SUSTAINABLE WATER RESOURCES MANAGEMENT PLANS IN THE TIBER RIVER BASIN FOR ENVIRONMENT PROTECTION, MINIMUM INSTREAM FLOWS REGULATION AND THE TRASIMENO LAKE ECOSYSTEM PRESERVATION (ITALY)

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Description

Location

Demosite Location
Demosite Location

Sketch

Demosite Location

Information about lithology/geochemistry:

Arenaceous flysch (N), carbonate shelf and pelagic deposit (E), clastic deposits in the alluvial valley


Main Description

  • The length of the Tiber River is 405 km. Almost 90% of the Tiber River Basin is covered by the regions of Umbria and Lazio. More than 4 million people living in the basin of which 80% in the Province of Rome.
  • The basin is mainly characterized by small farms and a leading sector in the Tiber valley is hydropower generation plants concentrated in the Nera River basin.
  • Trasimeno Lake is a shallow lake which could host rare species but it is also a well-known touristic area. Since 2006, the lake is part of the international "Living Lakes".

Conserve Ecohydrological processes in natural ecosystem

YES

Enhance ecohydrological processes in novel ecosystem

NO

Apply complementary Ecohydrological processes in high impacted system

YES


This table presents the different categories of ecosystem services that ecosystem can provide, divided in:

Provisioning Services are ecosystem services that describe the material or energy outputs from ecosystems. They include food, water and other resources.
Regulating Services are the services that ecosystems provide by acting as regulators eg. regulating the quality of air and soil or by providing flood and disease control.

Waste-water treatment: Ecosystems such as wetlands filter both human and animal waste and act as a natural buffer to the surrounding environment. Through the biological activity of microorganisms in the soil, most waste is broken down. Thereby pathogens (disease causing microbes) are eliminated, and the level of nutrients and pollution is reduced.

Ecosystem services "that are necessary for the production of all other ecosystem services". These include services such as nutrient recycling, primary production and soil formation.

Habitats for species: Habitats provide everything that an individual plant or animal needs to survive: food; water; and shelter. Each ecosystem provides different habitats that can be essential for a species’ lifecycle. Migratory species including birds, fish, mammals and insects all depend upon different ecosystems during their movements.

Cultural Services corresponds nonmaterial benefits people obtain from ecosystems through spiritual enrichment, cognitive development, reflection, recreation, and aesthetic experiences.

Recreation and mental and physical health: Walking and playing sports in green space is not only a good form of physical exercise but also lets people relax. The role that green space plays in maintaining mental and physical health is increasingly being recognized, despite difficulties of measurement.

Lifezones

Demosite Location
Life zone
Warm Temperate
Dry forest

Precipitation
PPT(mm/yr): 750.0

Temperature
T(ºc): 13.0

Elevation of demosite: 257.0 meters above sea level
Humidity: Sub-Humid
PETr (by year): 1.02

EH Principles

Quantification of the hydrological processes at catchment scale and mapping the impacts

ECOHYDROLOGY ENGINEERING SOLUTIONS

Integrated Lake Basin Management

Hydrological Flow

Rehabilitation of natural flows by monitoring the water withdrawals

Hydrological Flow

Major Issues

  • Poor water quality due to irrational land management.
  • Severe droughts due to irrational water use and possible climate change scenarios.
  • Impact of drought on microbial processes in sediments and on carbon cycling.

Social ecohydrological system

EH Objectives

Water:
Biodiversity
Services
Resilience

EH Methodology

  • The links between the hydrological variability and the ecological processes in water and sediments will be explored in areas of the river catchment with different anthropogenic impact. Particular attention will be given at the relation between water flow and water quality.

Catchment Ecohydrological sub-system

Objectives

  • Starting from scientifically based knowledge, the objective is to harmonise biodiversity protection, stakeholder expectations and administrative constraints to achieve an integrated management of the catchment.

  • Stakeholders

  • Researchers (University of Perugia – IRSA-CNR).

  • Tiber River Authority and Umbrian, Tuscany and Lazio regions.

  • EU Water Framework Directive.

  • Regional Environmental Protection Agency.

  • Catchment Sociological sub-system

    Activities

    • Modelling the Decision Support System.

    • Integrated Lake Basin Management.

    • Development of a set of water resources evaluation and management WEB-GIS Tools (WRME project).

    • Trasimeno Lake Regional Park education proposals.

    Expected Outcomes

    • Preservation measures to minimize the periodic hydrological crisis of the Trasimeno lake


    Latest Results

    • The results highlight the extreme hydrological vulnerability of Lake Trasimeno in relation with climate change (for temperature, a rate of change of about +5°C century¹, and for precipitation, about −30% century¹ for the basin) between 1969-1999 (Ludovisi et al., 2013). Giardino et al. (2010) confirmed the meso-eutrophic conditions of Lake Trasimeno (average Chl-a = 8.5 mg/m³). A reduction in macrophyte beds from 2003 to 2008 was also observed.

    Contacts

    Stefano Casadei

    • casadei@unipg.it
    • www.unipg.it
    • University of Perugia

    Overview

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