Yan Zhifeng
School

School of Earth System Science

Professional Title

Professor

Discipline

Environmental geography

Contact Information

yanzf17@tju.edu.cn

Rm 610, Building No.16

300072

Brief Introduction

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


Education Background
  • Doctoral degree| Johns Hopkins University|  Environmental Engineering| 2014
  • Master’s Degree| Tsinghua University| 2010
  • Bachelor’s Degree| Wuhan University| 2007
Research Interests
  • 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
Professional Membership
  • 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
Positions & Employments
  • 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 
Academic Achievements
Team
Greenhouse gases and climate change
Our team dedicates to understand how water and carbon as well as nitrogen interact to control various ecological and environmental effects such as greenhouse gas (CO2, CH4, N2O) emissions and eutrophication. We combine field monitoring, lab experiments, and numerical simulations to understand the mechanisms controlling hydro-biogeochemical processes and predict their environmental impacts in future.