-
We need to make full use of the ocean's resources to expand the value of marine life, and at the same time, we must be prepared to prevent the adverse aspects brought to us by typhoons.
-
Rational use of marine resources in the ocean, regular protection of marine resources, followed by drawbacks, to strengthen protection, strengthen the protection of the ocean.
-
In fact, we can't say how much benefit the ocean has brought us, we should reflect on what harm human beings have done to the ocean, and we should not blindly ask for it, but also protect the ocean.
-
In general, we should take good care of the environment so that the ocean can give back to us.
-
1. Formulate a marine environmental protection strategy to provide a better habitat environment for marine species.
2. Establish and improve the legal system and system for the marine environment, and strictly implement it.
3. Formulate a management model for the prevention and control of marine pollution suitable for the country according to national conditions.
4. Law enforcement of the protection of the marine environment shall carry out comprehensive protection of the marine environment.
5. Establish a model for a complete set of marine environmental data and information products and services using remote sensing and space technology.
-
In the face of the pros and cons brought by the ocean, we should consider these things comprehensively, the ocean has given us endless wealth and the environment we live in, and it has also brought us a lot of force majeure natural disasters.
-
On Earth, the ocean occupies 71% of the area, and the importance of the ocean to mankind:
1.Modern scientific research has shown that the earliest life originated in the ocean, and it can be said that the ocean is the cradle of human life.
2.The ocean is rich in water resources, which are responsible for the operation of the global water circulation system, and affect and even determine global climate change.
3.The oceans are rich in biological resources, providing specimens for biological science research in terms of the diversity of global biological resources.
4.The ocean is rich in economic fish and algae resources, which provide food, oil, chemical materials, and so on for human beings.
5.The seabed is rich in mineral resources, the proportion of deep-sea manganese nodules is an almost endless treasure, and the seabed is also rich in oil, natural gas, and combustible ice reserves.
6.The ocean's own tidal changes contain an almost infinite amount of energy to generate electricity.
7.Ocean transportation is currently one of the most efficient modes of transportation, and port cities close to the ocean can generally develop rapidly.
8.The ocean is also the ultimate purification plant for pollutants around the world.
9.The ocean is at risk. Large tsunamis and typhoons often cause great disasters to mankind.
10.Projected sea level rise due to climate change will inundate many low-lying coastal cities, with incalculable potential human losses.
According to the causes of the formation of ocean currents, they can be divided into three categories:
1.Wind-ocean currents-atmospheric movements and near-surface wind belts are the main driving forces for the movement of ocean water bodies. The prevailing wind blows the sea surface, pushing the ocean water to drift with the wind, and causing the upper sea water to drive the lower sea water, forming a large-scale ocean current, which is called the wind current.
2.Density flow - The density flow of seawater is called density flow due to the difference in the temperature and salinity of seawater in each sea. For example, the Strait of Gibraltar, which connects the Mediterranean Sea and the Atlantic Ocean, has a Mediterranean climate, with hot and dry summers and mild and humid winters, with high evaporation in the Mediterranean Sea and high salinity in the Mediterranean Sea, while the Sea in the Atlantic Ocean has a high density and a lower water surface.
3.Compensating flow - the continuity of seawater, compensating for the loss of ocean currents formed by the difference in wind and density, so that the seawater outflow of seawater in the sea area is reduced, due to the requirement of seawater continuity, compensating for the loss, the seawater in the adjacent sea area will flow to replenish, and the ocean current formed in this way is called compensating flow. The compensation flow formation is closely related to the wind-sea current, and the density flow.
The divisible vertical compensation flow occurs mainly in coastal areas, near the coast, where the sea water is moved by wind and is affected by offshore or onshore winds.
-
The sea is the mother of the earth, and there is no earth if there is an ocean! The ecological circulation system depends on the ocean. If there is no water, there is no life, all life begins in the ocean, and the ocean can also regulate the earth's climate. The ocean is also rich in resources.
-
1. The problem of sea temperature, like El NiƱo.
The effects of the larina phenomenon and the cold and warm currents on marine life and terrestrial climate.
