| 利用耗散结构中的熵变计算探讨城镇生态系统的发展方向 |
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| 引用本文： | 吴雷,许秀英.利用耗散结构中的熵变计算探讨城镇生态系统的发展方向[J].城市环境与城市生态,2000,13(2):42-44. |
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| 作者姓名： | 吴雷 许秀英 |
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| 作者单位： | 南京水利科学研究院水工所!南京210029(吴雷)，南京市经济信息中心!南京210008(许秀英，陈俊良) |
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| 摘 要： | 判断城镇生态系统的发展方向通常用系统的产值或利润 ,这不能全面地表达城镇生态系统的的物质流、能量流、信息流、人口流以及货币流对系统的作用。文章从城镇生态系统的本质出发 ,利用耗散结构理论 ,探讨了城镇生态系统的熵变计算公式 ,并将它应用到大丰市和锡山市 ,所得结论与实际基本相符。因此 ,建议将熵变作为城镇生态系统的一个综合参数加以利用。
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| 关 键 词： | 耗散结构 城镇生态系统 熵变 |
Discussion of the Developing Direction of Town Ecosystem by Calculating the Entropy in Dissipative Structure |
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| WU Lei ,XU Xiu ying ,CHEN Jun liang.Discussion of the Developing Direction of Town Ecosystem by Calculating the Entropy in Dissipative Structure[J].Urban Environment & Urban Ecology,2000,13(2):42-44. |
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| Authors: | WU Lei XU Xiu ying CHEN Jun liang |
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| Institution: | WU Lei 1,XU Xiu ying 2,CHEN Jun liang 2 |
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| Abstract: | Direction of town ecosystem development was often judged by the output value or profit of the system, but it was unable to fully state the effects of materials flow,energy flow,information flow,population flow and currency flow within the town ecosystem.In this paper,entropy calculating formula was discussed by means of dissipative structure theory and applied the calculated formula to predict entropy changes of the town ecosystem of Dafeng and Xishan city in Jiangsu province,and the results met the fact well.Therefore, entropy would be able to serve as a comprehensive parameter on town ecosystem. |
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| Keywords: | dissipative structure town ecosystem entropy developing direction |
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