基于能值分析的2006年广东省社会代谢研究
网络出版日期: 2009-07-25
基金资助
广东省科技计划项目(2007B031800019)
Emergy-based Socioeconomic Metabolism of Guangdong Province in 2006
Online published: 2009-07-25
社会代谢分析为全球环境变化人文因素计划的重要课题之一，已成为当前区域生态研究的热点。本文应用H.T.Odum创立的基于生物物理原理的能值方法结合社会代谢概念，对广东省2006年资源利用种类、效率与代谢循环状况进行了分析，通过一系列能值指标，评价广东省社会代谢的可持续性。结果表明：2006年广东省总体呈现较好的发展局面，能值剩余57.31×1022 sej体现了其财富的真正增长，人均能值使用量为1.60×1016 sej，能值福利水平较高；但同时也暴露出影响广东省社会代谢正常运作的原因：输入能值占总能值使用量比为0.73，对进口资源过度依赖；废弃物能值占总能值使用量比为0.26，废弃物产出过多；环境负荷率为14.36，资源的过度使用使环境承受的压力较大等。研究还发现，广东能值可持续性指数呈现逐步下降趋势。广东省目前的代谢过程仍是线性运作模式为主。未来广东省应向循环代谢模式发展，重组并优化其代谢能力，通过建立低消耗高效益产业体系，加大开发替代性资源和新能源，提高废弃物处理能力和完善代谢机制等措施，提高经济社会发展与自然生态环境的和谐程度。
关键词： 社会代谢；广东省；能值；能值指标
吴玉琴1|杨春林2 . 基于能值分析的2006年广东省社会代谢研究[J]. 地理科学进展, 2009 , 28(4) : 546 -552 . DOI: 10.11820/dlkxjz.2009.04.009
The study of regional ecology focuses on socioeconomic metabolism as one of the important issues by International Human Dimension Programme of Global Environment Change. Combining the idea with emergy synthesis, originally established by H.T.Odum, this paper analyzes and updates the social metabolism of Guangdong province on the aspects of the variety, efficiency and metabolic status of resource utilization in 2006. Through decades of emergy indicators, the conclusions are drawn as follows: Guangdong developed well as a whole in 2006. It had high level of emergy welfares with per capita 1.60×1016 sej and the emergy surplus was about 57.31×1022 sej, showing the increase of its real wealth, but the imported emergy was 0.73 times of total emergy use and the waste ratio was 0.26, while the environmental loading ratio was 14.36 in 2006. Some problems has emerged such as the excessive use of resources, the over-dependence on import, the overfull output of wastes and the serious environmental load. The emergy sustainability index is also decreasing year by year. At present it still presents a linear operational pattern and will have negative effects on its environment and development. Therefore, it is necessary to optimize and reform the metabolic course to the circular mode. In order to improve the harmoniousness between the nature and the society of Guangdong Province, the paper proposes to set up low-cost and high-benefit industrial systems, to increase the development of alternative resources and new energy, to enhance the capacity of waste treatment and to perfect the metabolic mechanism in the future.
Key words： emergy; emergy indices; Guangdong province; socioeconomic metabolism
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