Force in pounds required to pull over ash trees growing within surrounding root barriers or open grown, under two levels of soil moisture. Means are not significantly different when analyzed with a T-test.
Tree | Treatment | |||
---|---|---|---|---|
Soil dry | Soil saturated | |||
Barrier | Control | Barrier | Control | |
1 | 2,000 | 1,735 | 3,030 | 1,290 |
2 | 2,800 | 2,150 | 3,550 | 1,725 |
3 | 2,225 | 2,000 | 2,000 | 3,175 |
Average | 2,341 | 1,961 | 2,860 | 2,063 |