SCOPE 5 - Environmental Impact Assessment

List of Figures
   
1.1 Conceptual framework for assessing environmental changes. The reference condition is the 'without-action' condition and, because of naturally occurring changes, is not necessarily the present condition. The downward slope of the curves is for illustration only: an upward trend may occur in some cases.
2.1 EIA as an integral part of the planning and decision-making process
2.2 The consideration of alternatives to achieve a goal; an iterative procedure
3.1 Detailed EIA procedure: an expansion of Step 6A in Figure 2.1 (Dooley, 1978)  
4.1 Example of a flow-chart used for impact identification (Sorensen, 1971)
4.2 Instruction for using the Leopold Matrix (Leopold et al., 1971)
4.3 Example of the overlay method as applied to the selection of a corridor for an electrical transmission line. The four parts of the figure represent relative impacts (indicated by the intensity of shading) for three separate impact indicators (a, b, c) and for a composite of eight indicators (d). The solid lines are jurisdictional boundaries (Dooley and Newkirk, 1976)
4.4 Examples of environmental value functions: (a) terrestrial carrying capacity for browsers and grazers; (b) dissolved oxygen (Dee et al. , 1972)
5.1 Typical forms of relationships between action and impact.
5.2 Relationships between tables of system, action, and impact variables.
5.3 Relationships among levels of decision-making, form of displaying information in the information package, and comparative depth of explanation vs. ease of interpretation of each form (from Gross et al. , 1973)
6.1 Socio-economic data-collection methods (after Whyte, 1977)
A1.1 Example of aliasing. In an analysis of observations taken at the times represented by the small open circles, dissimilar wavelengths cannot be distinguished
A2.1 The EIA procedure in Kawasaki City
A2.2 The environmental information system in Kawasaki City
A2.3 The structure of the United Kingdom approach to environmental appraisal (PADC, 1976)
A2.4 Schematic of the United States Environmental Impact Assessment procedure. Open triangles represent decision nodes. EIS, Environmental Impact Statement; CEQ, Council on Environmental Quality
A5.1 Sample predictions from the James Bay model for two alternative management scenarios. All predicted values are on a relative scale (Walters,1975)
A5.2

Schematic representation of proposed network design for monitoring the environmental impact of the La Grande development (Marsan, 1977)

 

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The electronic version of this publication has been prepared at
the M S Swaminathan Research Foundation, Chennai, India.