Lawsona (Orange County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°32'28", Longitude 81°21'51"
Period of record: 70 sampling dates; November 17, 1990 to March 31, 1997
Surface area (Shafer et al. 1986): 8 acres / 3 hectacres
Lake Region (Griffith et al. 1997): Orlando Ridge
Geologic formation (Brooks 1981):
The geology is dominated by phosphatic sand, silty sand, and clay of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Orlando Promontory division of the Central Lake District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 70 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
41 |
106 |
204 |
|
Long-term total nitrogen concentrations (µg/L) |
470 |
1120 |
2370 |
|
Long-term total chlorophyll concentrations (µg/L) |
6.7 |
35.8 |
125.7 |
|
Long-term Secchi depth (ft) |
1.0 |
3.1 |
6.0 |
Florida LAKEWATCH data were not collected in 1999.
Lawsona (Orange County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on June 22, 1993
|
Percent area covered with aquatic vegetation (PAC, %) |
10 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
1 |
|
Average emergent plant biomass (kg wet wt/m2) |
6.8 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
0.0 |
|
Average submersed plant biomass (kg wet wt/m2) |
0.0 |
|
Average width of emergent and floating-leaved zone (ft.) |
12 |
|
Average lake depth (m) |
2 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
alligator-weed |
Alternanthera philoxeroides |
60 |
|
giant bulrush |
Scirpus californicus |
50 |
|
giant spikerush |
Eleocharis interstincta |
30 |
|
water primrose |
Ludwigia octovalvis |
20 |
|
common duckweed |
Lemna minor |
10 |
|
cat-tail |
Typha spp. |
10 |
|
elephant-ear |
Colocasia esculenta |
10 |
|
willow |
Salix spp. |
10 |
|
para grass |
Brachiaria mutica |
10 |
|
elderberry |
Sambucus canadensis |
10 |
Back to L lakes page