Photosynthesis by Trees : 4 posts by 3 authors.

I will be obliged to know the following.
1. Ratio of ‘Oxygen liberated by a tree in daytime’ to ‘Oxygen absorbed by a tree at night’.
2. Ratio of ‘Oxygen liberated by a tree in daytime in summer’ to ‘Oxygen liberated by a tree in daytime in rainy season’
The figures may be approximate and I assure that the source will not be quoted anywhere. These simple queries have been raised repeatedly but every one refrains from answering. Pls provide,

Please see whether the attached file helps you.
One thing that we can say is that it all depends on the leaf surface-area in proportion to (mean) number of stomata ( present in unit area in leaves of individual trees.  
The rate will obviously different in different season. 
8 Math – Area, How much oxygen is produced ln 10.pdf