Funny pic/gif thread...

Old growth natural forest vs. today's replanted forest with tree spacing for faster growth.
Also hardwoods vs. evergreens. Hardwoods grow until dormancy (winter) while evergreens may grow year round. Most every old growth forest in the South was replanted with pine species.
 
Just a guess here, but this makes sense...
Genetically engineered trees made to grow faster. They kept replanting varieties that grew the fastest and this is what they ended up with
That too...I had a friend who worked running a tree nursery for a large timber company. Grew seedling for replanting projects. Not so much genetic engineering, but seeds selected for high growth rate, the various altitudes the trees to be planted at, etc. Trees are just another crop...that takes longer to reach harvest than corn.

Here in Oregon the Douglas Fir is king, although others are grown...grand fir for Plywood veneers, etc.
 
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