主要研究方向：森林生态系统碳氮循环。
主要开展森林生态系统大气沉降氮去向和再分配、成年大树氮吸收策略、不同类型土壤反硝化作用分馏系数和东北温带森林“增材增汇”等研究。主持国家自然科学基金青年基金1项、中国科学院科研仪器设备研制项目子课题1项。目前，已发表期刊论文11篇，其中SCI论文10篇。作为第一作者或共同一作在Global Change Biology、New Phytologist等期刊发表SCI论文6篇。
主持参与项目
1.《不同类型土壤反硝化作用分馏系数的研究》（国家自然科学基金青年项目，主持，2020.01-2022.12）；
2.《基于法拉第磁光旋转光谱大气NOx双组分测定和涡度相关通量测量系统研制》子课题《温带森林土壤NO释放通量的观测》（中国科学院科研仪器设备研制项目，主持，2020.01-2021.12）
3.《美丽中国生态文明建设科技工程》子课题《"绿水青山"提质增效与乡村振兴关键技术与示范》（中国科学院战略性先导科技专项（A类）项目，参与，2019.01-2023.12）;
4.《升温和氮沉降对我国东北森林典型树种菌根真菌介导的植物氮吸收和碳分配的影响》（国家自然科学基金面上项目，参与，2018.01-2021.12）；
5.《时空变化过程约束的地理视频大数据语义增强方法》（国家自然科学基金青年科学基金项目，参与，2018.01-2020.12）；
学术论文发表情况
1. Wang, A., Chen, D., Phillips, O.L., Gundersen, P., Zhou, X., Gurmesa, G.A., Li, S., Zhu, W., Hobbie, E.A., Wang, X., Fang, Y.* (2021) Dynamics and multi-annual fate of atmospherically deposited nitrogen in montane tropical forests. Global Change Biology 27, 2076-2087.
2. Zhou, X.#, Wang, A.#, Hobbie, E.A., Zhu, F., Qu, Y., Dai, L., Li, D., Liu, X., Zhu, W., Koba, K., Li, Y.*, Fang, Y.* (2021) Mature conifers assimilate nitrate as efficiently as ammonium from soils in four forest plantations. New Phytologist 229.
3. Zhou, X.#, Wang, A.#, Hobbie, E.A., Zhu, F., Wang, X., Li, Y.*, Fang, Y.* (2021) Nitrogen uptake strategies of mature conifers in Northeastern China, illustrated by the N-15 natural abundance method. Ecological Processes 10.
4. Zhou, W.#, Xi, D.#, Fang, Y.*, Wang, A., Sha, L., Song, Q., Liu, Y., Zhou, L., Zhou, R., Lin, Y., Gao, J., Balasubramanian, D., Lin, L., Chen, H., Deng, Y., Zhang, W., Zhang, Y.* (2021) Microbial processes responsible for soil N2O production in a tropical rainforest, illustrated using an in situ N-15 labeling approach. Catena 202.
5. Zhu, F. #, Dai, L. #, Hobbie, E.A., Qu, Y., Huang, D., Gurmesa, G.A., Zhou, X., Wang, A., Li, Y., Fang, Y.* (2021) Quantifying nitrogen uptake and translocation for mature trees: an in situ whole tree paired 15N labeling method. Tree Physiology.
6. Su, C.#, Kang, R.#, Zhu, W., Huang, W., Song, L., Wang, A., Liu, D., Quan, Z., Zhu, F., Fu, P., Fang, Y.* (2020) Delta N-15 of nitric oxide produced under aerobic or anaerobic conditions from seven soils and their associated N isotope fractionations. Journal of Geophysical Research-Biogeosciences 125.
7. 方运霆*, 刘冬伟, 朱飞飞, 图影, 李善龙, 黄韶楠, 全智, 王盎. 氮稳定同位素技术在陆地生态系统氮循环研究中的应用(生态技术与方法专辑), 植物生态学报, 2020, 44 (4): 373-383.
8. Li, S.#, Gurmesa, G.A.#, Zhu, W., Gundersen, P., Zhang, S., Xi, D., Huang, S., Wang, A., Zhu, F., Jiang, Y., Zhu, J., Fang, Y.* (2019) Fate of atmospherically deposited NH4+ and NO3- in two temperate forests in China: temporal pattern and redistribution. Ecological Applications 29.
9. Wang, A., Fang, Y.*, Chen, D.*, Phillips, O., Koba, K., Zhu, W., Zhu, J. (2018) High nitrogen isotope fractionation of nitrate during denitrification in four forest soils and its implications for denitrification rate estimates. Science of the Total Environment 633, 1078-1088.
10. Wang, A., Zhu, W., Gundersen, P., Phillips, O.L., Chen, D.*, Fang, Y.* (2018) Fates of atmospheric deposited nitrogen in an Asian tropical primary forest. Forest Ecology and Management 411, 213-222.
11. Wang, A., Fang, Y.*, Chen, D.*, Koba, K., Makabe, A., Li, Y., Luo, T., Yoh, M. (2014) Variations in nitrogen-15 natural abundance of plant and soil systems in four remote tropical rainforests, southern China. Oecologia 174, 567-580.