منابع مشابه
Denitrification Capacity in a Subterranean Estuary below a Rhode Island Fringing Salt Marsh
Coastal waters are severely threatened by nitrogen (N) loading from direct groundwater discharge. The subterranean estuary, the mixing zone of fresh groundwater and sea water in a coastal aquifer, has a high potential to remove substantial N. A network of piezometers was used to characterize the denitrification capacity and groundwater flow paths in the subterranean estuary below a Rhode Island...
متن کاملSalt Marsh Tidal Channels
Salt marsh tidal channels are highly sinuous. For this project, field surveys and aerial photographs were used to characterize the planform of tidal channels at China Camp Marsh in the San Francisco Bay, California. To model the planform evolution, we assume that the topographic curvature of the channel centreline is a key element driving meander migration. Extraction of curvature data from a p...
متن کاملDenitrification in Marsh-Pond-Marsh Constructed Wetlands Treating Swine Wastewater at Different Loading Rates
Denitrification in constructed wetlands can be very important in the treatment of swine lagoon effluent when land application areas are limited. The objectives of this investigation were to determine (i) the denitrification enzymeactivity (DEA) in themarsh sediments ofmarshpond-marsh (MPM) constructed wetlands, (ii) changes in DEA with additions of carbon and nitrate, and (iii) the response of ...
متن کاملFood webs and parasites in a salt marsh ecosystem
Our mothers teach us to grill our meats " well done " and chew them thoroughly. Even if mom did not know why she insisted, both are good precautions against parasites. Parasites may be in our food, but they are not in our food webs. Is it necessary to take the precaution of considering them? In this chapter, we argue that parasites affect important properties of food webs and that it may be dif...
متن کاملMercury mobility in a salt marsh colonised by Halimione portulacoides.
The present study intends to increase the knowledge on the mobility of mercury in a salt marsh colonised by Halimione portulacoides. Mercury distribution in the sediment layers and its incorporation into the plant biomass were assessed, as well as the potential export of mercury from the contaminated area to the adjacent environment. Mercury pools in the sediments ranged from 560 to 943 mg m(-2...
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ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 1979
ISSN: 0024-3590
DOI: 10.4319/lo.1979.24.4.0726