Article | REF: GE1024 V1

Ecodesign of marine infrastructure: from concept to practice.

Authors: Sylvain PIOCH, Jean-Claude SOUCHE

Publication date: January 10, 2023

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ABSTRACT

Inspired from Nature Based Solutions, eco-design of maritime infrastructures is one of the pragmatics, technically and economically, responses to achieve legal mitigation objectives, adapted to each environment and aesthetically concerns to the natural underwater landscapes. This article presents the bases for the realization of eco-designed maritime infrastructures functional and efficient in terms of civil engineering and ecology, to enhance its integration into coastal or marine ecosystems. The original methodological approach, for the realization of eco-designed projects, is supported by concrete examples. The development of maritime territories is depicted from the perspective of ecological transition and additional biological conservation targets supported by human infrastructures.

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AUTHORS

  • Sylvain PIOCH: PhD in Geography and Planning, Senior Lecturer, Ecological Engineer (AFIE), EA Laboratoire de Géographie et d'Aménagement de Montpellier (LAGAM), Université Paul Valéry Montpellier 3, France

  • Jean-Claude SOUCHE: Doctorate in mechanical and civil engineering, civil and marine engineer - Mechanics and Civil Engineering Laboratory (LMGC), University of Montpellier, DMS, IMT Mines Alès, France

 INTRODUCTION

The very serious loss of global biodiversity is concomitant with the Anthropocene, the new geological era in which mankind has become the main actor in the pressures on ecosystems. In this respect, the latest IPBES report makes a dramatic assessment of the state of biodiversity in the 200 years since the start of the industrial era: mankind has altered 75% of the land, 66% of the oceans and destroyed over 85% of wetlands. Consequently, our future on this unique planet will depend on our ability to immediately halt these impacts. Faced with this dramatic and anxiety-provoking situation for the younger generations, mankind needs to halt, or at least significantly slow down, the well-known causes of this predicted catastrophe: (1) land artificialisation and use, (2) resource exploitation (fishing, forestry, etc.), (3) climate change, (4) pollution (plastics at sea, etc.) and (5) invasive species in ecosystems. .

Nota

IPBES is the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services.

Artificialization and land use resulting from regional planning is the major problem. In addition to the intensive agricultural model, it is urban planning choices and their consequences that are penalizing us, as they generate an almost irreversible artificialization of natural environments (urban sprawl, port areas, industrial zones and transport infrastructures). Coastal areas are paying a high price for this rampant, uncontrolled development. Indeed, eight of the world's ten megacities are located on the coast, and the surface area of seascapes impacted by these developments is estimated at between 1 and 3.4 million km 2 in 2018, with a 50-70% increase forecast between now and 2028. .

And in France? Between 2000 and 2006, the construction of...

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Ecodesign of marine structures: from theory to applied examples