The present paper reviews a number of emerging self-sediment engineering technologies to manipulate intertidal zones, many of which are finding wide acceptance by practitioners, although many of these were first used some time ago: salt marsh inducement, set-back, tidal flat regeneration, etc. all have their place.
Sediment tracing technology relies on the use of natural biogeochemical tracers to identify sediment sources in a watershed.
Simons and Senturk (1977) discussed sediment transport technology.
This improves sediment tracer technology by presenting a method to model the spatial distribution of biogeochemical tracers.
In situ treatment is generally less disruptive and less expensive than traditional sediment cleanup technologies.
The parts of the experimental domain in which both sediment- and technology-specific remediation objectives were met were identified.
Current (eco- toxicological information for in situ seco- toxicologicaln technologinformationmentary and incomplete or entirely missing, making also the interpretation oforxinting data quite challenging.
Gauging with sediment-surrogate technologies during the first two years downstream from the project measured 8,200,000 ± 3,400,000 tonnes of transported sediment, with 1,100,000 and 7,100,000 t moving in years 1 and 2, respectively, representing 3 and 20 times the Elwha River annual sediment load of 340,000 ± 80,000 t/y.
The nitrogen stable isotope of surface soils is modeled across the landscape and was chosen due to (i) its ability to reflect land management changes across the landscape, (ii) the lack of understanding regarding its distribution at the watershed scale, and (iii) its recent successful use within sediment tracer technologies and anticipated future use.
