"Marine Utilization and Protection" PPT

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"Marine Utilization and Protection" PPT

Part One: Pre-evaluation

How many kilometers of coastline does our country have, and which offshore waters does it border?

Our country has more than 18,000 kilometers of coastline and is bordered by four sea areas: the Bohai Sea, the Yellow Sea, the East China Sea, and the South China Sea.

Which temperature zones does my country's seas span from north to south?

It spans three temperature zones: warm temperate, subtropical and tropical.

Marine utilization and protection PPT, part 2: diverse biological resources

1. Superior marine natural conditions

Think about it:

my country is very rich in marine biological resources, with more than 20,000 species, including more than 3,000 species of fish. So, what are the favorable natural conditions that contribute to the richness and diversity of my country's marine biological resources?

The earth spans multiple temperature zones;

The continental shelf is vast;

Sea water temperature is moderate;

Large rivers bring abundant bait;

The intersection of cold and warm currents makes it suitable for warm and cold water fish to survive

2. Four major seafood and four major fishing grounds

Find it:

my country’s four famous seafood?

Large yellow croaker, small yellow croaker, hairtail, squid

Which four major fishing grounds do they mainly come from?

Yellow and Bohai Sea Fishing Ground Zhoushan Fishing Ground

South China Sea Coastal Fishing Grounds Beibu Gulf Fishing Grounds

Which fishing ground is the largest?

Zhoushan Fishing Ground

Marine utilization and protection PPT, part three: rich mineral resources

1. Undersea oil and gas resources

my country's marine resources are rich in oil and natural gas. Among them, oil reserves reach 2.2 billion tons and natural gas reserves reach 48 billion cubic meters, and new oil and gas fields are constantly being discovered.

2. Coastal placer resources

Zircon: resistant to high temperatures and corrosion, used in nuclear reactors and nuclear submarines

Quartz sand: silicon, high melting point, semiconductor; raw material for electronic products

Titanium: small specific gravity, high strength; corrosion-resistant and high-temperature resistant; used in missiles, rockets, and aviation industries.

Ocean utilization and protection PPT, part 4 content: Huge amounts of chemical resources

1. The value of sea water

With the advancement and development of science and technology, people's understanding of seawater has gradually deepened. It has been determined that seawater contains more than 80 elements. my country's current development and utilization of marine chemical resources mainly extracts sea salt and chemical elements such as magnesium, bromine, and iodine from seawater. , and desalination of seawater, etc.

2. Sea salt production and major salt fields

The main salt fields in my country are:

northern salt area

Changlu Saltworks—the largest saltworks

Huaibei Saltworks

southern salt area

Budai Saltworks

Yinggehai Salt Field

Marine Utilization and Protection PPT, Part 5: Utilization of Marine Space

Discussion: In today's world, the ocean has become a "blue land" that various countries and regions are vying to use. What do you think the use value of ocean space is?

Marine space can be divided into five categories according to its purpose of use:

①Production place ②Storage place

③Transportation facilities ④Residence and entertainment places

⑤Military base.

Ocean utilization and protection PPT, Part 6: Protecting the "Blue Land"

1. Problems in the utilization of marine resources

What are the serious problems facing China's marine resource development?

Frequent marine disasters

Environmental pollution intensifies

Depletion of offshore fishery resources, etc.

What are the main causes of marine environmental pollution?

industrial wastewater pollution

oil contaminants

Red tide disasters, etc.

2. Protection of marine resources and environment

Comprehensive management

Management according to law (anti-pollution)

Scientific utilization (fishing moratorium)

Keywords: Free download of Geography PPT courseware for the second volume of eighth grade version of Business Planet Edition, PPT download of ocean utilization and protection, .PPT format;

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"Ocean Utilization and Protection" PPT download:

"Ocean Utilization and Protection" PPT Download Part One: Forming Conditions What are the natural conditions that form the rich and diverse marine biological resources in my country? ① Across three temperature zones ② The seawater temperature is moderate ③ The continental shelf is wide. What three categories can marine biological resources be divided into? ..

"Marine Utilization and Protection" PPT courseware:

The first part of the PPT courseware "Ocean Utilization and Protection": Course content: Think about the diverse biological resources. my country's marine biological resources are very rich, with more than 20,000 species, including more than 3,000 species of fish. Then, the formation of our country's oceans Rich in biological resources...

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Update Time: 2024-09-09

This template belongs to Geography courseware Business Planet Edition Geography for Eighth Grade Volume 2 industry PPT template

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