Property:Lessons learnt
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This is a property of type Text
W
That by looking at our existing maintenance works; we can promote best practice by delivering cost saving initiatives that have a wider benefit on river ecology with minimal cost implications. +
L
The CRT technique employed at Lippenbroek has potential applicability for habitat creation along other heavily developed estuaries. It furthermore represents a technique which can significantly reduce the tidal prism of a site, without compromising the development of a range of intertidal habitats, thus minimising potential negative effects on small estuary systems. The technique also enables the establishment of intertidal habitats at lower elevations in the tidal frame than those of intertidal systems fronting a defence, and would thus be of potential use in areas where land levels behind a defence are relatively low compared to fronting levels. However, longer flood duration and low-turbidity stages may lead to higher accretion rates than in adjacent natural systems(ABPmer, 2008). +
M
The River Pant has low flow issues during the summer, and is also a conduit for the Ely-Ouse transfer system, these must be protected at all costs. Therefore any connection to the floodplain must take this into account. Also, due to the constraints of having to ensure that the landowner can keep access to the surrounding fields we have had to go for a formal connection, in an ideal world we would go for a more informal connection that would offer additional benefits to fish fry and avoid the need for an eel screen to prevent eels from being deposited in the new back channel. +
R
The River Restoration Centre conducted an evaluation of this and other Cumbria River Restoration Strategy projects during 2015 and the report of their findings is available on the RRC website. +
The River Restoration Centre conducted an evaluation of this and other Cumbria River Restoration Strategy projects during 2015 and the report of their findings is available on the RRC website. +
The aim of the project Renaturalize was to evaluate if techniques of river restoration widely used in the United Kingdom were effective in the River Mangaraí located in the Brazilian Atlantic Forest. The ReNaturalize project was developed to apply and evaluate effectiveness of the use of logs and wood branches within the river channel in a tropical environment. The evaluation of the efficacy of the British method in a tropical environment was based on assessments of water quality, sediment and aquatic biota, as well as achievements of work with the local community.
- In general, installed wood structures had good durability. The anchoring techniques that best fit the hydrodynamics of the River Mangaraí were the "rigid" type with anchorage at the margin. "D" structures have shown rapid benefits for insect colonization and habitat creation for fish, but they had a short life. To play the role of sediment retention and habitat creation, so-called 'dragon tooth' structures have proven to be more effective. The flexible structures served as a shelter for fish and are more durable. The trunks anchored to the margins presented an excellent function of sediment retention and increased riverbed heterogeneity and differential flow creation.
- Fixed Point photographs are a very useful tool to present the results of the Renaturalize project. We suggest that in future projects these photographs be made in panoramic mode to perfect the technique.
- Although this project focused on environmental quality parameters, the results of the ReNaturalize project have shown that the integration, environmental education and income generation provided to the local community generated socio-environmental benefits. This provides gains for both biodiversity and the surrounding community. From the implementation of the project, it was understood that local communities had a misconception about the presence of wood logs within rivers. Although environmental education activities were not foreseen within this project, their development was extremely important for the local community to change this conception. In addition, the training of the work team sought to develop notions of management of LW in rivers.
M
The banks remained fairly stable where the boards had been removed. Any slumping or collapse will be left to allow the formation of natural features. Future planting of emergent vegetation types may be needed to enhance the marginal habitat. +
I
The big number of problems and open questions is beyond the personnel and financial capacity of Ukrainian state institutions. International cooperation will help to gain or exchange best practices in river restoration but it is also clear that a much smaller subbasin of the river had to be selected to start with. +
U
The biggest success has been the meaningful partnership developed with all landowners and farmers who have worked with us over the past 10 years. A relationship of trust and respect has been built through collaboration, ensuring they are treated as a true partner, can input into design, oversee construction, and take ownership of the results. The momentum of project delivery is increasing, and this can be attributed to the commitment to building and maintaining these relationships.
Funding for projects such as this can be incredibly hard to come by and the partnerships commitment to showcasing our work and communicating passionately about our objectives has resulted in significant income through private donations and crowd funders. A community far wider than Ullswater feel invested in our work.
