连续体C-N过程解析及模型构建与模拟
- Doctoral degree| Johns Hopkins University| Environmental Engineering| 2014
- Master’s Degree| Tsinghua University| 2010
- Bachelor’s Degree| Wuhan University| 2007
- Production, transport and reaction of GHG in soils
- Carbon and nitrogen cycles and their climatic and environmental impacts in aquatic ecosystems
- Integrating process-based models and AI techniques to study the interactions between C-N cycles and global changes
- 中国土壤学会青年工作委员会副主任委员
- Carbon Research, youth editorial board member, 2022-present
- 中国矿物岩石地球化学学会第十届地表与生物地球化学专业委员会委员
- 土壤学会碳中和与全球变化委员会委员
- Environmental Earth Sciences,Associate Editor
- Frontiers in Water, Associate Editor
- European Journal of Soil Science, guest editor,2021-2022
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2019.3-Now
School of Earth System Science | Tianjin University | Professor  -
2017.8-2019.3
School of Earth System Science | Tianjin University | Associate Professor  -
2014.11-2017.4
Geochemistry | Pacific Northwest National Laboratory | Post-doctor 
- Papers
- [1] Zhengkui Ge, Zhifeng Yan*, Mike Peacock, Baoxuan Chang, Yunyun Zhang, Wenxin Wu, Si-Liang Li, David Bastiviken, Cong-Qiang Liu. Village ponds are hotspots of CO2 and CH4 emissions regulated by biological communities. 2025. Environmental Pollution
- [2] Zihuan Fu, Yuxuan Zhang, Weiwen Qiu, Waqas Mohy-Ud-Din, Zhifeng Yan*, Yakov Kuzyakov. Fungal and bacterial necromass: Opposite drivers of mineral-associated organic carbon gains and losses. 2025. Soil and Tillage Research
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- [3] Jiawei Jiang, Zhifeng Yan*, Jinshi Jian, Shushi Peng, Hanqin Tian, Kendalynn A Morris, Robert M Ellam, Jesper Riis Christiansen, Huai Chen, Jianzhi Dong, Si‐Liang Li, Pingqing Fu, Dabo Guan, Guirui Yu, Cong‐Qiang Liu, Philippe Ciais, Ben Bond‐Lamberty. Global Soil Methane Uptake Estimated by Scaling Up Local Measurements. 2025. Global Change Biology
- [4] Xiaoqian He, Hui Wang, Xiaotang Ju, Zhifeng Yan*, Xia Zhu-Barker. Nitrifier denitrification can contribute to N2O emissions substantially in wet agricultural soil. 2025. Biology and Fertility of Soils
- [5] Weiwei Shi, Wenxin Wu, Hongxiang Fan, Qingqing Sun, Xueqi Niu, Shilu Wang, Si-liang Li, Shengkang Liang, Zhifeng Yan*. Estimating CO2 and CH4 fluxes from reservoirs: Model development and site-level study. 2025. Journal of Hydrology
- [6] Wu, Wenxin, Sophie A. Comer-Warner, Mike Peacock, Xingxing Han, Si-Liang Li, Xiaotang Ju, Cong-Qiang Liu, Pete Smith, and Zhifeng Yan. 2024. 'IPCC Emission Factor Overestimates N2O Emissions from Agricultural Ditches', Environmental Science & Technology.
- [7] Hui Wang, Zhifeng Yan*, Zengming Chen, Xiaotong Song, Jinbo Zhang, Si-Liang Li, Christoph Müller, Xiaotang Ju, Xia Zhu-Barker. Microbial ammonium immobilization promoted soil nitrogen retention under high moisture conditions in intensively managed fluvo-aquic soils. 2024. Biology and Fertility of Soils.
