]> 2026-04-14T03:40:58+00:00 Case study:Remeandering of the Mardereau stream at Sorigny 500 en 27 5 rex r7 mardereau vbat.pdf Case study description by ONEMA (French National Agency for Water and Aquatic Environments) (in French) Approved Riverbank revegetation Introducing stones Yes Yes No No No Invertebrates,Yes,Yes,No,No,No, Phytoplankton,No,Yes,No,No,No, Invertebrates Phytoplankton No Re-meandering Syndicat intercommunal d’aménagement de la vallée de l’Indre (SAVI) Western Plains 100 % Syndicat intercommunal d’aménagement de la vallée de l’Indre No No Yes true 1.DSC00469.JPG 2.PICT7654.JPG 3.PICT7624.JPG 4.DSC00991.JPG The Mardereau stream before restoration, in January 2009. The Mardereau stream after restoration, in April 2009. Students participating in plantation of ripisylve, in February 2009. The Mardereau stream in August 2009, four months after restoration. Riparian vegetation has recolonized the riverbanks. No 100 % Syndicat intercommunal d’aménagement de la vallée de l’Indre 47.241121,0.69662400000004 David Syndicat intercommunal d’aménagement de la vallée de l’Indre (SAVI) Laurendeau Riverbank revegetation, Introducing stones,,Re-meandering, ,,Engagement with schools, Student Education,,Local support, Yes No No No Public opinion,No,Yes,No,No,No, No Public opinion 5000 Complete The Mardereau stream is a small tributary of the Indre river. The catchment is dominated by crops and the intensification of agricultural pressures since 1941 has resulted in the creation of an extensive drainage network of and the disappearance of wetland habitats. Soil sealing in the watershed is increasing due to the proximity of the town of Tours. As a result the flood risk management issue is very relevant. At Sorigny the Mardereau was straightened, dredged and, in the upstream part, cemented. Under the leadership of the Syndicat Intercommunal d’Aménagement de la Vallée de l’Indre (SAVI), a pilot restoration project has been realized. Works carried out included remeandering and plantation of riparian vegetation, together with some local biongeneering measures. Remeandering of the Mardereau stream at Sorigny remeandering of the mardereau stream at sorigny No 230 Loire Loire-Bretagne Mardereau mardereau Sorigny sorigny Engagement with schools Student Education 8.5 Mardereau Flood risk management Habitat and biodiversity Hydromorphology Social benefits Water quality 19 FRGR2158 Local support 19 100 % Syndicat intercommunal d’aménagement de la vallée de l’Indre 2009-03-31Z 2454921.5 2009-03-01Z 2454891.5 2013-01-10T17:39:08Z 2456303.2355093 2017-06-06T08:39:12Z 2457910.8605556 Remeandering of the Mardereau stream at Sorigny 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Remeandering of the Mardereau stream at Sorigny]] [[Subcatchment title::Mardereau]] Remeandering of the Mardereau stream at Sorigny# QUERYbad44ae107c605d6d61f3a859372f343 Case study:Remeandering of the Mardereau stream 500 en Remeandering of the Mardereau stream REDI 102 en REDI