The partnership has also worked hard to improve local skills and education opportunities. Through the Riverlands project we have hosted 3 apprentices over the last 6 years, galvanising a new generation of river champions. We have worked with local contractors for all projects, providing a learning space for local construction companies to diversify into natural flood management and habitat works. The volume of work has supported numerous small contractors who are now as much a partner to the project as anyone. They have developed a deep understanding of how important it is to protect this landscape and the methods they can use to enhance it. +
C
The cleanliness of our rivers is down to human education. By being highly visible in the events we undertake, we show people how pristine their rivers can be. When we leave areas clean, this discourages people from using the waterways as a convenient rubbish dump. Cleanliness breeds cleanliness. +
B
The colaboration between citizenship and scientifist can be possible and many habitats can be protected and conserved for diversity. +
S
The collaborative working went very well, especially with building in a monitoring plan through collaboration with other Catchment Partners.
The project gave some good case studies that can be used in conjunction with other angling clubs to get them delivering some of the same types of projects on other reaches in the catchment. +
B
The conecction between ONG and farmers can be possible, the management of the sources is essential for the ecosystem maintenance. +
S
The design of the new two-stage channel (incorporating a low flow channel) has increased water depth during low flows. In combination with a greater variety of channel widths and depths, this has increased habitat diversity which should benefit fish populations.
Within a year of the project works, native vegetation had begun to establish on the banks. This will provide shelter and feeding areas for fish during high flows and will increase habitat for invertebrate species such as dragonflies, beetles and fly species.
The newly created backwater will provide refuge for juveile fish, create warmer conditions and shallow refugia as nursey areas for young amphibians and invertebrates which live in still water. The introduction of woody material provides shelter during low flows and marginal shelves will become vegetated and provide areas for feeding and resting.
Out of channel habitat enhancement of floodplain woodland and additional lateral connectivity is expected to lead to improvements in the biodiversity value of the landscape (wet meadow habitats are nationally rare) & reduce flood risk downstream by increasing capacity for floodwaters.
The public have been consulted and kept informed of progress throughout the project, building local support for river restoration and its associated benefits. +
B
The efforts in restoration of local wildlife and vegetation have been effective in this zone and the image of industrial zone is not so remarkable +
R
The establishment of flow deflectors and the laying of rocks, blocks and uprooted trees in areas with previously low hydromorphological variation, have great potential for the improvement of the aquatic environment and habitats - in this example, fish production increased in the rehabilitated areas.
Higher densities of both “yearlings” and older juvenile fish were found in the habitat-improved areas than were found in the control sites.
The flow deflectors led to a better spatial distribution of spawning opportunities for lake trout in the upper part of the Teigdal river.
It could have been advantageous to place more blocks and stones in the riverbed to increase the extent of the measures and thus the quality of the habitat in the habitat-poor areas. An analysis of the total available area in the three habitat-improved areas shows that only 2% of this area had been improved. An increase would further enhance the habitat and lead to a higher fish production. +
D
The following challenges were managed during the project;
•Limited time to design and construct the scheme.
•Varying support for the scheme amongst residents and general lack of understanding of how surface water contributes to flooding and poor water quality.
•Safety concerns – residents and safety audit helped refine rain garden design. +
B
The function of aquatic birds and local vegetation in this environment is very important, they stablish a ecological balance and they can provide a beautiful site for people. Furthermore, the installation of ecological rice has improved the enviromental flows. +
The function of aquatic birds and local vegetation in this environment is very important, they stablish a ecological balance and they can provide a beautiful place to visit. Furthermore, the installation of ecological rice has improved the enviromental flows. +
A
The implementation of this scheme on Welsh Government Woodland Estate has shown that there are high value gains possible at low cost inputs which can be imnplemented alongside current Forest management techniques. These can yield multiple benefits and studying these allows us to put forward a case for spreading this work and ethos across the wider Woodland Estate with potential for large scale projects. The multiple benefits are closely aligned with NRW's wider Corporate and Business plans and better ways of working which look to generate positive outcomes through nature based solutions giving positive benefits across a broad spectrum of habitats, species and communities. +