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1 June 2002 Biophysical energy analyses of non-market values of the Ebro Delta
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Abstract

Non-market values were estimated with energy analysis under four land cover scenarios in the Ebro Delta, Spain. The market value of agriculture, the primary use value, is compared. Conversion of the natural landscape to agricultural fields has resulted in a drop in total annual non-market value from $721 million in the pristine scenario to $11 million in the present scenario. The market value of the agricultural crops has risen over time, from $10 million to almost $52 million, contributing the major portion of the total value of the Delta. However, the rate of return has decreased from the pristine to the present delta, indicating that more energy is required to produce a smaller output. Energy analyses reveal that one form of value – non-market value – is being traded for another – market value.

Abbreviation:

  • EA = Energy Analysis

  • GNP = Gross National Product

  • FFE = Fossil Fuel Equivalents

  • GPP = Gross Primary Productivity

Lynette Cardoch and John W. Day Jr. "Biophysical energy analyses of non-market values of the Ebro Delta," Journal of Coastal Conservation 8(1), 87-96, (1 June 2002). https://doi.org/10.1652/1400-0350(2002)008[0087:BEAONV]2.0.CO;2
Received: 22 March 2001; Accepted: 8 January 2002; Published: 1 June 2002
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