hiilisyklien

Hiilisyklien, also known as carbon cycles, refer to the natural processes by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. These cycles are crucial for maintaining the Earth's climate and supporting life. The primary carbon cycle involves the exchange of carbon between the atmosphere, terrestrial ecosystems, and the oceans. Carbon dioxide (CO2) is absorbed by plants during photosynthesis, where it is converted into organic compounds. This process is essential for plant growth and the production of oxygen. When plants and animals die, their organic matter is decomposed by bacteria and fungi, releasing CO2 back into the atmosphere. Additionally, carbon is stored in the soil and sediments over long periods, forming fossil fuels like coal, oil, and natural gas. Human activities, such as burning fossil fuels and deforestation, have significantly altered the natural carbon cycle, leading to increased CO2 levels in the atmosphere and contributing to climate change. Understanding and managing the carbon cycle is vital for addressing environmental challenges and promoting sustainable development.