2. The salinity of seawater, for example, the evaporation of seawater in some areas is large, and the salinity of seawater is high, while the precipitation in some areas is high, and the surface runoff is injected into fresh water, which makes the salinity low.
3. Seawater pollution, such as oil pollution and seawater eutrophication.
4. Marine problems caused by human activities, such as the above-mentioned seawater pollution, and the greenhouse gases released by burning organic fuels.
make global warming.
Causing glaciers to melt and invert sea levels to rise.
Endangering coastal lowland cities, predatory exploitation of marine resources has polluted the oceans, and overfishing has led to the decline or even extinction of marine life.
5. Political maritime disputes, such as piracy, marine resource exploitation disputes, and maritime land and land disputes, should also be counted as maritime issues, although they are not natural problems encountered in the ocean.
Only think of the above.
-
The ocean is closely related to the origin of life, and the evolution of living things is inseparable from the ocean. Today, the survival and development of human beings are inseparable from the ocean.
The Earth is insignificant as a planet in the vastness of the universe, but it has a unique feature that eclipses most of the celestial bodies in the universe: it is the only galaxy in the solar system that has a large amount of liquid water. If you take a space shuttle and look down at the Earth, you will clearly see that the inhabited Earth is a pale blue ball of water, and the land is nothing more than islands in the vast ocean. In this sense, it seems more appropriate to call the Earth a ball of water or an ocean ball.
The surface area of the earth is 100 million square kilometers, of which the area of the ocean is 100 million square kilometers, accounting for the entire surface area of the earth; The land area is 100 million square kilometers, which only occupies the entire surface area of the earth.
The ocean has a huge impact on the natural world and the progress of human civilization and society, and the historical process of human social development has always been closely related to the ocean. There is no one who does not believe that human civilization and progress directly benefit from the oceans.
The ocean is the cradle of life, which provides conditions for the birth, evolution and reproduction of life. The ocean is home to wind and rain, and it plays an important role in controlling and regulating the global climate. The ocean is the protection of resources, it provides people with abundant food and endless resources; The ocean is the main road of transportation, which provides an economical and convenient transportation route for human beings to engage in maritime transportation; The ocean is a base for modern high-tech research and development, which provides space for people to explore the mysteries of nature and develop high-tech industries.
Today, as mankind enters the 21st century, the ocean, as a special space on the earth, is far beyond people's original understanding in terms of its material resource value and political and economic value. People's needs for the ocean are no longer just for the benefit of fishermen and boats. The rapid development of science and technology has enabled mankind to march towards the ocean in a marching attitude.
However, no one can deny that the deterioration of the global environment and the abnormal development of the economy in the 20 th century have cast the shadow of the energy, food and water crises over people's heads. The land is overwhelmed, and the ocean has the potential to be a second living space for humanity.
But don't forget, we only have one Earth, and there is only one handful of sea water on Earth. How important the clean and bright sea is to us human beings and to all living beings on the earth!
Let's remember what a Tetsuri once said: The ocean nourishes us, and we are grateful to the ocean. As the offspring of the original cradle of life, our smooth **, the blood in our veins, and the water circulating in our bodies are all owned by the ocean, and we are only a part of the ocean.
-
Because it can ensure the safety of human food.
Evolution from living things.
It is the ocean that gives birth to life on earth and is the mother of life. Human beings are also the product of the continuous evolution of aquatic life, and the ocean is the basic condition for the survival of all life on the earth.
The oceans have a strong regulating effect on the climate, coastal areas.
It is the most suitable area for human habitation on the earth, since ancient times, human beings will consciously choose to settle in areas close to the ocean, and now the population of coastal areas is growing even more, and the population in some areas has exceeded the local population carrying limit.
The ocean is an intact body of water. The ocean itself has a huge capacity to carry, dilute, diffuse, oxidize, reduce and degrade pollutants. However, this ability is not unlimited, and when the toxic and harmful substances accepted by the local sea area are overtaken by the self-purification ability of the local area, it will cause pollution in the sea area.
The current situation of China's economic development has been strictly affected by the balance of the ecological environment, and the rapid development of the marine industry has also caused the same problem. Although the development of the marine industry has greatly promoted the progress of China's economy, the problem of marine environment has also become more prominent.
