I think Forests as wood biomass to be extracted first followed by charcoal and finally coal. There will be overlapping and functional classification.

Thank for your answer Mr. Kenneth & Mr. Manmohan.

The forest I mind hear are timber, that used for construction not a biomass like non-timber forest. So if I would be extracting both of them together for whole long time, so how much I get the benefit and could it become optimization, instead of extracting one by one? Could you suggest me what literature discuss it's topic? Thank you for your attention.  

Martwein, I'm not sure if this is what you're after, but you might benefit from reviewing a basic forest planning textbook. Quantitative forest planning considers the economics of alternative land use plans over long time scales (e.g. 50+ years) and large spatial extents (e.g. 1 Mha, as you say). Most commonly in forestry, we use forest planning methods to choose among alternative sustainable harvest scheduling options for producing timber. How many acres are cut and planted at a given time, and using which silvicultural systems, etc based on the concept of stand rotation. However, optimization methods like linear programming and more commonly now heuristic methods can also be used to solve how much land is allocated to different uses (e.g. how many hectares in coal mining vs. the number in timber production, etc.) based on the present value of future costs and revenues. The best basic reference for an introduction to quantitative forest planning is Forest Management and Planning by Bettinger, Boston, Siry and Grebner. You might have a look at Dr. Pete Bettinger's researchnet page, which has many great references on these sorts of land use allocation problems in natural resource management. 

https://www.amazon.com/Forest-Management-Planning-Peter-Bettinger/dp/0123743044