Li Guo

  • Research Associate
Li Guo
446 Agricultural Sciences & Industries Building
University Park, PA 16802

Areas of Expertise

  • Near-surface Geophysics, Hydropedology, Ecohydrology
  • Critical Zone Science, Ecology and Evolution
  • Remote Sensing of Environment and Climate Change



  1. Ph.D., Remote Sensing, Beijing Normal University, China, 2013
  2. M.S., Ecology, Fudan University, China, 2010
  3. B.S., Biology, Sichuan University, China, 2007


Research Areas and Relevant Publications

Imaging and Quantification of Plant Roots by Ground-Penetrating Radar (GPR)

  • Li W, Cui X, Guo L, Chen J, Chen X, Cao X (2016). Tree Root Automatic Recognition in Ground Penetrating Radar Profiles Based on Randomized Hough Transform, Remote Sensing, 8(430):1-16. doi: 10.3390/rs8050430
  • Guo L, Wu Y, Chen J, Hirano Y, Tanikawa T, Li W, Cui X (2015). Calibrate the impact of root orientation on root quantification using ground-penetrating radar. Plant and Soil, 395:289-305. doi: 10.1007/s11104-015-2563-9
  • Wu Y, Guo L, Cui X, Chen J, Cao X, Lin H (2014) Ground-penetrating radar-based automatic reconstruction of three dimensional coarse root system architecture. Plant and Soil, 383:155-172. doi: 10.1007/s11104-014-2139-0
  • Wu Y, Guo L, Li W, Cui X, Chen J (2014). Comment on: “root orientation can affect detection accuracy of ground-penetrating radar”. Plant and Soil, 380:441-444. doi: 10.1007/s11104-014-2124-7
  • Guo L, Lin H, Fan, Cui X, Chen J (2013). Forward Simulation of Root’s Ground Penetrating Radar Signal: Simulator Development and Validation, Plant and Soil, 372:487-505. doi: 10.1007/s11104-013-1751-8
  • Guo L, Lin H, Fan, Cui X, Chen J (2013). Impact of Root Water Content on Root Biomass Estimation Using Ground Penetrating Radar: Evidence from Forward Simulations and Field Controlled Experiments, Plant and Soil, 371:503-520. doi: 10.1007/s11104-013-1710-4
  • Guo L, Chen J, Cui X, Fan B, Lin H (2013). Application of Ground Penetrating Radar for Root Detection and Quantification: A Review, Plant and Soil, 362:1-23. doi: 10.1007/s11104-012-1455-5
  • Guo L, Cui X, Chen J (2012). Sensitive factors analysis in using GPR for detection plant roots based on forward modeling, Progress in Geophysics, 27:1754-1763. doi: 10.6038/j.issn.1004-2903.2012.04.057
  • Cui X, Guo L, Chen J, Chen X, Zhu X (2012). Estimating tree-root biomass in different depths by ground-penetrating radar: evidences from a controlled experiment, IEEE Transaction on Geoscience and Remote Sensing, 99:1-14. doi: 10.1109/TGRS.2012.2224351


Hydropedology and Critical Zone Science

  • Guo L, Lin H (2018). Addressing Two Bottlenecks to Advance the Understanding of Preferential Flow in Soils. Advances in Agronomy, 147:61-117. doi: 10.1016/bs.agron.2017.10.002
  • Nyquist J, Toran L, Pitman L, Guo L, Lin H (2018). Testing the Fill-and-Spill Model of Subsurface Flow Using GPR and Dye Tracing. Vadose Zone Journal, 16:1-12. doi: 10.2136/vzj2017.07.0142
  • Ma Y, Li X, Guo L, Lin H (2017). Hydropedology: Interactions between pedologic and hydrologic processes across spatiotemporal scales. Earth-Science Review, 171:181-195. doi: 10.1016/j.earscirev.2017.05.014
  • Guo L, Lin H (2016). Critical Zone Research and Observatories: Current Status and Future Perspectives. Vadose Zone Journal, 15:1-14. doi: 10.2136/vzj2016.06.0050
  • Wang M, Lu B, Wang J, Zhang H, Guo L, Lin H (2016). Using Dual Isotopes and a Bayesian Isotope Mixing Model to Evaluate Nitrate Sources of Surface Water in a Drinking Water Source Watershed, East China. Water, 8(355):1-16. doi: 10.3390/w8080355
  • Guo L, Chen J, Lin H (2014). Subsurface Lateral Flow Network on a Hillslope Revealed by Time-lapse Ground Penetrating Radar, Water Resource Research, 50: 1-21. doi: doi:10.1002/2013WR014603.


