Fresh Water Scarcity in China

Water plays an important role in our life. All living things need water to survive. 70% of the earth's surface is water. Most of the water is salt water and rarely used in our daily life. Less than 2% of the earth's water is fresh water available for humans (Western Peninsula Science, Mathematics and Environmental Education, and Sustainable Futures Laboratory). Therefore, freshwater resources are very limited. In addition, these water resources are not allocated equally to various regions.

The purpose of this research was to identify shortages of freshwater resources in Egypt and analyze information on the lack of freshwater resources. Freshwater is important for Egypt because it is in a desertified area and a long dry area. About 98% of the population live in the wealthiest place and they need a lot of fresh water to maintain their lives. China is also a country where water resources are serious. In China, freshwater resources are the fourth largest in the world. However, China has a large population, per capita water resource is only a quarter of the world average. I think that water chemistry that may affect water shortage is industrial water. Almost all the aquatic ecosystems in China are very good, the environment is clean. The Chinese are improving the aquatic ecosystem now. In my opinion, the reason for the shortage of water in Egypt is that the annual rainfall is small and the local population is large.

Agriculture currently uses 70% of the annual fresh water intake and over 90% of the consumption. Water shortage is a problem for agriculture in regions where water resources are currently tight, such as China and India, where population growth and population increase are expected to increase, and by the year 2050 nearly half of the world's population is water shortage It is expected to face. . Furthermore, there is an increasing scientific evidence that climate change will be a major challenge for future food security, such as changing temperature patterns and weather patterns, increasing pest pressure and increasing plant diseases

Water shortages have a number of environmental harms, including lakes, rivers, wetlands and other freshwater resources. The resulting excessive use of water resources is often associated with water shortages in irrigated agricultural areas and endangers the environment in a variety of ways, including increased salt, nutritional pollution, floodplains and wetlands. In addition, water shortage is concerned with traffic management in the recovery of urban urban areas. Over the past 100 years more than half of the earth's wetlands have been destroyed and disappeared. These wetlands are not only habitat for many residents such as mammals, birds, fish, amphibians, invertebrates, but also help cultivate rice and other edible crops, water filtration and prevention of storms I will. And the flood. It is also damaged by freshwater lakes such as the Aral Sea in Central Asia.