辽宁省朝阳市农业生态经济系统能值分析

生态学杂志 ›› 2005, Vol. ›› Issue (8): 902-906.

辽宁省朝阳市农业生态经济系统能值分析

付晓, 吴钢, 尚文艳, 刘阳, 王宏昌, 付海威

中国科学院生态环境研究中心系统生态重点实验室, 北京, 100085

收稿日期:2004-10-29 修回日期:2004-12-24 出版日期:2005-08-10
通讯作者: 吴钢
基金资助:
国家自然科学基金项目(40473054);农业科技成果转化基金资助项目(03EFN₂16600355).

Emergy analysis of agricultural eco-economic system in Chaoyang City,Liaoning Province

FU Xiao, WU Gang, SHANG Wenyan, LIU Yang, WANG Hongchang, FU Haiwei

Key Laboratory of Systems Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

Received:2004-10-29 Revised:2004-12-24 Online:2005-08-10

摘要/Abstract

摘要： 应用能值分析的方法,研究了以辽宁省朝阳市为代表的辽西半干旱区农业生态经济系统的能值投入及产出结构,并通过计算、对比能值评价指标,分析了朝阳市农业生态经济系统的发展现状。结果表明,对自然资源的过度利用造成了当地生态环境条件的恶化,由此产生不可更新自然资源的流失以及产出能值的损失;对可更新有机能的不充分利用也是造成当地资源浪费和环境破坏的重要原因。

关键词: 榕树, 生态型, 净光合速率, 气孔导度

Abstract: By the method of emergy analysis,this paper studied the emergy input and output of agricultural eco-economic system in Chaoyang City,semi-arid region of western Liaoning Province,and analyzed the development status of the system through calculation and comparison.The results showed that the local ecological environment was worsened by the excessive utilization of natural resources,which resulted in the severe loss of non-renewable natural resources and the emergy output from the eco-system.Insufficient use of renewable organic energy was the other main cause of the resources waste and environment destruction in the area.

Key words: Banyan, Ecotype, Net photosynthetic rate, Stomatal conductance

中图分类号:

F323.22

付晓, 吴钢, 尚文艳, 刘阳, 王宏昌, 付海威. 辽宁省朝阳市农业生态经济系统能值分析[J]. 生态学杂志, 2005, (8): 902-906.

FU Xiao, WU Gang, SHANG Wenyan, LIU Yang, WANG Hongchang, FU Haiwei. Emergy analysis of agricultural eco-economic system in Chaoyang City,Liaoning Province[J]. cje, 2005, (8): 902-906.

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