Freshwater resources are an important part of the earth's water resources, including rivers, lakes, glaciers and groundwater. The water on the earth is unevenly distributed, and most of it is salt water from oceans, salt lakes and salt rivers, while fresh water resources only account for about 2% of the total water on the earth.
The importance of fresh water resources cannot be ignored. It is one of the important resources for human survival and development. It is not only used for drinking, bathing, agricultural irrigation and other life and production activities, but also plays an important role in maintaining ecological balance and biodiversity.
However, due to global climate change, human activities and natural factors, the quantity and quality of freshwater resources have been affected and polluted to varying degrees, making the protection and utilization of freshwater resources a global issue.
In China, fresh water resources are also facing a severe situation. Although the total amount of fresh water resources in China is not small, the per capita water resources are not rich. Affected by factors such as large population, accelerated economic development and urbanization, the contradiction between supply and demand of fresh water resources has become increasingly prominent. At the same time, problems such as water pollution and waste of water resources often appear, which need effective governance and management.
Measures for the protection and utilization of fresh water resources:
1, the government should strengthen the supervision and management of water resources, formulate scientific and reasonable plans for water resources protection and utilization, and ensure the sustainable utilization of water resources. At the same time, it is necessary to establish and improve water resources management systems and regulations, strengthen law enforcement, and severely crack down on and punish acts that destroy water resources.
2. Popularizing water-saving technologies and measures can improve the utilization efficiency of water resources and reduce waste and loss. For example, measures such as popularizing water-saving sanitary ware, installing water meters and strengthening water management can effectively reduce the waste of domestic water. In addition, using drip irrigation, sprinkler irrigation and other water-saving irrigation methods can greatly reduce the waste of agricultural water.
3. Water pollution is one of the important factors affecting the quality of fresh water resources, so it is necessary to strengthen water pollution control and environmental protection. The government should strengthen the supervision and management of wastewater discharge from industrial enterprises and strictly control the wastewater discharge standards. At the same time, it is necessary to strengthen the management and protection of rivers and lakes and other water bodies and improve the environmental quality of water bodies.
4. By promoting the recycling of water resources, the demand for fresh water resources can be reduced, and the impact of wastewater discharge on the environment can also be reduced. For example, after treatment, industrial wastewater can be used for agricultural irrigation, urban greening and other purposes to realize the resource utilization of wastewater.