Different trees respond to different types of logging practices.. Go to the clear cuts 5 yrs later and see the response .Indiana's forest are on average only 75 to 80 years old there should be a larger harvest now I am going to a forestry workshop at SEPAC where you can see the regrowth response I was there 2 yrs ago when the different harvest methods were done they are not just turning people loose with chainsaws a lot of thought goes into a harvest