Debjani Sihi

Debjani Sihi

POSTDOCTORAL RESEARCH ASSOCIATE

Bio

Debjani Sihi is a Post-Doctoral Research Associate at the Environmental Sciences Division and the Climate Change Science Institute. She is interested in evaluating the dynamics of soil organic matter decomposition and greenhouse gas emission along aerobic to anaerobic gradients in systems ranging from the tropics and subtropics (El Yunque National Forest in Puerto Rico, Florida Everglades) to temperate and boreal transition forests (Howland Forest and Harvard Forest in NE USA). 

Her current research at ORNL aims to develop a genome-informed geochemical model framework for predicting greenhouse emission from tropical soils and wetlands under the supervision of Dr. Melanie Mayes. Her previous work focused on improving understanding of and modeling capacity for interactions of belowground temperature, moisture, and substrate supply that controls the net soil emissions of greenhouse gases using a model-data fusion approach under the supervision of Dr. Eric Davidson. Before that, she was a graduate research assistant in Wetland Biogeochemistry Laboratory at the University of Florida (Supervisor: Dr. Patrick W. Inglett) where she used empirical methods and numerical modeling to understand complex interactions of temperature, substrate quality, and nutrient availability on greenhouse gas production under anaerobic condition.  

Awards

Gene E. Likens Award, 2018, ESA (Ecological Society of America) Biogeosciences

Excellence in Graduate Studies (Ph.D. Level), 2015, Soil and Water Science Department, University of Florida.

Top Reviewers for Multidisciplinary, 2017, Publons Peer Review Award (Publons profile)

Publications

  • Sihi, D., Inglett, P. W., and Inglett, K. S., Warming rate drives microbial nutrient demand and enzyme expression during peat decomposition. Geoderma, 336, 12-21, 2019, DOI: https://doi.org/10.1016/j.geoderma.2018.08.027  
  • Sihi, D., Davidson, E. A., Min Chen, Savage, K., Richardson, A. D., Keenan, T. F., and Hollinger, D.Y.  Merging a Mechanistic Enzymatic Model of Temperature, Moisture, and Substrate Supply Effects on Soil Respiration into an Ecosystem Model in Two AmeriFlux sites of Northeastern USA. Agricultural and Forest Meteorology, 252, 155-166, 2018, DOI: https://doi.org/10.1016/j.agrformet.2018.01.026 (‘Celebrating the 20th anniversary of the AmeriFlux network' Special Issue). (Featured in SCIENCE TRENDS: https://sciencetrends.com/soil-heterotrophic-respiration-and-the-earth-system-model/)
  • Yan Z., Chen S., Dari B, Sihi, D., Chen Q. Phosphorus transformation response to soil properties changes induced by manure application in a calcareous soil. Geoderma, 322, 163-171, 2018, DOI: https://doi.org/10.1016/j.geoderma.2018.02.035.
  • Sihi, D., Inglett, P. W., Gerber, S., and Inglett K. S. Rate of warming affects temperature sensitivity of anaerobic peat decomposition and greenhouse gas production. Global Change Biology, 24:e259–e274, 2017, DOI:10.1111/gcb.13839 (Featured in Nature Climate Change Research Highlight, available as Biogeochemistry: Peat decomposition. Nature Climate Change 7, 686-686, 2017, DOI: 10.1038/nclimate3406).  
  • Sihi, D., Dari, B., Sharma, D. K., Pathak, H., Nain, L., and Sharma, O. P. Evaluation of soil health in organic vs. conventional farming of basmati rice in North India. Journal of plant nutrition and soil science, 180, 389-406, 2017, DOI: 10.1002/jpln.201700128 (Featured for a research-based story on Research Matters, Science Media Centre, Gubbi Labs, Indian Institute of Science, Bangalore, India: https://researchmatters.in/article/soil-health-improves-organic-farming-long-and-short-terms-shows-study).
  • Sihi, D., Gerber, S., Inglett, P. W., and Inglett K. S. Comparing models of microbial-substrate interactions and their response to warming. Biogeosciences, 13, 1-20, 2016, DOI:10.5194/bg-13-1-2016 (Recognized in UF/IFAS High Impact Research Publications). 
  • Sihi, D., Inglett, P. W., and Inglett K. S. Carbon quality and nutrient status drive the temperature sensitivity of organic matter decomposition in subtropical peat soils. Biogeochemistry, 131, 103-119, 2016, DOI: 10.1007/s10533-016-0267-8.
  • Dari B, Sihi, D., S K Bal. Performance of Direct Seeded Rice under Various Dates of Sowing and Irrigation Regimes in Semiarid India, Paddy and Water Environment, 2016, DOI: 10.1007/s10333-016-0557-8
  • Sihi, D., Sharma, D. K., Pathak, H., Singh, Y. V., Sharma, O. P., Nain, L., Chaudhary, A. and Dari, B.  Sihi, D., Sharma, D. K., Pathak, H., Singh, Y. V., Sharma, O. P., Nain, L., Chaudhary, A. and Dari, B. Effect of organic farming on productivity and quality of basmati rice. Oryza-An International Journal of Rice, 2012, 49(1), 24-29. Oryza-An International Journal of Rice, 2012, 49(1), 24-29.  

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