Abstract: With the development of economy,water resources security becomes an important issue in the sustainable utilization of water resources,and further,the sustainable development of national economy.Taking Guizhou Province as an example and based on the analysis of regional water resources situation and exploitation,this paper discussed the water shortage in projects,waste of water resources,and drawbacks in related policy-making,from the viewpoints of water quantity security,water quality security,and water ecological security.

Key words: Chemical binding form, Sequential extraction method, Transference and enrichment