For rational and efficient development and utilization of Yellow River water resources, analyzes the major problems of current irrigation patterns of Yellow River irrigation district, increasingly severe unbalance between water supply and demands.

As the demands on the yellow river s water increasing, Supply–Demandproblem of water resources of the Yellow River become outstanding increasingly anda shortage of water is more serious.

Effects of neotectonic movement in the source area of the Yellow River, China on eco-environmental deterioration.;

Discovery of early Pleistocene strata containing plants fossils in the source area of the Yellow River and significance;

The Hajiang saline pool in the source area of the Yellow River is located in Madoi County,Qinghai Province,at 36.

Character analysis of ions in the source region of the Yellow River;

Variations of soil temperature and water moisture of seasonal frozen soil with different vegetation coverages in the source region of the Yellow River,China;

Eco-environmental degradation in the source region of the Yellow River is a very serious ecological and socially economic problem.

The reason for degeneration of the eco-environment advance trend in the headwater area of the Yellow river;

Changes in water environment and their ecologicgeologic environmental effects in the headwater area of the Yellow River;

Since the 1990 s the aridity of the headwater area of the Yellow River has shown as increasing trend owing to the global change in the climate.