研究领域 利用环境同位素18O和D、15N、水化学、以及地下水年龄示踪方法（ CFCs ，3H和14C等），揭示与模拟区域生态水文过程、地表水/地下水交换、区域水环境演化过程。 农田生态系统水热、碳、氮通量及其相互作用过程与机理研究。包括定位监测和碳氮循环的生物地球化学过程研究。 农田生态系统有机污染状况及其在土壤、地表水、地下水中的演化机理。 科研项目 1. 华北农田生态系统水、物质迁移机制及环境效应（中国科学院“百人计划”，2010-2012，项目负责人） 学术论文 1. Li F. et al. Denitrifying bacteria and hydrogeo chemistry in a natural wetland adjacent to farmlands, Chiba in Japan. Hydrological Processes, in press. 2. Li F., Pan Guoying, Tang, Changyuan et al., 2008. Recharge source and hydrogeochemical evolution of shallow groundwater in a complex alluvial fan system, southwest of North China Plain. Environmental Geology, 55(5): 1109-1122. DOI 10.1007/s00254-007- 1059-1. 3. Li F., Song Xianfang, Tang Changyuan et al., 2007. Tracing infiltration and recharge using stable isotope in Taihang Mt. , North China. Environmental Geology, 53:687?696. DOI 10.1007/s00254-007-0683-0 4. Li Fadong, Tang Changyuan, Yang Yonghui et al., 2008. Nitrate contamination of ground water in the alluvial fans of the Taihang Mts. and Yanshan Mts. In: GQ07: Securing Groundwater Quality in Urban and Industrial Environments. IAHS Publ. 324: 79-85. 5. Li Fadong, Tang Changyuan, Zhang Qiuying et al., 2008. Surface water-groundwater interactions in a Yellow River alluvial fan. Surface Water?Groundwater Interactions: Process Understanding, Conceptualization and Modeling. IAHS Publ. 321:189-196. 6. Li, F., Song, X., Tang , C., Kondoh, A. and Zhang, W., 2008. Stable isotopic characterization of precipitation, soil water and groundwater in Taihang Mountain, north China, IAHS-AISH Publication319, pp. 83-90. 7. Li Fadong, Zhang Qiuying, Gao Kechang, Xu Zhongqi, Song Xianfang, 2005. Measurement of evapotranspiration of mixed bush and grass in headwater region of North China Plain. Geoscience and Remote Sensing Symposium, 2005. IEEE International. Volume: 2,1322- 1325. 8. Yi- Zhang Zhang, Chang-Yuan Tang, Xian-Fang Song, Fa-Dong Li, Jun Xia. in press. Behavior and fate of alkylphenols in surface water of the Jialu River, Henan Province, China. Chemsphere. 9. YU Jingjie, YANG Cong, LIU Changming, SONG Xianfang, HU Shanshan, LI Fadong, TANG Changyuan, 2009. Slope runoff study in situ using rainfall simulator in mountainous area of North China. J. Geogr. Sci. 19: 461-470. 10. Lu Y., Tang C., Chen J., Song X., Li Fadong and Sakura , Y., 2008. Spatial characteristics of water quality, stable isotopes and tritium associated with groundwater flow in the Hutuo River alluvial fan plain of the North China Plain. Hydrogeology Journal, 16(5): 1003-1015. 11. Yang Yonghui, Watanabe Masataka, Li Fadong, et al. 2006. Factors affecting forest growth and possible effects of climate change in the Taihang Mountains, Northern China. Forestry, 79(1):7135-147. 12. Zhang , Q., Li, F., Tang, C., Yang, Y. and Zhang, W., 2009. Effects of maize straw and gravel mulches on soil water content, Taihang Mountains, northern China. In: D. Marks (Editor), IAHS-AISH Publication 326. Hydrology in Mountain Regions: Observations, Processes and Dynamics, pp. 41-46. 13. Zhang, Q., Li F. et al. 2008. Physical and chemical soil properties in debris-flow bottomland plots Debris-flow hazards mitigation: Mechanics, Prediction, and Assessment 735-743. 14. Zhang Q., Li F., et al. 2006. Effect of land use on soil properties in debris flow bottomland. Wuhan University Journal of Natural Sciences, 11(4):870-874. 15. Zhang Qiuying, Li F., Ou Guo qiang, Song Xianfang, Yang Cong, 2005. Effects of land use on soil physical and chemical characters at debris flow bottomland. Geoscience and Remote Sensing Symposium, 2005. IEEE International. Volume: 6, 4469- 4472. 16. Yang Cong, Shi Runhe, Li F., 2005. Effect of Spectral Resolution on Foliage Biochemical Inversion. Geoscience and Remote Sensing Symposium, IEEE International. Volume: 4, 3006- 3008.