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An interaction model for livestock farming and steppe ecosystem

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Author Info

  • Demberel S.

    (Centre Ast. Geophysics Mongolian Ac. Sc.)

  • Nicholas Olenev

    (Dorodnicyn Computing Centre RAS)

  • Igor Pospelov

    (Dorodnicyn Computing Centre RAS)

Abstract

This work builds a macro model for livestock farming based on aggregation of initial micro description for rational control of total number of vintage livestock (age cohorts). Solution of an optimal problem on cohort total number of livestock gives the age limit for the operation of animals, the volume of the credits for the farm, the speed of slaughter, and the conditions of the farm purchase of young animals. The integral equation for the equilibrium price of young animals is obtained. A steppe ecosystem model based on a carbon cycle is constructed. The model takes into account some external influences. It is taken into account that the maintenance of animals damages the nature. Numerical experiments on the obtained ecological- economic model with the rational expectations is solved with the help of the highly productive calculations on the supercomputer MVS 1000M. On the basis of base scenario the developments of processes in several alternatives are built and calculated. One of scenarios demonstrates a regime in which the area of natural pastures is reduced by the virtue of external human activity. }

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Bibliographic Info

Paper provided by EconWPA in its series GE, Growth, Math methods with number 0309009.

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Date of creation: 19 Sep 2003
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Handle: RePEc:wpa:wuwpge:0309009

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Web page: http://128.118.178.162

Related research

Keywords: livestock farming; vintage livestock; age cohorts; credits; farm; equilibrium price; steppe ecosystem model; carbon cycle; ecological economic model;

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