Faculty / Research Staff

Qian Zhang

Watershed Effectiveness Data Analyst
Research Staff
Qian Zhang
Watershed Effectiveness Data Analyst
Integration and Application Network


Dr. Qian Zhang is an assistant research scientist with UMCES at the USEPA Chesapeake Bay Program. His main role is to work with scientists, professionals, and managers in the Chesapeake Bay partnership to explore natural and anthropogenic-based causes behind the current status and long-term trends in the water quality of the streams and rivers in the Bay watershed. This collaborative effort is critical to defining the success of Chesapeake Bay and watershed restoration efforts to date and to making science-based management decisions in the foreseeable future.

Zhang is interested in applying scientific principles and statistical approaches to quantify nutrient and sediment export from watersheds. Specific areas include but are not limited to (1) evaluation of water-quality trends and uncertainties; (2) improvement of statistical methods for riverine flux and trend estimation; (3) analysis of patterns of watershed constituent export and controlling factors.

Zhang obtained his Ph.D degree from the Department of Geography and Environmental Engineering at Johns Hopkins University. Under the advisement of Prof. Bill Ball, Zhang's doctoral dissertation focused on nutrient and sediment export from major tributaries to the Chesapeake Bay. Zhang holds two Master of Science degrees from Johns Hopkins University, one in environmental engineering and the other in statistics. He obtained his bachelor's degree in environmental engineering at the Nanyang Technological University in Singapore in 2009. 

Areas of Expertise

  • Environmental Science
  • Water Quality
  • Watershed
  • Nutrients
  • Statistics
  • Machine Learning
  • Trend Analysis
  • Chesapeake Bay


  • Johns Hopkins University, 2016, Ph.D., Environmental Engineering
  • Johns Hopkins University, 2014, M.S.E., Statistics
  • Johns Hopkins University, 2011, M.S.E., Environmental Engineering
  • Nanyang Technological University, 2009, B.E., Environmental Engineering

Recent Publications