What is Environmental Sensitivity Index (ESI)? Definition

environmental sensitivity index definition

What is Environmental Sensitivity Index (ESI)? Definition

A method to map coastal resources and habitats based on their vulnerability to oil spills or other environmental hazards, providing a standardized, readily accessible framework for decision-making. This classification system integrates data on shoreline type, biological resources, and human-use features. As an example, a marsh with high biodiversity and slow recovery rates following a disturbance would receive a higher ranking than a rocky shoreline with minimal biological activity.

The value of this approach lies in its ability to facilitate rapid and informed responses during environmental emergencies. It allows response teams to prioritize protection efforts for the most vulnerable areas, optimizing the allocation of resources and minimizing environmental damage. Historically, these mapping systems were developed in response to major oil spills to aid in preparedness and response planning, evolving over time to incorporate a wider range of environmental sensitivities and threats.

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