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中国沙漠 ›› 2000, Vol. 20 ›› Issue (s1): 15-21.

• 论文 • 上一篇    下一篇

耗散结构理论在我国北方农牧交错带人地系统分析中的应用

宋豫秦, 张力小, 曹淑艳   

  1. 北京大学 环境科学中心, 北京 100871
  • 收稿日期:2000-01-15 修回日期:2000-03-20 出版日期:2000-12-31 发布日期:2000-12-31
  • 作者简介:宋豫秦(1953-),男(汉族),河南郑州人,博士,副教授,主要从事环境生态与人地关系机理演变研究。
  • 基金资助:
    国家"973"项目(G1999043400);国家"九五"攻关项目(96-920-13-02);院特别支持项目(KZ95T-04;KZ951-A1-301);院重点项目(KZ-952-91-218);国家重大基金课题(49890330);内蒙科委课题"西部之光"(999078);自然科学基金(990141)

Applying Dissipative Structure Theory to Analyze Man-land System in Transitional Zone of Pastures and Farmlands in North China

SONG Yu-qin, ZHANG Li-xiao, CAO Shu-yan   

  1. Center for Environment Science, Peking University, Beijing 100871, China
  • Received:2000-01-15 Revised:2000-03-20 Online:2000-12-31 Published:2000-12-31

摘要: 在分析了耗散结构形成的条件基础上,首先对我国北方农牧交错带人地系统进行了状态识别,指出:北方农牧交错带的大部分人地系统处于低序的耗散结构状态,有些地区的人地系统已退化到近平衡态线性区;沙漠化的成因是系统封闭和自组织混乱;点状治理有其自身的局限性;沙漠化的逆转也应遵循系统演化的分支理论。最后,指出我国北方农牧交错带的人地系统具有脆弱性、低耗散性和功能性的特点。

关键词: 耗散结构理论, 农牧交错带, 人地系统分析, 荒漠化

Abstract: Based on the analysis condition of dissipative structure,the state of man land system of inter locked zone of pastures and farmlands of north China has been identified.The conclusions are that most of the human land systems are in low order structure,some even have been degenerated to the range of linearity.From the point of the dissipative structure theory,the causes of desertification are insulation of the system and chaos of self organization.And the spot recondition has its own limitation,the recovery of the land follows the principle of embranchment evolvement.Finally,the characteristics of dissipative structure of human land system have been analyzed,which are fragile,low dissipative,and functionary.

Key words: dissipative structure theory, interlocked zone of pastures and farmlands, analysis of humanland system, desertification

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