Geography

"Using the right word, the right idea, the right concept, with the most commonly accepted definition, or even better, with the best accepted and understood definition, can sometimes be a feat...”

Patrick Triplet

> With this quote, we wish to pay tribute to the colosal work of this biologist, and doctor of ecology whose great oeuvre, Dictionnaire encyclopédique de la diversité biologique et de la conservation de la nature (The Encyclopaedic Dictionary of Biological Diversity and Nature Conservation) ─ compiled over the course of more than ten years ─ is the basis of many of the definitions found in this glossary. Indeed, it is by using a language with precise words and clearly defined concepts that everyone and anyone can approach and understand fields of study that may not necessarily be within their own expertise.

This glossary of over 6,000 definitions, written in French with corresponding English translations, is here to help you. It covers the complementary fields of Geography, Ecology, and Economics, without forgetting a small detour into the world of Finance, which of course regulates a large part of our existence.

Travelling from one definition to another, this glossary invites you to explore the rich world of conservation and to understand its mechanisms and challenges.

We wish you all : "Happy reading and a safe journey through our world".

Bruit

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Glossaries

Term Definition
Bruit

Sensation auditive désagréable et gênante. Le bruit est considéré comme un facteur de pollution.
L'échelle du bruit s'étend de 0 décibel (dB) (seuil d'audibilité) à 130 dB (seuil de la douleur).

  • La plupart des sons de la vie courante sont compris entre 30 et 90 dB.
  • On trouve des niveaux supérieurs à 90 dB essentiellement dans la vie professionnelle (industrie, armée, artisanat...) et dans certaines activités de loisirs (chasse, musique, sports mécaniques).
  • Les discothèques et salles de concert ont, quant à elles, un niveau sonore maximal autorisé de 105 dB.
  • Certaines sources (avions, fusées, canons) émettent des niveaux supérieurs à 130 dB et pouvant aller jusqu'à 200 dB.

Échelle du bruitÉchelle du bruit

Équivalent étranger : Noise.