Case study:ReNaturalize

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Location: 20° 10' 45.39" S, 40° 30' 6.67" W

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Project overview

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Status	In progress
Project web site	http://www.aplysia.com.br/renaturalize/
Themes	Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Water quality
Country	Brazil
Main contact forename	Carolina
Main contact surname	Pinto
Main contact user ID	User:Carolfp10
Contact organisation	Aplysia
Contact organisation web site	http://www.aplysia.com.br/site/en/
Partner organisations	FAPES, FINEP
Parent multi-site project
This is a parent project encompassing the following projects	No

Project ReNaturalize River Mangaraí ES Brazil

Project summary

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The project ReNaturalize consists on the installation of large wood (LWD) in the River Mangaraí, ES-Brazil. It is an innovative initiative of Aplysia Environmental Solutions. In this project a British technique of river restoration was used where tree trunks are installed on the riverbed as a form of river restoration. The aim is to restore natural river processes that can support healthier and more biodiverse aquatic environments. In other words, the project aims to restore the natural function of the river, that happens when riparian vegetation grows wirth trees and branches falling naturally in the river, creating healthier environments in a sustainable manner. We also seek the integration with local communities. To integrate the community's goals with the project objectives aligning interests.

The installations included techniques listed below: - 'D' structures; - Flexible anchoring large wood; - Rigid anchoring; - 'Staking';

Monitoring surveys and results

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Monitoring for the project is in progress. The aim is to have intensive monitoring as to understand the effectiveness of wood in a tropical environment including: water quality, sediment quality, aquatic biota (fish and macroinvertebrates), hydrology, hydromorfology and public perception during the 2 years of the project. Results will be shared once the restoration project is completed.

Lessons learnt

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Image gallery

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Installation of flexible structure

Faggot bundles

D structure

Steel cable anchor

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district East- Atlantic River basin Santa Maria da Vitória Subcatchment River name Mangaraí Area category 100 - 1000 km² Area (km2) 174174 km² <br />17,400 ha <br /> Maximum altitude category 500 - 1000 m Maximum altitude (m) Dominant geology Ecoregion Dominant land cover Woodland, Rough unimproved grassland/pasture, Plantation forestry, Irrigated land Waterbody ID Site Edit site Name WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Single channel, Over-widened, shallow Reference morphology Desired post project morphology Heavily modified water body No National/international site designation Local/regional site designations Protected species present No Invasive species present Yes Species of interest Dominant hydrology Groundwater Dominant substrate Sand River corridor land use Broadleaf/mixed woodland (semi natural), Rough unimproved grassland/pasture Average bankfull channel width category 10 - 50 m Average bankfull channel width (m) Average bankfull channel depth category Less than 0.5 m Average bankfull channel depth (m) Mean discharge category 1 - 10 m³/s Mean annual discharge (m3/s) Average channel gradient category Average channel gradient Average unit stream power (W/m2) 2 2 W/m² <br /> Project background Edit project background Reach length directly affected (m) 200200 m <br />0.2 km <br />20,000 cm <br /> Project started 2014/11/20 Works started Works completed Project completed Total cost category 100 - 500 k€ Total cost (k€) Benefit to cost ratio Funding sources FINEP, FAPES, MCTI Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design 1 - 10 k€ Aplysia, CESAN, AGERH Carolina Pinto Stakeholder engagement and communication 1 - 10 k€ Works and works supervision 10 - 50 k€ Aplysia Carolina Pinto Post-project management and maintenance 1 - 10 k€ Carolina Pinto Monitoring 10 - 50 k€ Aplysia Carolina Pinto Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Riparian development, Drinking water storage and supply Hydromorphology Silting, In-stream Habitat Heterogeneity Biology Biodiversity loss Physico-chemical Suspended Solids, Turbidity Other reasons for the project High levels of suspended sediment Measures Edit Measures Structural measures Bank/bed modifications Introducing large woody debris Floodplain / River corridor Introducing large woody debris Planform / Channel pattern Introducing large woody debris Other Non-structural measures Management interventions Social measures (incl. engagement) Community Education Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Physico-chemical quality elements Edit Physico-chemical quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Any other monitoring, e.g. social, economic Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information