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木材采运系统物质流与能量流模式的分析

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2008年05期
Page:
37-40
Column:
研究论文
publishdate:
2008-09-30

Article Info:/Info

Title:
Analysis of material flow and energy flow in forest logging system
Article ID:
1000-2006(2008)05-0037-04
Author(s):
ZHAO Chen1 WANG Da-ming1 ZHANG Zheng-xiong2
1. College of Civil Engineering Nanjing Forestry Uoiversity, Nanjing 210037, China; 2. College of Traffic Fujian Agriculture and Forestry University, Fuzhou 350002. China
Keywords:
Logging Material flow Energy flow Material flow chart Energy flow chart Flow model
Classification number :
S782
DOI:
10.3969/j.jssn.1000-2006.2008.05.007
Document Code:
A
Abstract:
The material flow ira a logging system can be divided into wooden material flow, biomass flow, nutrient flow, soil flow and water content flow. Energy flow was the force to push material flows and their transformation. The wooden material flow is consisted of three sub-flows of input, lost and output. The flow showed that the material flows in a production process and between production stages could be applied to analyze the efficiency of timber resources and the environment burden. The energy flow included five sub-flows of input, output, added, lost and recovery for other use. The flow showed that the energy flows in a production process and between production stages could be applied to analyze tbe unil energy consumption and the energy efficiency. The relations among the flows of different materials in the system and the coupling relation between the material flow aud the energy flow in the system were fbund in the study of log harvesting productiin process. The study provided the basis for further researches on the ecology-based logging operation syslem.

References

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Last Update: 2013-05-20