Is it true that when a tree/plant dies, all of the carbon dioxide within it is released?

Question

I've heard people mention this before, and I just wondered whether the claim had any scientific grounding.

Answer 1

No,there is no truth in this,it's a myth.

Answer 2

The carbon dioxide when it goes into the tree becomes cellulose and other materials that make up the plant. Carbon dioxide can be produced from a dead tree or plant immediately by burning it. The carbon in the carbon compounds within the tree combine with oxygen to produce carbon dioxide. There are other products also notably water and ash ( the primary component of which is potassium carbonate and carbon (charcoal)) A slower method of releasing the carbon in the tree as the process of decay which can produce carbon dioxide as well as other gasses. There are by products in both processes, so it is impossible for there to be as much carbon dioxide produced, as was used in forming the tree. {Release of carbon dioxide is not the same thing as production of carbon dioxide.}

You should also check Yahoo Y! Carbon Cycle--Image Results for a good picture of how the carbon cycle works.

Answer 3

There is no supply of carbon dioxide in an tree or plant. When it dies, it decomposes and gives off methane and a bunch of other gasses in the process.

Answer 4

Not all at once. However, as the dead plant rots, it does release differing gasses (many of them greenhouse gasses, such as methane) into the air. This is why many "green" people have no problem with gathering up dead wood in the forest to burn for fuel.