Aspects of carbon and nitrogen cycling in a Spartina dominated salt marsh on the Northumberland Strait, Nova Scotia; and the effects of impoundment / Annamarie Irene Hatcher
Material type:
TextPublication details: Halifax, NS : Dalhousie University, 1977.Description: 110 leaves : ill., 29 cmOnline resources: Abstract: Annual pure stand above ground production of the three dominant macrophytes in a salt marsh on the Northumberland Strait, Nova Scotia was 317. gms. c/m2 for Spartina alterniflora, and 152. gms. c/m2 for Spartina patens, measured at peak biomass; and 56.3 gms. c/m2 for Zostera marina, measured in December, before winter ice cover. Total organic carbon loss, monitored in the tides, combined with estimates of winter carbon losses through decomposition and ice scour of S.alterniflora and S. patens yielded an annual export figure of 80. gmc.c/m2/yr., approximately 50% of the area weighted mean macrophyte production. Nitrogen input to the study area through nitrogen fixation on the soil surface and within the rhizospheres of S. alterniflora and S. patens is of similar magnitude to nitrogen imported by tidal waters in the forms of ammonia, nitrate and nitrite. The enclosure of 34 ha. of the Wallace Bay salt marsh with a constant flooding regime was completed in September, 1974 to encourage
| Item type | Current library | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Book
|
Amherst Office Stacks | Non-fiction | HAT (Browse shelf(Opens below)) | Available | 13983 | |
Electronic Report
|
Electronic Library | Non-fiction | HAT (Browse shelf(Opens below)) | Available | 1482 |
Browsing Electronic Library shelves Close shelf browser (Hides shelf browser)
Thesis(M.Sc.)--Dalhousie University, 1977.
Includes bibliographical references (leaves 76-80).
Annual pure stand above ground production of the three dominant macrophytes in a salt marsh on the Northumberland Strait, Nova Scotia was 317. gms. c/m2 for Spartina alterniflora, and 152. gms. c/m2 for Spartina patens, measured at peak biomass; and 56.3 gms. c/m2 for Zostera marina, measured in December, before winter ice cover. Total organic carbon loss, monitored in the tides, combined with estimates of winter carbon losses through decomposition and ice scour of S.alterniflora and S. patens yielded an annual export figure of 80. gmc.c/m2/yr., approximately 50% of the area weighted mean macrophyte production. Nitrogen input to the study area through nitrogen fixation on the soil surface and within the rhizospheres of S. alterniflora and S. patens is of similar magnitude to nitrogen imported by tidal waters in the forms of ammonia, nitrate and nitrite. The enclosure of 34 ha. of the Wallace Bay salt marsh with a constant flooding regime was completed in September, 1974 to encourage