Oxygen releasing capacity of trees

[br945]

I am interested in lterature on the net which provides details of
oxygen releasing capacities of various trees i.e. relative quantum of
oxygen released by the trees.

Also there are trees which are believed to be releasing oxygen during
day as well as night. It would be interesting to have a lst of such
trees and any scentific proof of the same.

[b...@cs.toronto.no-uce.edu]

In article <15894dee-605b-4bdc...@13g2000prl.googlegroups.com>,

br945 <br...@hotmail.com> wrote:
>I am interested in lterature on the net which provides details of
>oxygen releasing capacities of various trees i.e. relative quantum of
>oxygen released by the trees.

"Trees" encompasses tens or hundreds of thousands of species of many
different groups of plants. Rates of photosynthesis depend on
temperature, light exposure and intensity, water, CO2 and mineral
nutrient availability, season, health, age and other factors.

>Also there are trees which are believed to be releasing oxygen during
>day as well as night. It would be interesting to have a lst of such
>trees and any scentific proof of the same.

Oxygen is produced by photosynthesis, which requires light. However,
plants that need to conserve moisture often have some mechanism for
limiting gas exchange to darkness, when the ambient air is cooler and
more moist.

Like just about every simple question about biology, the only real
answer is "It depends".