With the application of Chaos and Nonlinearity technology in analyzing the water quality pollution in water conservancy establishment,the result of the experiment at GeZhou Dam ship lock indicates that the water difference within the affected 12kms is confined within 1.

The author also puts forward such measures as making clear-cut the government\'s prime responsibility,attracting investment from the public,improving construction planning,optimizing allocation of resources,unifying water resources management so as to ensure rural water conservancy facilities at their best utilization.

Taking small water conservancy facilities as an example,there are many problems with its marketization,such as insufficient preparation for operation,low economic and social benefits,unbalanced supply and demand in the market,and the difficulty to balance efficiency of water conservancy and Social Equity.