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How is oxygen produced?

2025-11-28 14:32:33 educate

How is oxygen produced?

Oxygen is an important gas for the survival of life on earth, and its production process involves various mechanisms in nature. This article will combine recent hot topics and scientific knowledge to introduce the source of oxygen and its related data in detail.

1. How oxygen is produced in nature

How is oxygen produced?

Oxygen is produced in three main ways:

Production methodmajor playersContribution ratio
photosynthesisPlants, algae, cyanobacteriaabout 70%
Photolysiswater vapor in the atmosphereabout 10%
Artificial oxygen productionindustrial equipmentabout 20%

2. Photosynthesis: the main source of oxygen

Photosynthesis is the most important source of oxygen on earth, and its chemical equation is:

6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂

The following is the contribution data of major ecosystems around the world to oxygen production:

ecosystemArea (millions of square kilometers)Annual oxygen production (billion tons)
tropical rainforest17.0280
marine phytoplankton361.0330
temperate forest10.4150

3. Recent hot topics: Oxygen contribution to the Amazon rainforest

Recently, discussions about the status of the Amazon rainforest as the "lungs of the earth" have become a hot topic. Research shows:

research instituteResearch resultsPublication time
NASAThe Amazon produces 20% of the world’s oxygenAugust 2023
Cambridge UniversityOcean phytoplankton produce more oxygen than AmazonSeptember 2023

4. Development of artificial oxygen production technology

With the advancement of technology, artificial oxygen production has become an important supplement:

technologyPrincipleefficiency
cryogenic methodair liquefaction separation99.5% purity
PSA methodMolecular sieve adsorption93-95% purity
electrolyzed water2H₂O→2H₂+O₂High energy consumption

5. Change trend of oxygen concentration

Global atmospheric oxygen content monitoring data shows:

YearAtmospheric oxygen content (%)Changing trends
190020.95stable
200020.90slight decrease
202320.88Continuous decline

6. Recommendations for protecting oxygen production systems

Based on recent research and data, the following measures are recommended:

1. Strengthen forest protection, especially tropical rainforests

2. Reduce marine pollution and protect phytoplankton

3. Promote clean energy and reduce carbon emissions

4. Develop efficient artificial oxygen production technology

Oxygen is the basis of life. Understanding its production mechanism and taking protective measures are crucial to the sustainable development of mankind.

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