Historic macrophyte development in Par Pond

Technical Report · Thu Aug 01 00:00:00 EDT 1985

OSTI ID:6432729

Grace, J B

Aerial photographs from 1975, 1980, and 1983 were examined to evaluate the changes that have occurred in the wetland vegetation of Par Pond, a reactor-cooling reservoir. Evaluation of the aerial photographs was based on comparisons with ground-level vegetation maps made during July 1984. Comparisons of photographs from August and December of 1983 revealed the main seasonal change in the aerial coverage of wetland vegetation to be the wintertime loss of non-persistent emergent species such as Nelumbo lutea and Nymphaea odorata. Comparisons between September 1980 and August 1983 revealed that the lakeward extent of non-persistent macrophytes has increased by an average of 8.2 m, though not all sites have changed equally. For persistent macrophytes (principally Typha), the average increase in lakeward extent between December 1975 and August 1983 was 3.48 m. The extensive development of wetland vegetation in Par Pond as well as the substantial spread of vegetation over only a few years time indicates the high suitability of this habitat for the growth of wetland plants.

• Research Organization: Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
• DOE Contract Number: AC09-76SR00001
• OSTI ID: 6432729
• Report Number(s): DPST-85-841; ON: DE86003148
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
PONDS
ECOLOGICAL SUCCESSION
SAVANNAH RIVER PLANT
AQUATIC ORGANISMS
PLANTS
REACTOR COOLING SYSTEMS
SPATIAL DISTRIBUTION
COOLING SYSTEMS
DISTRIBUTION
ENERGY SYSTEMS
NATIONAL ORGANIZATIONS
REACTOR COMPONENTS
SURFACE WATERS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
520500* - Environment
Aquatic- Site Resource & Use Studies- (-1989)