At the 9th Conference of the Parties to the United Nations Framework Convention on Climate Change held in June 5-38+February, 2003, the international community reached an agreement on incorporating forestry activities such as afforestation and reforestation into carbon sink projects, and formulated new operating rules, which created favorable conditions for the formal implementation of afforestation and reforestation carbon sink projects.
On June 28th, 2020, 10, an international team's research report in Nature once again showed that the "carbon sinks" in southwest and northeast China accounted for a little more than 35% of the whole land of China.
Forest carbon sink:
Forest plants absorb carbon dioxide in the atmosphere and fix it in vegetation or soil, thus reducing the concentration of carbon dioxide in the atmosphere. Soil is the largest carbon pool in terrestrial ecosystem, which plays a very important and unique role in reducing the concentration of greenhouse gases in the atmosphere and slowing down global warming.
Relevant data show that although the forest area only accounts for 1/3 of the total land area, the carbon storage in forest vegetation area accounts for almost half of the total land carbon pool. Trees absorb a lot of carbon dioxide in the atmosphere through photosynthesis and slow down the greenhouse effect. This is commonly referred to as forest carbon sink. Carbon dioxide is an important nutrient for forest growth.
It converts absorbed carbon dioxide into sugar, oxygen and organic matter under the action of light energy, providing branches, stems, roots, fruits and seeds for the biological world, and providing the most basic material and energy source. This transformation process forms the carbon sequestration effect of forests. Forests are absorbers, reservoirs and buffers of carbon dioxide. On the contrary, once the forest is destroyed, it becomes a source of carbon dioxide emissions.