Experimental treatments were applied in 2001 using a full factorial design consisting of two levels of burning and three levels of thinning, and included: unburned unthinned (UN), unburned overstory thinned (US), unburned understory thinned (UC), burned unthinned (BN), burned understory thinned (BC), and burned overstory thinned (BS).
The thinning treatments consisted of an unthinned control and three levels of thinning.
Volume trajectories are shown for four levels of thinning at a site index of 29 m.
There were two levels of thinning (heavy and medium) as well as an unthinned control.
We monitored gross rainfall, throughfall, stemflow and rainfall interception loss in three stands with varying levels of thinning and pruning.
Experimental plots maintaned by the USDA Forest Service Pacific Northwest Research Station [19] offer an opportunity to estimate carbon change over time with varying levels of thinning.
All levels of thinning increased the yield of the stand in terms of foliage and branch biomass, while only light or moderate thinning increased bole biomass and volume yields.
To evaluate the fitted models, volume was plotted against age at 4 levels of thinning that occurred at age 30 assuming a site of medium quality (site index = 29 m) for both species (Figure 2).
We conducted our study in the Teakettle Experimental Forest where a full factorial design was implemented with three levels of thinning, none (N), understory thinning (U), and overstory thinning (O; September to October 2000 for thin burn combination and June and July 2001 for thin only treatments) and two levels of burning, none (U) and prescribed burning (B; fall of 2001).
We evaluated the response of amphibians and reptiles to two levels of prescribed burning and three levels of thinning using a field experiment consisting of a before after, control-impact, and factorial complete block design over a four year period in the William B. Bankhead National Forest located in northwestern Alabama.
