Analysis on Sustainable Development of Small Watershed in Mountain Area by System Dynamics

Abstract:

Small watershed, as a unit of mountain ecosystem, should be suitably protected and developed. System dynamics method was used to analyse the population capability of a small watershed named Longdonggou which was in the upstream area of Minjiang River. The population and agricultre system dynamic models of this watershed were constructed to calculate and forecast the population and population capacity by a soft ware named Venism. By the analysed population and population capacity curves, the following conclusion was obtained that in Longdonggou watershed, which was an agriculture ecosystem, the population was overloaded due to the limit of land resurece, the population should be controlled, and returning farmland to forest was good for the ecological environment and forest economics. Accordingly the configuration of agriculture production should be suitably changed, and the traffic should be improved. Then the social economics and environment could be developed sustainable.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 919-922
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.919
• Online since: September 2013
• Authors: Yue Peng, Nan Shan Ai, Guo Dong Liu
• Keywords: Population Capacity, Small Watershed, System Dynamics (SD)

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