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We
compared canopy and ground layer vegetation, soil texture, and soil
N of sandy (S) and clayey (C) sites subjected to heavier (H) or
lighter (L) military use (8 400m x 400m sites of each combination;
Figure 3). All sites were burned in spring, 2000. |
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Disturbance
features were surveyed by line intercept along 2 300m transects
in each site. |
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A
100m x 100m plot was established in each site to survey vegetation.
Five transects, with sampling points at every 20 m, were established
at 20 m intervals within the plot (total 25 points). At each point,
trees were surveyed by the point quarter method and ground cover
was sampled by line intercept along a 6 m transect. |
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Soil texture was determined at 9 locations per site using a Micro-pipette
Method. Four samples were removed from each site for soil NO3-N
and NH4-N analysis. |