weizhiwater / significant-stream-chemistry-response-to-temperature-variations-in-a-mountain-watershed

High-elevation mountain regions, central to global freshwater supply, are experiencing more rapid warming than low-elevation locations. High-elevation streams are therefore potentially critical indicators for earth system and water chemistry response to warming. Here we present concerted hydroclimatic and biogeochemical data from Coal Creek, Colorado in the central Rocky Mountains at elevations of 2700 to 3700 m, where air temperatures have increased by about 2 °C since 1980. We analyzed water chemistry every other day from 2016 to 2019. Water chemistry data indicate distinct responses of different solutes to inter-annual hydroclimatic variations.

Wei Zhi

I am an assistant research professor in the Department of Civil & Environmental Engineering at Penn State University, University Park. My research interests focus on Critical Zone Science and Watershed Hydro-biogeochemistry. More specifically, I am interested in understanding how water moves and interacts with other components in natural environments. Ultimately, I aim to understand and forecast water quantity and quality at the watershed- and continental-scale, using both the process-based reactive transport model and the data-driven machine (deep) learning model.

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Research

Continential-scale water quality modelling & analysis

• 2021, From Hydrometeorology to River Water Quality: Can a Deep Learning Model Predict Dissolved Oxygen at the Continental Scale?
  • doi: 10.1021/acs.est.0c06783 | |
• 2020, The Shallow and Deep Hypothesis: Subsurface Vertical Chemical Contrasts Shape Nitrate Export Patterns from Different Land Uses
  • doi: 10.1021/acs.est.0c01340 |

Watershed-scale hydro-biogeochemicy & reactive transport modelling

• 2021 under review, BioRT-Flux-PIHM v1. 0: a Watershed Biogeochemical Reactive Transport Model
  • doi: 10.5194/gmd-2020-157 |
• 2020, Significant Stream Chemistry Response to Temperature Variations in a High-elevation Mountain Watershed
  • doi: 10.1038/s43247-020-00039-w |
• 2019, Distinct Source Water Chemistry Shapes Contrasting Concentration‐Discharge Patterns
  • doi: 10.1029/2018WR024257 |

Wetland biogeochemistry, nitrogen transformation, and microbial community analysis

• 2015, Enhanced Long-term Nitrogen Removal and Its Quantitative Molecular Mechanism in Tidal Flow Constructed Wetlands
  • doi: 10.1021/acs.est.5b00017 |
• 2014, Quantitative Response Relationships Between Nitrogen Transformation Rates and Nitrogen Functional Genes in a Tidal Flow Constructed Wetland under C/N Ratio Constraints
  • doi: 10.1016/j.watres.2014.06.035 |
• 2014, Methods for understanding microbial community structures and functions in microbial fuel cells: A review
  • doi: 10.1016/j.biortech.2014.08.096
• 2012, Constructed wetlands, 1991–2011: A review of research development, current trends, and future directions
  • doi: 10.1016/j.scitotenv.2012.09.064