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3 Cards in this Set
- Front
- Back
- 3rd side (hint)
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1. Water Resources |
Water resources is such a kind of water that is available or may be exploitable; it should have enough quantity and available quality, to meet sort of purposes to be able to used at a certain place. |
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Functions of Water Resources |
1。To supply sufficient quality by social demands; 2。Reliable sources, renewed or supplemented by hydrological cycle; 3。Quantity can be artificially controlled; 4。Quantity & quality to meet the requirements of human water use. |
S R Q Q |
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Basic Characteristics of WR |
1. Cyclinity and finitenes- have ground and surface water recovered and renewed
2. Uneven Spatial and temporal distribution- uneven distribution between time and Region.
3. Extension use: Irrigation, industrial production, urban and rural domestics, ecological environment, hydroelectric generation, navigation, fishery, recreation
4. Economic duality: Water is beneficial → see【Extensive use】Water can also harm：flood if too much，drought if too little；inappropriate use also harms: dam break, soil secondary salinization, water pollution, saltwater intrusion, land subsidence；concurrent of advantage & disadvantage；The comprehensive development and rational utilization of WR，is to maximize the Advantage，and minimize the disadvantage |
C U E E |
