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EIA METHODOLOGY IMPACT IDENTIFICATION METHODS

  CHECKLISTS   MATRICES Leopold matrix   NETWORKS Vic Falls National Park case   MAP OVERLAYS & GEOGRAPHIC INFORMATION SYSTEMS

GIS as a powerful tool for cumulative effects assessment   COMPUTER EXPERT SYSTEMS   PROFESSIONAL EXPERIENCE

The best way to go: combination of 2 different techniques tailor-made for the particular situation

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OVERFLY : “flight of the angels”

OVERROOF

VICTORIA FALLS National Park EIA NETWORK (Zimbabwe/Zambia)

The falls were “discovered” by D. Livingstone in mid XIX

SETTING UP THE SCENE

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NETWORK: impact linkages leading to changes in quality of life, wildlife and tourism Victoria Falls National Park (Zimbabwe-Zambia)

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CHOICE OF EIA METHOD DEPENDS ON:

  Type and size of the proposal   Type of alternatives being assessed   Nature of the likely impacts

  Nature of the EIA methods Direct, Indirect effects, Cumulative (synergistic) impacts

  Resources available Cost, info, time, personnel

  Nature of the public involvement

  Experience of the proponent with the project type, size   Procedural/administrative requirements

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What is an IMPACT? Spatial/temporal change in environmental parameter over a specified period and within a defined area, resulting from a particular activity compared with the situation which would have occurred had the activity not been initiated

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Site comparison matrix for a quarry

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IMPACTS OF LAND USES AND CHANGES ON SELECTED HYDROLOGICAL PARAMETERS

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Environmental impact matrix without mitigation