Nature Based Solutions - Implementation Models Database

Pioneer Case


A short description of the NBS project

The reintroduction of lost ground microorganisms is a strategy strongly recognized as effective to promote the restoration of vegetation cover. Arbuscular mycorrhizal fungi (MA) represent an important component which is commonly lost as a direct result of the activities of roads and railways constructions. The main objective was the implementation of a more efficient soil erosion corrective revegetation measure in construction sites. The mycorrhizae fungi is specially recommended in degraded or poor grounds, or in those areas with restrictive weather conditions: aridity, salinity, scarce or torrential rains. Firstly, mycorrhizaes favour plants rooting. Secondly the ground retention prevents landslides and in third place the mycorrhizae favour the continuity of the establishment of the vegetative cover with minimum contributions or no additional fertilizer and water.

NBS Implementation context
Location SPAIN, Valladolid
Latitude 41.374837
Longitude -5.138790
Status Project delivered
Dates 2013.0
Description of the NBS
NBS Scale neighbourhood
NBS Impacts scale regional
Urban density/ Soil consumption low (suburb at the limit with rural areas, etc.)
Combined with other(s) environmental friendly solution(s)?
if other
NBS Typology
Open the NBS Solution Explorer
NBS Uban Challenges
Climate Issues Climate mitigation
Climate adaptation
Other 0;
Urban water management and quality Urban water management and quality
Flood management
Other 1
Air Quality Air quality at district/city scale
Air quality locally
Other 0
Urban Space and Biodiversity Biodiversity
Urban space design
Urban space management
Other 0;
Urban Regeneration and Soil Air quality at district/city scale
Other 0
Resource efficiency Food, energy and water
Raw materials
Other 0;
Public health and well-being Acustic
Quality of life
Other 1;
Environmental justice and social cohesion Environmental Justice: Recognition
Environmental Justice: Procedural Justice
Environmental Justice: Distributional Justice
Environmental Justice: Capabilities
Environmental Justice: Responsibility
Social Cohesion
Other 0;
Urban planning and governance Urban planning and form
Governance in planning
Other 0;
People Security Control of crimes
Control of extraordinary events
Other 0;
Green economy Circular economy
Bioeconomy activities
Direct economic value of NBS
Other 0;
Stakeholder and Governance
Who Started this initiative? A private stakeholder
Contracting Authority Public works Ministry
Project manager (leader and main partners): entities names, and know-how involved Leader: Acciona Construcción (civil engineering works) Main partners: Acciona I+d+i: Technology & innovation division & ADIF: manager of the cut slope plots for the tests
Who (else) was involved in the project ? (Inhabitants, local association, etc.) Acciona Construcción: project manager ADIF: Owners, co-owners of railway infrastructure Public works Ministry : Client
More detail on the process and the role of the different stakeholders (How did it happen?) The ADIF (High-speed railway lines manager company in Spain), in charge of managing a large part of the investment in rail infrastructures and of managing the high-speed network entrusted to its organisation, they offered their work sites to analyse the fuctionality of mycorrhizae amendments in slopes.
OPTIONAL Considering the actual impacts, who are the primary beneficiaries of the project. Construction companies Owners of civil infrastructures City Halls and in general all the citizens
Cluster Governance Model Description
cluster1_traditional_public_administrationParticipatory_planning_and_budgetingAdif, the Administrator of Railway Infrastructures, is a state-owned company that answers to the Public works ministry. This company has voluntary sustainable commitments contributing as much as possible to the preservation of the environment and 1.
Global Estimated cost of the project 20k€ - 50k€
Cluster cluster4_public_private
FM Private Finance Initiative (PFI)
Description of the financing mechanism Companies that relie on innovation to achieve more resilient and sustainable infrastructures .
Business Model
Class Type Description
TechnologicalSubstitute with renewables and natural processesAcciona Construcción wanted to test a corrective green solution based on natural solutions to solve erosion problems generated during their construction activities
Temporal Factor
Expected time for the NBS to be fully effective after its implementation short (immediately to few months)
Expected life time of the intervention more than 30
Already feedbacks on the project? In case, the project has already been adapted to new requisites, please explain the modifications brought
Success and limiting factors
Process Enablers
Class Subclass Type Description
Knowledge_driversGeneration_of_evidenceResearch_on_benefitsAcciona Construcción wanted to test a corrective green solution based on natural solutions and at the same time to test a better cost-eficiency solution to solve the erosion problems generated during their construction activities
Process Inhibitors
Class Subclass Type Description
Knowledge_barriersUncertaintyPerformance_unknowLooking for solutions with low economic impact on lower interest elements, to balance the costs of interventions with environmental value.
What makes this project a pioneer?
Field The_implementation
Brief description of the innovativeness Applied innovative technologies in the field of infrastructures, to improve their sustainability.
Has the project received a prize, an award?
Has the project received a media coverage? (in reviews, in press, etc.)
IM Keywords
  • mycorrhizal fungi

  • soil erosion

"mycorrhizal application fungi for landscape" Acciona Infrastructuras, Technology & Innovation Division, 2013