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| Cedrino (river) | |
|---|---|
| Name | Cedrino |
| Native name | Cedrìnu |
| Country | Italy |
| Region | Sardinia |
| Length km | 80 |
| Source | Gennargentu |
| Source elevation m | 1200 |
| Mouth | Tyrrhenian Sea |
| Basin km2 | 1500 |
| Tributaries | Flumendosa (note: not direct), Rio Pira, Rio Cedrinu |
Cedrino (river) is a river in central-eastern Sardinia on the island of Italy, flowing from the Gennargentu massif to the Gulf of Orosei on the Tyrrhenian Sea. The river traverses multiple comuni including Nuoro and Orosei, shaping valleys, traditional settlements, and riparian ecosystems. Over centuries the Cedrino has figured in regional agriculture, pastoralism, transportation, and cultural memory tied to local writers and artists.
The Cedrino rises on the eastern slopes of the Gennargentu range within the Province of Nuoro and drains a basin that includes parts of the Barbagia uplands and coastal plain near Orosei. Its watershed abuts catchments of the Flumendosa and Tirso systems and lies within the biogeographic boundaries of the Mediterranean Basin and the Sardinian bioregion. Prominent geographic features in the basin include the Monte Spada, the limestone karst plateaus of Supramonte, and the coastal dunes north of Golfo di Orosei. The Cedrino corridor connects inland mountain communities such as Torpè and Galtellì with maritime settlements like Orosei and Bari Sardo.
From springs on slopes near Punta La Marmora in the Gennargentu National Park area the Cedrino follows an east-northeast course, passing through narrow gorges carved into limestone and schist before entering broader alluvial valleys. The river flows by the medieval town of Galtellì and the archaeological sites near Tiscali before reaching the plain at Orosei. Its mouth opens into the Gulf of Orosei near the Marina di Orosei littoral, where the estuary interacts with coastal lagoons and the beach systems of Cala Liberotto and Cala Luna. Along its course the Cedrino receives seasonal inflow from smaller streams such as Rio Pira and ephemeral torrents descending from the Supramonte di Dorgali.
The Cedrino exhibits a typical Mediterranean hydrological regime with high discharge periods during autumn and spring rains and low flows in summer droughts. Annual precipitation in the headwaters is influenced by orographic lift over the Gennargentu and by storms associated with the Mediterranean cyclone patterns. Groundwater in karst aquifers contributes baseflow; sinkholes and underground channels in the Supramonte influence recharge and intermittency. Historical gauging at sites near Galtellì records peak flood events tied to intense convective storms, while low-flow records reflect increased abstraction for irrigation and reservoir regulation upstream.
Riparian habitats along the Cedrino host a mosaic of Mediterranean maquis, holm oak groves, and reedbeds supporting fauna such as wild boar, red fox, and migratory passerine birds. Aquatic communities include endemic Sardinian fish and invertebrates adapted to variable flows, while otters appear in still stretches. The river corridor provides habitat connectivity for species associated with the Supramonte and coastal dunes, and supports amphibians in seasonal wetlands near Marina di Orosei. Vegetation includes Quercus ilex stands, Pistacia lentiscus, and riparian willows; these plant assemblages are important for erosion control and nutrient cycling in the basin.
The Cedrino valley has been inhabited since prehistoric times with Nuragic sites and Roman-era remains documented near river terraces and caves. Medieval villages such as Galtellì developed on elevated sites above the river and feature churches and palaces linked to the Giudicati period. The river appears in Sardinian literature and folk song, and was depicted by 19th and 20th century artists who traveled through Barbagia and the Gulf of Orosei coast. Local traditions tied to transhumant shepherding and olive cultivation reflect centuries of human interaction with the Cedrino landscape.
Communities along the Cedrino rely on the river for irrigation of orchards, olive groves, and cereal fields; small-scale hydroelectric installations and water diversions exist in the upper basin. Road and rail corridors linking Nuoro to coastal towns cross the valley via bridges and causeways, and local waterworks provide municipal supply for towns such as Orosei and Galtellì. Traditional uses include fishing and pastoral watering points; contemporary infrastructure includes flood-control embankments, levees, and gauging stations maintained by regional authorities of Sardegna.
The Cedrino faces challenges from seasonal drought intensified by climate change, agricultural abstraction, erosion from deforested slopes, and tourism pressure on coastal dunes near Cala Liberotto. Conservation initiatives involve regional protected-area planning tied to the Gennargentu National Park buffer zones and Natura 2000 sites that include habitats in the Gulf of Orosei. Restoration projects aim to improve riparian vegetation, groundwater recharge through managed aquifer recharge, and sustainable water management coordinated with provincial agencies. Balancing traditional livelihoods, infrastructure demands, and biodiversity conservation remains a priority for stakeholders including municipal councils of Nuoro Province and environmental NGOs active in Sardinia.