Advantages and disadvantages of Shanxi Reservoir

Let's talk about shortcomings first. Rivers and lakes are endowed by nature, and there are natural laws from trickle to rushing into the sea. Since it has been flowing for thousands of years, why not keep flowing according to its wishes? The Sanmenxia project on the Yellow River was originally built with water conservancy in mind, but it did not take into account the serious siltation caused by sediment today. Tens of millions of dollars are spent on dredging every year. Let's talk about our Three Gorges Project. The Three Gorges Dam, the world's largest dam, has been put into operation to generate electricity. Because of the huge engineering quantity, it has brought serious influence to the microclimate in the surrounding areas. In the summer of 2006, parts of Chongqing and Sichuan experienced a drought that never happened in a hundred years. For the sake of the Three Gorges, many ancient cultural sites along the Yangtze River were flooded, and millions of residents were forced to emigrate, which required hundreds of millions of funds. The dam impounded the upstream water, which led to the decrease of water flow, velocity and water level in the basin below the dam. Many large-tonnage ships ran aground, and the navigation capacity of the Yangtze River was greatly reduced. Therefore, building dams to build water conservancy projects is no longer talked about as before. The disadvantages it brings are increasingly apparent, and we can't help asking: Is this a blessing or a curse?

Compared with the disadvantages, the advantages of water conservancy projects are obvious. First of all, adjust the time allocation of water resources, store water in rainy season and release water in dry season, so that people in the reservoir area will no longer worry about water shortage. The surrounding fields can be irrigated and cultivated in reservoirs to increase farmers' income. Third, hydropower generation. Compared with thermal power, hydropower is clean and pollution-free, and water is a renewable resource that can be reused. Hydropower in southern China is dominant. China's sustained high economic growth for 30 consecutive years has increased the demand for electricity, and projects such as Gezhouba and Three Gorges have provided a strong guarantee for economic development. Power transmission from west to east is one of the major projects in the new century. It is impossible to fill the power gap in the moving part without hydropower. From this point of view, it is essential to build dams and water conservancy projects to generate electricity.

Hydroelectric power generation is necessary and advocated at present and for a long time to come, but new facilities should be strictly restricted, and the damage to the environment should be minimized while using resources, and water resources should be developed and utilized from the perspective of sustainable development. According to local conditions, we should strengthen the development of new energy sources in areas with suitable conditions, such as geothermal energy, wind energy, bioenergy and solar energy.

2 1 century, the competition among countries in the world has intensified, and there is no contradiction between resource development and environmental protection brought about by economic development. As long as we use the vision of sustainable development to guide our work, we will certainly achieve a win-win situation!