Article Figures & Data
Figures
- Figure 1.
A concerned resident examines a hazardous sidewalk in Gilroy, California, which resulted from uneven displacement of adjacent sections of the sidewalk by roots of a nearby American sweetgum tree (Liquidambar styraciflua) (From Wilson (8), by permission of The Dispatch, Gilroy, California).
- Figure 2.
Schematic representation of the treatments on the European hackberry trees, as follows (L to R): 35-cm rootball without casing (a1, b1), 35-cm rootball with casing (a1 b2, 70-cm rootball without casing (a2 b1, 70-cm rootball with casing (a2 b2).
- Figure 3.
Panoramic view of the experiment with excavation of the roots in progress.
- Figure 4.
Representative amount of roots of European hackberry exposed in the excavation pit for each of the four treatment combinations, as follows: top row, 35-cm rootball; bottom row, 70-cm rootball; left column, no rootball casing; right column, rootball casing, which functioned as a root barrier.
- Figure 5.
Mean dry weights of European hackberry roots for the four rootball type/barrier treatment combinations, based on 10 replications for both of the 35-cm rootball treatments and 11 and 9 replications for the 70-cm rootballs, without and with the casing treatment, respectively; brackets atop each column represent plus and minus one standard error of that mean (SEM).
- Figure 6.
Simultaneous 95 percent confidence intervals (Bonferroni method) for stem diameters of European hackberry trees for each of four rootball/constraint treatment combinations (a1b1, 35-cm rootball, without casing; a1b2, 35-cm rootball, with casing; a2b1, 70-cm rootball, without casing; a2b2, 70-cm rootball with casing) at the end of growing seasons 1986,1987, and 1988.
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