Léa Tardieu

French National Institute for Agriculture, Food, and Environment (INRAE) | INRAE · Département Sciences pour l'Action et le Développement (SAD)

Urban green spaces provide cultural ecosystem services, and urban policies typically aim to enhance these services by targeting new investments in deprived areas. The implementation of urban greening policies is one way to reduce inequalities in well-being, for example by targeting areas where increased access to green spaces will benefit citizens...

Natural infrastructure such as parks, forests, street trees, green roofs, and coastal vegetation is central to sustainable urban management. Despite recent progress, it remains challenging for urban decision-makers to incorporate the benefits of natural infrastructure into urban design and planning. Here, we present an approach to support the green...

Urban sprawl impacts are critical in the evaluation of planning decisions and often monitored by indicators of soil sealing. In France, these indicators are required by law to be reported in environmental assessments of planning documents. Although monitoring of soil sealing is important to limit environmental impacts, focusing on this sole dimensi...

It is increasingly recognised that the good quality of life of city dwellers depends on the provision of a variety of urban ecosystem services (UES) within cities. However, soil sealing, associated with urbanisation and densification policies, affects soil multifunctionality and compromises the supply of future UES delivered both by public and priv...

Light pollution has significantly increased in recent years, in concert with urban sprawl. Light pollution consequences for nocturnal wildlife, human health, and energy consumption are numerous but are poorly tackled in urban policies. The regulation and mitigation of light pollution is possible, but requires an important shift in the lighting para...

Reducing travel time emerged as the most substantial benefit justifying transportation projects in cost-benefit analyses, overshadowing environmental costs linked to infrastructures. Although environmental externalities and associated costs are increasingly considered, direct inclusion of additional factors such as environmental preferences in the...

To ensure soil preservation, it is essential to incorporate the soil's ability to provide ecosystem services into the spatial planning process. For well-informed planning decisions, stakeholders need spatially explicit information on the state of the soils and the functions they fulfil, with sufficient spatial resolution and quantified uncertainty....

Understanding the cooling service provided by vegetation in cities is important to inform urban policy and planning. However, the performance of decision-support tools estimating heat mitigation for urban greening strategies has not been evaluated systematically. Here, we further develop a calibration algorithm and evaluate the performance of the u...

Understanding the cooling service provided by vegetation in cities is important to inform urban policy and planning. However, the performance of decision-support tools estimating heat mitigation for urban greening strategies is not systematically evaluated. Here, we develop a calibration algorithm and evaluate the performance of the Urban Cooling m...

Cities across Mediterranean Europe face common climatic threats. They are highly vulnerable and very likely to suffer losses and damages due to heat waves, droughts, wildfires, landslides, and extreme coastal events. To this date, however, there is no systematic understanding of how cities in Mediterranean Europe are preparing to adapt to these imp...

Ce manuel offre une introduction aux grandes théories de l’économie urbaine et de l‘environnement, avec une attention portée sur les enjeux environnementaux de la ville et de l’immobilier. Il aborde les politiques urbaines au travers des aménagements et des infrastructures de transport, par les théories de la localisation, ainsi que par les externa...

Defining and measuring progress in adaptation are important questions for climate adaptation science, policy, and practice. Here, we assess the progress of urban adaptation planning in 327 European cities between 2005 and 2020 using three ‘ADAptation plan Quality Assessment’ indices, called ADAQA-1/ 2/ 3, that combine six plan quality principles. H...

Les multiples avantages de l’exposition aux espaces verts urbains (EVU) étant de mieux en mieux reconnus, les politiques de renaturation sont devenues une composante importante de l’agenda politique urbain. La plupart des stratégies de ciblage des futurs EVU sont fondées sur la recherche d’une répartition égale des espaces verts urbains entre les r...

Incorporating nature-based recreation into urban planning analyses requires understanding the accessibility, quality, and demand for urban greenspace (UGS) across a city. Here, we present a novel tool that lowers the barriers to such information by (i) providing a spatially-explicit assessment of recreational UGS supply and demand; (ii) differentia...

Cette évaluation de la prise en compte des services écosystémiques dans les décisions d’aménagement urbain s’inscrit dans le cadre global de l’Évaluation française des écosystèmes et des services écosystémiques (Efese). Elle vise à proposer à l’ensemble des acteurs de l’aménagement urbain une démarche d’évaluation sur laquelle s’appuyer pour intégr...

In Europe, regions in the Mediterranean area share common characteristics in terms of high sensitivity to climate change impacts. Does this translate into specificities regarding climate action that could arise from these Mediterranean characteristics? This paper sheds light on regional and local climate mitigation actions of the Mediterranean Euro...

Cities across the globe recognise their role in climate mitigation and are acting to reduce carbon emissions. Knowing whether cities set ambitious climate and energy targets is critical for determining their contribution towards the global 1.5 °C target, partly because it helps to identify areas where further action is necessary. This paper present...

