NJ Natural Heritage Program, NJDEP Division of Parks and Forestry, Office of Natural Lands Management, 22 S. Clinton Ave, Plaza Bldg 4, Fl. 4, PO Box 404 Trenton, NJ, 08625-0404
GPS readings for other 3 plot corners: 1-SE) 41.01482, -74.79546; 2-SW) 41.01479, -74.7955; 3-NW) 41.0148, -74.79552
Shape
Rectangular
Area
10
m²
Permanence
permanent plot
Layout Narrative
Plot is 2 x 5 m, located at 28-30 m on the west side of the transect. Transect endpoints are permanently marked with rebar. Distance and compass bearing measurements to the plot location with measurements of plot orientation off the transect were taken. GPS coordinates for each corner of the plot was taken with submeter accuracy.
Environment Fields:
Elevation
180
m
Slope Aspect
(n/a, flat)
º
Slope Gradient
1
º
Topographic Position
Basin floor
Landscape Narrative
Von Post scale of peat decomposition = H8.
Soil Texture: Organic - silty muck; Mineral - marl
Environmental comments: Monoculture of Leersia.
Overall Taxon Cover Values are Automatically Calculated?
no
Plot Quality Fields:
Plot Validation Level
(1) occurrence plot: sufficient for determining type occurrence
Overall Plot Vegetation Fields:
Field Cover
95.7
%
Dominant Stratum
Herb
Growthform1 Type
Herbs
Misc Fields:
Observation Narrative
Community Type: calcareous sinkhole pond
Community Description: Leersia oryzoides - Boehmeria cylindrica - Ranunculus flabellaris herbaceous vegetation.
Other associated species present but not in plot: Scirpus acutus, Bidens frondosa, Carex lupulina, Ranunculus flabellaris, Echinochloa muricata var. muricata.
Large red millipede present.
10 YR 2/1 muck, ph at 15.2 cm (muck) = 6.2 (blue) and 6.8 (red), water table at 17.8 cm
A
35.6
m
43.2
m
10 YR 2/1 silty muck
B
43.2
m
48.3
m
2.5 Y 4/1 with gley1, 5/5 GY small clay mottles
B
48.3
m
68.6
m
2.5 Y 8/1 with gley1, 6/10 Y evenly distributed mottles, marl, silty clay with friable, chalky, heavy shells, ph at 61 cm (marl) = 7.6 (blue) and 7.6 (red)
