Depressions, or dolines, are fairly common, although cenotes open to the water table are exceedingly rare in most of the study area.
Likewise, failure and success may not always be predicted by distance from the coast or depth of the water table.
These changes he interpreted as a response to variations in water table levels.
The water table in the experimental site ranged from 1.2 to 1.4 m throughout the crop growth periods.
Because the water table was below 2.0 m depth, the soil was medium textured, and the area was flat, capillary rise was ignored.
Nodulation occurred on tabular buttresses in horizontal lines just above the water table level.
The nodules below the water table showed a similar distribution of colour.
These gradual rises in the number of plant species reflect improved peat-forming conditions resulting from local rises of the water table.
