1. The increase in world population
.When the world's population increases. The demand for both water consumption and water use in the agricultural, manufacturing and service industries to meet the needs of the four factors.Two. Demand better living
.In the process of economic development to enhance the well-being of human resources requires more water. In the production of goods and services. Needs to be expanded according to the level of development, such as the use of water in a large hotel.Car wash supplies and services will be more in cultivation compared to the social benefits that have been
.Three. Pollution as a result of industrial development and modern agriculture: the drug use, fertilizer and pesticides, acid rain is a serious pollution to the ecosystem
4. Resource management, water quality
.Irrigation systems such as inappropriate Water use by the lack of awareness of responsibility. I do not see the value of water. And regardless of the water shortage problem. Potential for future generations. The government had no way to allocate water appropriately.