Mounds are a very old strategy to make use of natural processes for proving flood protection. They enable settlement and livestock farming in areas that are affected by water/sea-level rises

- mounds represent higher ground above the water level during flood events

- mounds are connected with dikes to guarantee access to the dike

- mounds can be natural or manmade hills

- refuge for farm animals (cows, horses) and wild animals (contribution to nature conservation)

Basic information

Type: 
Retrofitting + Creation

Performance

Evapotranspiration none none
Shading none none
Reflection (Albedo) none
Water Conveyance none
Water Infiltration 1
Water Retention 2
Water Storage none
Water Reuse none
Water Filtering none
Water Bio-remediation none
Deposition none
Bio-filtration none
Habitat Provision 1
Connectivity 1
Beauty / Appearance 1
Usability / Functionality 2
Social Interaction 1
Role of Nature / Mode of Action: 
Sedimentation is a natural process that leads to increasing, upward “growing” soils. Mounds make use of this natural process.
Technical & Design Parameters: 
- fast rotting mats (coconut fibre, jute) - simple construction - fast installation
Conditions for Implementation: 
Time is a condition for success, mounds can be initiated through construction but can only develop over decades.
Benefits & Limitations: 
- protection against erosion - habitat for wildlife - spatially concentrated flood protection has a potential as an alternative to costly dike construction

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 730052 Topic: SCC-2-2016-2017: Smart Cities and Communities Nature based solutions