, can be analyzed by the "Anti-adsorption physically coated mercury filmelectrode without reagent" ASV method to separate the no tokicity species in"Dissolved-Cu, Zn" for comparison with "Homogeneously distributed Cu2+ andZn2+ in the natural water cycle" as natural ion baseline to show the contamination de-gree and to contro1 its source.
Water resources system is combined with natural hydrological cycle and man-made water process. The interdependent relationship between these two cycles of water movement is analyzed. Based on the analysis,taking into consideration of major aspects related to water resources,the complex system can be classified as five sub-systems: natural water resources,development and use,ecosystem of water,water environment and social-economical system.
Manas River basin with intensive and efficient exploitation of water resources by human being has transformed the course of water circle and unity of ecologic service from the circle course and circle peculiarity in arid region.
The role of the phase transition and interphase transfer of water in its circulation are considered and accounted for in the proposed unified scheme of the natural water cycle.
Replacement of these ecosystems with conventional agriculture has resulted in large-scale disruption of the natural water cycle with severe environmental, economic and social consequences.