- [8] Xueqi Niu, Wenxin Wu*, Weiwei Shi, Zihuan Fu, Xingxing Han, Si-Liang Li, Zhifeng Yan*, 2024, Quantifying the contribution of methane diffusion and ebullition from agricultural ditches, Science of The Total Environment, 170912
- [9] Zihuan Fu, Zhifeng Yan*, Si-liang Li. 2024. Effects of soil pore structure on gas diffusivity under different land uses: Characterization and modelling. Soil and Tillage Research. Volume 237, 105988
- [10] Zhifeng Yan*, Baoxuan Chang, Xiaotong Song, Gangsheng Wang, Jun Shan, Liuqing Yang, Si-liang Li, Klaus Butterbach-Bahl, Xiaotang Ju, A microbial-explicit model with comprehensive nitrogen processes to quantify gaseous nitrogen production from agricultural soils, Soil Biology and Biochemistry, 2024, https://doi.org/10.1016/j.soilbio.2023.109284
- [11] Jilong Wang, Guirui Yu*, Lang Han*, Yuan Yao, Mingyu Sun, Zhifeng Yan, 2024, Ecosystem carbon exchange across China's coastal wetlands: Spatial patterns, mechanisms, and magnitudes, Agricultural and Forest Meteorology 345, 109859
- [12] Zihuan Fu, Zhifen Yan*, Yunqiang Wang*, 2023, The deep soil water dynamics and its environmental controls after long-term revegetation, Journal of Hydrology, Accepted
- [13] 牛雪琦、时巍巍、吴文欣、刘树伟、杨平、李思亮、晏智锋*. 2023. 内陆水体CH4冒泡排放研究进展. 地球科学进展.
- [14] Wenxin Wu, Xueqi Niu, Zhifeng Yan*, Siyue Li, Sophie A. Comer-Warner, Hanqin Tian, Si-Liang Li, Jianwen Zou, Guirui Yu, Cong-Qiang Liu. 2023. Agricultural Ditches are Hotspots of Greenhouse Gas Emissions Controlled by Nutrient Input. Water Research. 2023-06-26. DOI: 10.1016/j.watres.2023.120271
- [15] Zhifeng Yan, Zhe Wang, Zihuan Fu, Yonggen Zhang, Xinhua Peng, Jianqiu Zheng. Microscale heterogeneity controls macroscopic soil heterotrophic respiration by regulating resource availability and environmental stress. 2023, Biogeochemistry, P1-19
- [16] Hui Wang, Zhifeng Yan*, Xiaotang Ju, Xiaotong Song, Jinbo Zhang, Siliang Li, Xia Zhu-Barker, 2023, Quantifying nitrous oxide production rates from nitrification and denitrification under various moisture conditions in agricultural soils: Laboratory study and literature synthesis, Frontiers in Microbiology
- [17] Si-Liang Li, Xin Liu, Fu-Jun Yue, Zhifeng Yan, Tiejun Wang, Songjing Li, Cong-Qiang Liu, Nitrogen dynamics in the Critical Zones of China, 2022, Progress in Physical Geography: Earth and Environment
- [18] Baoxuan Chang, Zhifeng Yan*, Xiaotang Ju, Xiaotong Song, Yawei Li, Siliang Li, Pingqing Fu, Xia Zhu-Barker, 2022, Quantifying Biological Processes Producing Nitrous Oxide in Soil Using a Mechanistic Model, Biogeochemistry
- [19] Liang Wei, Tida Ge, Zhenke Zhu, Yu Luo, Yuanhe Yang, Mouliang Xiao, Zhifeng Yan, Yuhong Li, Jinshui Wu, Yakov Kuzyakov, 2021, Comparing carbon and nitrogen stocks in paddy and upland soils: Accumulation, stabilization mechanisms, and environmental drivers, Geoderma 398, 115121
- [20] Shaobo Sun, Tao Che, Pierre Gentine, Qiting Chen, Lichun Wang, Zhifeng Yan, Baozhang Chen, Zhaolong Song, 2021, Shallow groundwater inhibits soil respiration and favors carbon uptake in a wet alpine meadow ecosystem, Agricultural and Forest Meteorology
- [21] Ruichang Shen, Zhichun Lan, Jörg Rinklebe, Ming Nie, Qiwu Hu, Zhifeng Yan, Changming Fang, Bingsong Jin, Jiakuan Chen, 2021, Flooding variations affect soil bacterial communities at the spatial and inter-annual scales, Science of The Total Environment
- [22] He-Chun Piao, Si-Liang Li, Zhifeng Yan, Cai Li, 2020, Understanding nutrient allocation based on leaf nitrogen isotopes and elemental ratios in the karst region of Southwest China, Agriculture, Ecosystems & Environment
- [23] H Hu, J Wen, Z Peng, F Tian, G Ming, H Liu, Z Yan, M Yawar Ali Khan, 2020, Spatio‐temporal variations of soil moisture and salinity and their effects on cotton growth in a mulched drip irrigation field, Irrigation and Drainage
- [24] Cai Li, Si-Liang Li, Fu-Jun Yue, Jing Liu, Jun Zhong, Zhi-Feng Yan, Ruo-Chun Zhang, Zhong-Jun Wang, Sen Xu, 2019, Identification of sources and transformations of nitrate in the Xijiang River using nitrate isotopes and Bayesian model, Science of the Total Environment
- [25] Zhifeng Yan, B. Bond-Lamberty, K. Todd-Brown, V. Bailey, S. Li, C. Liu, and C. Liu*,2018,A Moisture Function of Soil Heterotrophic Respiration that Incorporates Microscale Processes,Nature Communications,9.
