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林业科学 ›› 2001, Vol. 37 ›› Issue (zk): 194-199.doi: 10.11707/j.1001-7488.2001S136

• 论文及研究报告 • 上一篇    下一篇

毛竹林生态系统能流经济阈值模拟研究

何东进 洪伟 吴承祯 蓝斌   

  1. 福建农林大学林学院,南平353001;鹭江大学,厦门361000
  • 收稿日期:2001-01-08 修回日期:1900-01-01 出版日期:2001-11-25 发布日期:2001-11-25

A STUDY ON THE SIMULATION OF ECONOMICAL THRESHOLD OF ENERGY FLOW IN PHYLLOSTACHYS PUBESCENS ECOSYSTEM

He Dongjin,Hong Wei,Wu Chengzhen,He Dongjin,Hong Wei,Wu Chengzhen   

  1. Forestry college of Fujian Agriculture and Forestry University Nanping 353001;Lujiang University Xiamen 361000
  • Received:2001-01-08 Revised:1900-01-01 Online:2001-11-25 Published:2001-11-25

关键词: 毛竹, 生态系统, 能流动态模型, 经济阈值, 补偿与超补偿

Abstract:

Using the data obtained from sample plots of Phyllostachys pubescens, the dynamic model of energy flow of Phyllostachys pubescens ecosystem was built in this paper.Based on the model,the analysis of energy flow was combined organically with the methods of economical threshold, the concept of economical threshold of energy flow of Phyllostachys pubescen ecosystem (EET) was put forward,and the effect of compensation and super compensation were discussed furthermore.The results showed that the economical threshold of energy flow of Phyllostachys pubescens ecosystem were: EETleaf=0.3133·x3,EETbranch=0.2440·x1(where x1 and x3 represent energy of leave and branches respectively) ;the effect of compensation and super compensation existed in Phyllostachys pubescens, and the compensation point and super compensation point of Phyllostachys pubescens were 31.33%,13.61% (expressed in defoliation rate)and 24.40%,11.94% (expressed in branch-cut rate)respectively.Therefor,this paper will not only enrich the study of energy ecology in the Phyllostachys pubescens ecosystem,but also provide a scientific basis for the management of Phyllostachys pubescens.

Key words: Phyllostachys pubescens, Ecosystem, Dynamic model of energy flow, Economical threshold, Compensation and super compensation