In this paper the method of real-time adjustment of flood forecast for large river systems is developed based on the analysis of real-time flood forecast and real-time adjustment.

Calculation of ecological water requirement of river system in hilly area of south China;

Analysis on energy distribution dissipation relation on river system;

Based on the existing concept of river health,a new definition of river health on river system was put forward.

Scale impact on modelling drainage system in arid region based on DEM——A case study of Qaidam Basin, China;

This paper introduces the research progress in their palaeoclimatic effects, detection of organic matter in estuary systems, degradation and contamination tracing.