- [26] Zhifeng Yan, T. Wang, L. Wang, X. Yang, P. Smith, M. Hilpert, S. Li, J. Shang, V. Bailey, and C. Liu*,2018,Microscale Water Distribution and its Effects on Organic Carbon Decomposition in nsaturated Soils,Science of the Total Environment,644: 1036-1043.
- [27] Zhifeng Yan, S. Li, X. Yang, and M. Hilpert,2017,Two-Relaxation-Time Lattice Boltzmann Method and its Applications to Advective-Diffusive-Reactive Transport,Advances in Water Resources,109: 333-342.
- [28] Zhifeng Yan, C. Liu*, Y. Liu, and V. Bailey,2017,Multiscale Biofilm Distribution and its Impact on Macroscopic Biogeochemical Reaction Rates,Water Resources Research,53 (11): 8698-8714.
- [29] Zhifeng Yan, C. Liu*, K. Todd-Brown, Y. Liu, B. Bond-Lamberty, and V. Bailey,2016,Pore-scale Investigation on the Response of Heterotrophic Respiration to Moisture Conditions in Heterogeneous Soils,Biogeochemistry,131 (1-2): 121-134.
- [30] Zhifeng Yan*, E.J. Bouwer and M. Hilpert,2014,Coupled Effects of Chemotaxis and Growth on Traveling Bacterial Waves,Journal of Contaminant Hydrology,164: 138-152.
- [31] Zhifeng Yan* and M. Hilpert,2014,A Multiple-relaxation-time Lattice-Boltzmann Model for Bacterial Chemotaxis: Effects of Initial Concentration, Diffusion, and Hydrodynamic Dispersion on Traveling Bacterial Bands,Bulletin of Mathematical Biology,76 (10): 2449-2475.


- Honors & Awards
- [1] Fellowship, Johns Hopkins University
- [2] Lee and Albert H. Halff Doctoral Student Award
- [1] 华北平原农田沟渠温室气体排放时空格局及驱动机制,面上项目,42471117,国家自然科学基金委员会, 2025-2028
- [2] 地-气界面过程及环境气候效应,国家创新研究群体科学基金(No. 42221001,研究骨干,负责滨海地区地-气界面温室气体通量模拟与评估),国家自然科学基金委员会, 2023-2027
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- [3] Coupled Mechanisms of Carbon and Nitrogen in Estuary Wetlands
- [4] 国家四青(国家海外引进)人才项目,中央组织部,2019-2021
- [5] 土壤甲烷吸收的水分调控机制及其机理模型,面上项目,42077009,国家自然科学基金委员会, 2020-2024
- [6] 库区消落带温室气体排放机理研究,国家重点研发计划课题下属专题,中国科学技术部,2019.01~2021.06
- [7] 基于水化学和同位素解析斯里兰卡干旱地区慢性肾病高发区地下水水质变化规律,国际地区(合作)交流项目,2019-2021
- [8] 碳的生物地球化学过程:从空隙尺度到生态系统,美国能源部,2014.11~2017.04
- [9] 地下水和地表水交互作用带的生物地球化学过程,美国能源部,2014.11~2017.04