Therefore, if the problem of marine environmental protection cannot be properly handled, the development of the marine industry will be directly affected, and then indirectly affect the overall development of the marine economy and the national economy. In other words, the protection of the marine environment is crucial to China's economic development.
-
China is a country with many territories and a vast maritime territory, and its geopolitical environment is complex. The surrounding situation is complicated. Territorial and territorial sea disputes are the most important challenges to China's neighborhood.
Countermeasures: China adopts a diplomatic strategy of focusing on economic construction, unswervingly protecting national unity and territorial integrity, safeguarding world peace, insisting on resolving disputes between all parties through diplomatic means, not first using means of war but never fearing war, but never giving up the use of force to defend rights to deal with peripheral challenges.
Introduction: China is located in East Asia, is a unified multi-ethnic country with Chinese civilization as the main body, Chinese culture as the foundation, and Han nationality as the main ethnic group. Chinese generally refer to themselves as the descendants of the dragon, the descendants of Yan and Huang, or the Chinese nation.
China is one of the four ancient civilizations in the world, with a long history, about 5,000 years ago, with the Central Plains as the center, settlements began to appear and then became countries and dynasties, and then went through many evolutions and dynasties. After the Xinhai Revolution in the early 20th century, the monarchy withdrew from the stage of history and the republic was established. After the founding of the People's Republic of China in 1949, a system of people's congresses was established in Chinese mainland.
Topography: China's topography is high in the west and low in the east, with mountains, plateaus and hills accounting for about 67% of the land area, and basins and plains accounting for about 33% of the land area. The mountain ranges are mostly east-west and northeast-southwest, mainly including Altai Mountains, Tianshan Mountains, Kunlun Mountains, Karakun Qianqinlun Mountains, Himalayas, Yin Mountains, Qinling Mountains, Nanling Mountains, Daxing'an Mountains, Changbai Mountains, Taihang Mountains, Wuyi Mountains, Taiwan Mountains and Hengduan Mountains.
Economic Situation: Ancient China had a developed agricultural economy, and its economic scale was ahead of the world for a long period of time. Historically, due to changes in the natural environment and the influence of human factors such as wars, the economy of ancient China usually had a similar cycle as the rise and fall of dynasties.
Since the Ming and Qing dynasties, China has stuck to an agrarian economy, while the Western world took the lead in realizing the industrial revolution during the same period, and China's economy has lagged behind the West. Since the Opium War, China's conservative agrarian economic system has been greatly challenged by the Western world.
With the development of science and technology and the increasing improvement of people's living standards, science has entered thousands of households and gradually integrated into people's daily life. >>>More
The invention of the pixel will bring us a lot of benefits, let us know a lot of knowledge, and let us get a lot of help, the camera will enable us to take all the beautiful moments, and a good camera, must have excellent pixels, the quality of the pixel directly affects our life, the invention of the pixel makes us understand that the original scientific and technological development is for human beings to live a more convenient life, but now feel the convenience at the same time, but also make us feel that the world has changed, We will live harder, more hard life makes us feel that all things in the world are beautiful, but we must believe that falling in love with one thing will definitely benefit us a lot, the invention of pixels, to all of us has brought a lot of convenience, only we can live a better life, bring more inventions and efforts after the results. The invention of pixels has promoted the invention of science and technology, the healthy development of the economy, and made people feel the joy of life more than the primitive society, and people will think that there is such a meaningful thing for us to do. <> >>>More
Hello! 1. Communication. Mobile phones make it easy to communicate between people, and where there is a signal, you can talk no matter how far apart you are. >>>More
Hello, make our life better and better.
May the teacher. Support.
1. The Internet of Things is the golden key to open all the spatial latitudes of the universe and realize the interconnection and sharing of all human-like beings!! 2 The financial world: Blockchain is a new economic and financial behavior that all human beings operate and operate completely under the sun! 3. Big data is a completely complete digital, intensive, integrated collection of all behaviors of human beings, animals and plants, and the operation of heaven and earth. >>>More