Climate Change and Remote Sensing of Vegetation

  • Yang Z, Shen M, Jia S, Guo L, Yang W, Wang C, Chen X, Chen J (2017). Journal of Geophysical Research: Atmospheres, 121:1-10. doi: 10.1002/2017JD027318
  • Guo L, Wang K, Bluestein H (2016). Variability of Tornado Occurrence over the Continental United States since 1950. Journal of Geophysical Research: Atmospheres, 121:6943–6953. doi: 10.1002/2015JD024465
  • Guo L, An N, Wang K (2016). Reconciling the discrepancy in ground- and satellite-observed trends in the spring phenology of winter wheat in China from 1993 to 2008. Journal of Geophysical Research: Atmospheres, 121:1027-1042. doi: 10.1002/2015JD023969
  • Jia P, Lu L, Chen X, Chen J, Guo L, Yu X, Liu Q (2016). A climate-driven mechanistic population model of Aedes albopictus with diapause. Parasite and Vectors, 9:1-15. doi: 10.1186/s13071-016-1448-y
  • Li N, Guo L, Fan B (2015). A New Perspective on Understanding the Reduced Spring Dust Storm Frequency in Inner Mongolia, China. International Journal of Disaster Risk Science, 6:216-225. doi: 10.1007/s13753-015-0062-5
  • Fan B, Guo L, Li N, Chen J, Lin H, Zhang X, Shen M, Rao Y, Wang C, Ma L (2014). Earlier vegetation green-up has reduced spring dust storms. Scientific Reports, 4(6749):1-6. doi: 10.1038/srep06749


Ecology and Evolution

  • Jin B, Xu W, Guo L, Chen J, Fu C (2014). The impact of geomorphology of marsh creeks on fish assemblage in Changjiang River estuary, Chinese Journal of Oceanology and Limnology, 32:469-479. doi: 10.1007/s00343-014-3002-0
  • Fu C, Guo L, Xia R, Li J, Lei G (2012). A multilocus phylogeny of Asian noodlefishes Salangidae (Teleostei: Osmeriformes) with a revised classification of the family, Molecular Phylogenetics and Evolution, 62:848-855. doi: 10.1016/j.ympev.2011.11.031
  • Guo L, Li J, Wang Z, Fu C (2011). Phylogenetic relationships of noodle-fishes (Osmeriformes: Salangidae) based on four mitochondrial genes, Acta Hydrobiological Sinica, 35:449-459. doi: 10.3724/SP.J.1035.2011.00449
  • Tang W, Ishimatsu A, Fu C, Yin W, Guo L, Chen H, Wu Q, Li B (2010). Cryptic Species and Historical Biogeography of Eel Gobies (Gobioidei: Odontamblyopus) Along the Northwestern Pacific Coast. Zoological Science, 27:8-13. doi: 10.2108/zsj.27.8
  • Chen Z, Guo L, Jin B, Wu J, Zheng G (2009). Effect of the exotic plant Spartina alterniflora on macrobenthos communities in salt marshes of the Yangtze River Estuary, China. Estuarine Coastal and Shelf Science, 82:265-272. doi: 10.1016/j.ecss.2009.01.014
  • Zhou S, Jin B, Guo L, Qin H, Chu T, Wu J (2009). Spatial distribution of zooplankton in the intertidal marsh creeks of the Yangtze River Estuary, China. Estuarine Coastal and Shelf Science, 85:399-406. doi: 10.1016/j.ecss.2009.09.002
  • Yin W, Fu C, Guo L, He Q, Li J, Jin B, Wu Q, Li B (2009). Species delimitation and historical biogeography in the genus Helice (Brachyura: Varunidae) in the northwestern Pacific. Zoological Science, 26:467-475. doi: 10.2108/zsj.26.467