Water shortage in western China

1. The twelve provinces, autonomous regions and municipalities in western China are very rich in water resources and hydro energy resources. The total water resources are more than 1.5 trillion m3, accounting for 55.65% of the national total. Water energy can be developed The installed resource capacity reaches 340 million kW, accounting for 90% of the national total. However, the spatial and temporal distribution is extremely uneven, with more in the south and less in the north, and there are obvious differences between the northwest and southwest.

2. The northwest region has a dry climate with little rainfall, and evaporation is four to eleven times that of precipitation. The northwest region accounts for 57% of the total area of ??the western region, with a total water resource of 225.4 billion cubic meters. The amount of energy accounts for only 18%, and water energy resources only account for 24.4%.

3. The northwest region is one of the regions with the most severe drought and water shortage in the world; the southwest region has a humid climate, abundant rainfall, and abundant water and hydropower resources, but it is very difficult to develop them.

4. The western region is the source of China’s major rivers. Soil erosion, desertification, ecological environment, river water quality, and the rational development and utilization of water resources and hydropower resources in the western region are not only related to the western region, but also directly affect Sustainable economic and social development in the eastern and central regions and even the whole country. Solving the water resources problem in the western region is related to the development process of the western region.

5. In addition, weak water conservancy infrastructure is also a major factor restricting the development of the western region. To speed up the development of the western region, it is necessary to speed up the construction of water conservancy and other infrastructure and combine the rational development and effective use of water resources. Take advantage of prominent positions.

6. The implementation of the Western Development Strategy by the Party Central Committee has brought new opportunities and challenges to the development of water conservancy in the Western Region. To do a good job in the development and utilization of water resources in the western region, we must find the right position, seize the opportunity, and speed up the pace of water conservancy development in the western region without losing any opportunity

Extended information:

Measures to save water :

1. Wash vegetables with rice-washing water first, and then wash them with clean water. This not only saves water, but also can effectively remove residual pesticides on vegetables. When watering flowers at home, it is advisable to use rice-washing water, tea, or laundry water. Water, etc.; adjust the float ball of the water tank in the bathroom downward by 2 cm, and each flush can save nearly 3 liters of water. If a family uses it 4 times a day, 4380 liters of water can be saved in a year; if the faucet leaks after being used for a long time, Use the rubber cap of the small vial of penicillin to cut a gasket that is the same as the original and put it in to ensure that there is no leakage.

2. If the water tank of the toilet is too large, you can replace it with a two-stop water tank accessory. When the water tank of the toilet leaks, the water inlet valve will fail and the water will flow away from the overflow port continuously. If the drain valve fails, water will flow from the toilet, and the water inlet pipe will continue to supply water to the water tank; use cleaner discarded water from the household to flush the toilet, so that water can be used for multiple purposes; garbage, regardless of size or thickness, should be removed from the garbage channel. Do not flush it with water through the toilet.

3. Tips for solving toilet leakage: The main reason for water tank leakage is that the copper wire used to connect the handle to the leather bowl is often stuck, preventing the leather bowl from falling. If the leather bowl cannot be removed, it cannot be completely blocked. water pipes, causing water leakage. You can twist a plastic belt into a plastic string, pass the plastic string through the iron ring on the leather bowl, and connect it to the handle rocker. The plastic rope is strong and not afraid of blisters, so it needs to be replaced every six months. Users with leaky water tanks may wish to give it a try.

4. You can wash your feet after using face wash water, and then flush the toilet; you should prepare a large bucket for collecting waste water at home, which can fully guarantee the amount of water needed for flushing the toilet; water for washing rice and cooking noodles, Used to wash dishes and chopsticks, remove oil and save water; use water from fish farming to water flowers, which can promote the growth of flowers and trees. Although wastewater utilization is easier said than done, the water saving effect is obvious. According to estimates, a family of three can save about 1 ton of water per month by collecting domestic wastewater such as laundry, bathing, and washing and using it for flushing toilets and mopping the floor.

5. When washing your hands, face, and brushing your teeth, do not leave the faucet open all the time, but drain the water intermittently. For example: when washing your hands and face, you should turn off the faucet when applying soap; when brushing your teeth, you should fill the cup with water and then turn off the faucet.

6. Reduce the number of baths. Each time you take a bath, control the amount of water drained to about one-third of the water in the bathtub.

7. When bathing, stand in a collection container to collect used water for flushing the toilet or mopping the floor. Do not leave the nozzle on for a long time. Wet your body and hair first, then turn off the nozzle, use bath soap and shampoo, and wash it for the last time.

8. Bathing too frequently is not good for skin health. 2 to 4 times a month is most appropriate. Showering saves 80% more water than bathing in a bathtub. Shower with water intermittently, don't be afraid of trouble when scrubbing, and turn off the water flow in time; the water after bathing can be used for laundry, flushing the toilet, mopping the floor, etc. When using a nozzle to take a shower, be sure to adjust the ratio of hot and cold water; do not leave the nozzle on all the time, let alone open the water. Take a shower as soon as possible, turn off the nozzle when your head and feet are wet, scrub with soap or bath liquid, and rinse thoroughly at once; do not wash clothes "by the way" when taking a bath; do not fill the bathtub with bath water, 1/3-1/4 basin is enough .

Reference materials: Baidu Encyclopedia-China Water Resources