Research on Water Environment Value of Tumen River Basin in the Way of E-Mergy;

The Survey and Research of Phase Analysis to Subaqueous Sediment Middle Reaches of Tumen River;

The Water Birds and Their Ecology Distribution along the Lower Reaches of Tumen River;

The Characteristics of the Fragmental Texture and Clastic Constituents of the Sand Dune by the Vicinity of Tumenjiang River;

Law Conflicts and Cooperation in Tumen River Area;

Spatial pattern changes and protection of wetlands in the Tumen River Basin;

Discuss of the rainstorm flood characteristic and reservoir function in 2000 of Tumen River basin;

Periods and tendency of temperature in Tumen river basin;

The low-frequency oscillation of the Tumen River basin air temperature over the past 50(1953-2002) years was studied with SSA and Mann-Kendall methods.

Correlation between delayed cool injury in the lower reaches of Tumen River and El Nino(La Nina);

Study on low-frequency oscillation characteristics for temperature and precipitation in the lower reaches of Tumen River;

Characteristics and change of landscape in lower reaches of Tumen River;