Based on the trend between human and river, the paper analyzed the space, structure, behaviors, functions, environment, characteristics, process and so on in the human and river system.

Prediction of river water quality using the united gray neural network model;

Study on simulation and prediction of river water quality based on unascertained information;

Relationships between river water quality and human activities in watershed;

Study on stable isotope in river water and precipitation in Naqu River basin, Tibetan Plateau;

Multithreading parallel computation of river network flow in Windows environment;