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Nature and Science

Measuring Worldwide Resource Sustainability Related to Socio-economic Scenarios under Ecological Footprint Model

Yen-Lan Liu
(Department of Geography, National Taiwan University, Taipei, Taiwan 106, ROC)
Abstract :

This paper describes the questions on the consequences of the assumptions about resource
sustainability and  economic growth  and whether  sustainability and economic growth  foreclose each
other. Specifically, it examines four questions by:  (1) Identifying  the main factors in earth  resource
consumption  in  the past 40 years;  (2) Finding relationships among person’s nutrition demands, food
Ecological Footprint (EF) and income; (3)  Formulating functional equations for resource surplus/overdraft periods; (4) Designing Socio-Economic Resource (SER) Matrix: A model to measure local (or national) trending toward sustainability/unsustainability. The main findings of this paper are: (1) EF=f (population, GDP). The results of our analysis are as follows: EF1961-1978=0.331519701X+0.5; EF1979-1999=0.5742425961X-1,  X=  population (billion); (2)  Dietary energy supply (DES,
kcal/person/day) and Food EF (the sum of arable and livestock EF) based on 1996 data. These results
display an exponential growth model:  EF=70.584e 0.001x ;  (3)  GDP  (per capita) and DES exhibit a
logistic growth model, i.e., the logistic function EF=367.86 and Ln(x) - 274.48. [Nature and Science.
2004;2(3):19-29].

Keywords :
ecological footprint (EF); socio-economic resource (SER); sustainability matrix; resource consumption; gross domestic product (GDP); dietary energy supply (DES)

Date Deposited : 11 Jan 2011 12:57

Last Modified : 12 Jan 2011 10:04

Official URL: http://www.sciencepub.org/nature/0101/

Volume 2, Number 3, October 2004 , ISSN 1545-0740

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