Certainly not.
Hydroelectric power blocks fish migration routes and hinders spawning (like Chinese sturgeon). Rising waters have destroyed the upstream landscape, submerged some towns and destroyed the ecological environment. Rising water levels alter local crustal pressure, which can trigger geological disasters.
Wind power affects the migration of migratory birds
Environmental impacts caused by hydroelectric generation
1 Natural aspects: huge reservoirs can even cause surface activities. cause earthquakes. In addition, it can also cause hydrological changes in the basin, such as lower water levels downstream or reduced sediment upstream, due to significant evaporation the climate is cooler and more stable and precipitation decreases. .
2. Biological aspects: For terrestrial animalss, after the construction of the reservoir, a large number of wild animals and plants may drown and die, or even disappear. For aquatic animals, once the tank is built. constructed, due to the upstream ecological environment,
Changes will affect the fish, leading to extinction or reduction of the population. At the same time, due to the expansion of the upstream water area, the habitats of some organisms (such as). like snails) will increase, leading to certain regional conditions. The spread of diseases (such as schistosomiasis
) has created conditions.
3. Physical and chemical properties: The water flowing in and out of the tank, physical and chemical properties such as color and odor, as well as the density, temperature and even solubility of the water in each layer of the tank are different. The temperature of the water in the depths is low and the matterre organic. the material deposited at the bottom of the reservoir cannot be completely oxidized and undergoes anaerobic decomposition, and the carbon dioxide content of the water body increases significantly.
Advantages and disadvantages of energy production Solar photovoltaic compared with commonly used thermal power generation systems, the advantages of solar photovoltaic power generation are mainly reflected in: ①No risk of depletion; ②Safe and reliable, no noise, no polluting emissions, absolutely clean (no pollution) ③ It is not limited by the geographical distribution of resources and; can take advantage of the roof of the building; ④ It can generate electricity and provide electricity on site without consuming fuel or erecting transmission lines; ⑤ High energy quality ⑥ It is easy for users to accept it emotionally; the time required to obtain energy isshort. Disadvantages: ① The energy distribution density of irradiation is low, that is, it occupies a huge area; ② The energy obtained is related to the four seasons, day and night, cloudy and sunny and other weather conditions; The origin and development of photovoltaic solar energy production