Salta ai contenuti. | Salta alla navigazione

Strumenti personali

Sezioni

You are here:HomeCurrent activitiesA - Preparatory Actions

A - Preparatory Actions

Course for the transplant of reeds and aquatic phanerogams

The Life Lagoon Refresh project involves, among Conservation Actions, the transplant of seagrass and reeds in the Northern Venice Lagoon.

On July 12th 2019 a training course was organized at the Natural History Museum of Venice in order to involve stakeholders (fishermen and hunters) who will take care of these activities.

The course was held by researchers and professors from ISPRA and DAIS-Università Ca' Foscari of Venice and  it involved twenty practitioners. The topics of the course covered general aspects of the project’s purpose and content, specific aspects of biology, ecology and recognition of reeds and aquatic phanerogams as well as intervention methodologies for transplants and effects on fish and bird species.

This theoretical course will be followed by a practical course directly on field in the Venice Lagoon

Modelling activity

Numerical modelling was used as a supporting tool to investigate the circulation pattern and to define the most suitable project configuration. In particular, two- and three-dimensional hydrodynamic models were set up and used to optimize the rate of freshwater inflow (Action A.3) from the Sile river and the configuration of the morphological works (Action A.4), in terms of salinity diffusion and hydraulic effects.

The effect of the diversion on saline wedge intrusion in the Sile river was also assessed.

Project final design

 

 

The final design phases were all completed, including location of works, sizing, choice of materials, definition of construction details and schedule of execution. In particular, the design Actions A.3 and A.4 led respectively to the definition of the technical-operational details functional to the construction of the input of fresh water from the Sile to the lagoon (Action C.1) and to the realization of the morphological reconstruction (Action C.2).

The detailed technical aspects were defined on the basis of the collection of existing data and of the results of the preparatory investigations (Action A.2).


 

Topo-bathymetric survey

 

The topo-bathymetric survey of the Sile river embankment, where hydraulic work will be realized (Action C.1), and of the tidal area, where the morphological reconstruction will be carried out (action C. 2), was completed in order to have an updated elevation description of the project area. The survey was carried out by project partners OOPP and IPROS.

Using previously available data as well as results of surveys carried out within the project, a digital DEM (Digital Elevation Model) was created over an area of about 2 km² and with a resolution of 1 point/m².