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Titre du document / Document title

A modified method of ecological footprint calculation and its application

Auteur(s) / Author(s)

SHENG ZHAO (1) ; ZIZHEN LI (2) ; WENLONG LI (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) State key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000, CHINE
(2) Department of Mathematics, Lanzhou University, Lanzhou 730000, CHINE

Résumé / Abstract

As economic and ecological support systems become more interdependent, new disciplines are needed to bridge the gap between human and nature. Emergy created by H.T. Odum is a new method for evaluating natural capital and ecosystem services. The ecological footprint created by Wackernagel and Rees has been promoted as a policy and planning tool for sustainability. The aim of this paper is to show a modified form of ecological footprint calculation by combining emergy analysis with conventional ecological footprint form of calculations. Our new method starts from the energy flows of a system in calculating ecological footprint and carrying capacity. Through a study of the energy flows, and using the method of emergy analysis, the energy flows of a system are translated into corresponding biological productive units. To demonstrate the mechanics of this new method, we compared our calculations with that of an original calculation of ecological footprint of a regional case. We select Gansu province in western China, as an example for application of our study. In this case the same conclusions were drawn using both methods: that Gansu province runs an ecological deficit.

Revue / Journal Title

Ecological modelling    ISSN  0304-3800   CODEN ECMODT 

Source / Source

2005, vol. 185, no1, pp. 65-75 [11 page(s) (article)] (1 p.1/4)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Amsterdam, PAYS-BAS  (1975) (Revue)

Mots-clés anglais / English Keywords

Models

;

Carrying capacity

;

Ecology

;

Method

;

Mots-clés français / French Keywords

Modèle

;

Capacité limite

;

Ecologie

;

Méthode

;

Mots-clés espagnols / Spanish Keywords

Modelo

;

Capacidad límite

;

Ecología

;

Método

;

Mots-clés d'auteur / Author Keywords

Ecological footprint

;

Carrying capacity

;

Emergy

;

Localisation / Location

INIST-CNRS, Cote INIST : 15732, 35400012539996.0050

Nº notice refdoc (ud4) : 16751011



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