Air temperatures, water salinities and temperatures and various vegetation measurements have been used to study the development of the experimental marsh at Harrington. Climatic conditions, (rain and desiccation) influenced the wetness of the marsh surface and plant growth. Drier conditions were more conducive to plant growth and spread. Although relatively few species have colonized the bare surfaces of the dump and plug area, those that have e.g. Scirpus are growing and spreading rapidly. Spartina patens has not spread from the plugs but seeded Spartina Alterniflora has developed on the barren substrates. Growth of Spartina patens in the sod area is comparable to growth in the best control sites. Plant biomass was highest in the control area and the sod area. Lowest values occurred in the dump area. Productivity was also highest in the control and the sod area. Net productivity at most experimental sites increased from 1977 to 1978. Net productivity for the total experimental marsh averaged 357g/m square/yr. Excluding the pond and salt pans, these calculations give a value of 609g/m square/yr. and closely approximates other high marshes in Maine.

  • Corporate Authors:

    Maine Department of Transportation

    Materials and Research Division, Box 1208, Hogan Road
    Bangor, ME  United States  04402

    University of Maine, Orono

    Department of Botany and Plant Pathology
    Orono, ME  United States  04473
  • Authors:
    • Vadas, R L
  • Publication Date: 1979-8

Media Info

  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00302220
  • Record Type: Publication
  • Report/Paper Numbers: 79-7 Tech Paper
  • Created Date: Jan 30 1980 12:00AM