Open AccessStudy on the Dynamics Simulation of Quantity Change in Cultivated Land Resources in Chongqing City
Author(s) -
Min Peng,
Ruiping Ran
Publication year - 2013
Publication title -
international journal of business administration
Language(s) - English
Resource type - Journals
eISSN - 1923-4015
pISSN - 1923-4007
DOI - 10.5430/ijba.v4n5p79
Subject(s) - cultivated land , unit (ring theory) , system dynamics , agricultural engineering , reduction (mathematics) , land use , yield (engineering) , agricultural economics , computer science , mathematics , civil engineering , economics , mathematics education , geometry , artificial intelligence , engineering , materials science , metallurgy
This paper uses system dynamics software vensim to simulate the relations between all systems of the quantity of cultivated land resources in Chongqing City. By establishing SD model, it analyzes how the change in the quantity of cultivated land resources influences other systems and how other sub-systems influence the change in the quantity of cultivated land resources. It sets the parameters in the model with the historical data during the years 2002 to 2010 in Chongqing. After a historical examination on them, this paper uses parameter levels in different projects for a simulation influencing analysis. That is, if the cultivated land is used in a large quantity, the reduction speed of the quantity of cultivated land will, instead, be accelerated; and if the per unit yield of grain is increased, the demand on cultivated land will present a linear reduction state