Rapport EFESE - Phase 2, pilotée par le Commissariat Général au Développement Durable- La Documentation Française

Renaturation policies are playing an increasingly important role in urban planning strategies of major metropolitan areas as the multiple benefits from exposure to urban green spaces are increasingly acknowledged. However, in urban planning, it is usually implicitly assumed that the development of any type of urban green space will have the same ef...

Article paru dans The Conversation sur l'importance de prendre en compte la nature dans les projets d'aménagement urbain

The concept of ecosystem services (ES) remains underused in supporting practical decisions in conservation/development plans and programs. One of the most important factors explaining this non-consideration is the lack of spatial information describing the nature-society relationship in environmental and economic analyses. In this paper, we develop...

Les mesures compensatoires des atteintes à la biodiversité (MC) sont des actions assurant des gains écologiques au moins équivalents aux pertes subies à la suite d’un projet d’aménagement. La loi Biodiversité d’août 2016 rend plus coercitif le cadre des MC. Alors que 59,5 % du territoire français est dédié aux pratiques agricoles, les agriculteurs...

Biodiversity offsets (BO) are activities that provide measurable ecological gains that are equivalent to the ecological losses induced by development projects. The law on biodiversity voted in August 2016 introduces a more coercive framework of BO. Providedthat59,5%oftheFrenchtemtoryisdedicatedtoaghculturalactivities, farmers should become major pl...

This poster presents experiences obtained from the assessment of recreational services from forest ecosystems in France. The objective of this research is to provide quantitative estimates for The French national assessment of ecosystems and ecosystem services (EFESE) as well as establishing a basis for assessing the impact of changes in land use a...

Biodiversity Offsetting (BO) is aimed at achieving no net loss of biodiversity in the context of economic development. Through a choice experiment in northern France, we show that farmers have a clear preference for not signing up BO contracts. The contracts they accept may only be suitable for offsetting temporary impacts on already degraded areas...

In this chapter we highlight the tools for better accounting of natural capital in territorial decisions. The spatial dimension is central to the assessment of natural capital, to the flow of ecosystem goods and services and to the demand by beneficiaries, their location and socioeconomic context. Consequently, when considering investment projects,...

Publications on the modelling and mapping of ecosystem services (ESs) have increased exponentially in recent years. In this literature, a call for integrated environmental assessment is increasingly made, even if, in the ES context, the concept of integration remains fuzzy and can refer to different elements. First, this review paper attempts to cl...

In this chapter we show how the inclusion of ES in business decision-making can improve company management and performance. We also show how ES mapping leads to more optimal land management decisions. We then highlight particular challenges faced in mapping ES in the private sector and we present some examples from existing applications and case st...

In this chapter, I review the major interests and the challenges faced in the economic valuation of ecosystem services (ES) loss induced by transport infrastructure projects. First, infrastructure impacts on ES may be characterized for each ES and ecosystem types, including the characterization of the spatial extent of impacts and the magnitude of...

Natural areas contribute to human well-being in many ways. Among the ecosystem services provided by natural areas, recreational services appear increasingly valuable. The main objective of our study is to evaluate the recreation demand of the Sensitive Natural Areas (SNAs) in the Hérault Department (France). These areas are acquired to protect them...

The loss of Ecosystem Services (ES) associated with the direct and indirect impacts of infrastructure construction are poorly integrated into Environmental Impact Assessment (EIA) studies. In this paper, we attempt to broaden the scope of infrastructure project evaluation by incorporating ES loss as a new criterion for decision-making. This allows...

The destruction of natural habitats and the associated loss of Ecosystem Services (ES) are rarely jointly assessed and quantified in Environmental Impact Assessment (EIA). Based on a terrestrial transport infrastructure project, the objective of this paper is to quantify the potential loss of ES associated with direct and indirect impacts, and illu...

The purpose of this thesis is to broaden the assessment process of terrestrial transport infrastructure in the field of Ecosystem Services (ES), i.e., the benefits people derive from ecosystems. To achieve this, we first review the major challenges to integrate the ES approach into transport infrastructure decisions. This inclusion is only possible...

L'objectif de cette thèse est d’intégrer la notion de Services Écosystémiques (SE), i.e., les bénéfices que la société retire du fonctionnement des écosystèmes, dans le cadre des procédures d'évaluation des projets d'infrastructures de transports terrestres. Pour cela, nous commençons par mettre en lumière les différents défis associés à l'intégrat...

The purpose of this paper is to broaden the Terrestrial Transport Infrastructure (TTI) assessment process into the field of Ecosystem Services (ES), i.e., the benefits people derive from ecosystems. Taking into account ES in an ex ante assessment of public infrastructure projects is of critical importance for the improvement of transportation decis...