稻鸭共作有机农业模式的能值评估

应用生态学报

稻鸭共作有机农业模式的能值评估

席运官^1，2;钦佩¹

¹南京大学生命科学学院，南京 210093；²国家环保总局南京环境科学研究所，南京 210042

收稿日期:2005-01-20 修回日期:2005-05-23 出版日期:2006-02-18 发布日期:2006-02-18

Emergy value evaluation on rice-duck organic farming mode

XI Yunguan^1,2;QIN Pei¹

¹School of Life Science,Nanjing University,Nanjing 210093,China;²Nanjing Institute of Environmental Science,State Environmental Protection Administration,Nanjing 210042,China

Received:2005-01-20 Revised:2005-05-23 Online:2006-02-18 Published:2006-02-18

摘要/Abstract

摘要： 应用能值分析方法对稻鸭共作有机农业模式（模式Ⅰ）和对应的稻麦常规生产模式（模式Ⅱ）进行比较研究，并比较了两种模式的生态经济效益.结果表明，模式Ⅰ的能值效益高，自组织能力、可持续发展能力强，产品安全性高，净能值产出率（EYR）、系统产出能值反馈率（FYE）、能值可持续指标（ESI）分别是模式Ⅱ的1.57、14.1和8.71倍；基于能值的产品安全性指标（EIPS）模式Ⅰ为0，模式Ⅱ为-0.66；模式Ⅰ对环境的压力小于模式Ⅱ，能值投资率（EIR）,环境负载率（ELR）分别是模式Ⅱ的40.1%和18.3%；但模式Ⅰ的经济效益低于模式Ⅱ，其产出、毛收入和净效益分别低于模式Ⅱ15.7%、9.6%和29.6%；以能值货币价值计算，模式Ⅰ的产投比、毛收入和净收入分别高于模式Ⅱ50%、102.6%和136.4%.随着生产系统的优化和市场对有机食品认知程度的提高，模式Ⅰ的经济效益具有提高的潜力.

关键词: 根癌农杆菌, 转化频率, 禾谷类作物

Abstract: Employing emergy value evaluation method,this paper compared the ecological and economic benefits of rice-duck organic farming system (modeⅠ) and conventional rice-wheat rotation system (modeⅡ) in Shanghai suburb.The results showed that modeⅠhad better emergy benefits,higher self-organizing ability and sustainability,and higher product safety.The net emergy yield ratio (EYR),feedback ratio of yield emergy (FYE ),and emergy sustainable index (ESI) of modeⅠwere respectively 1.57,14.1,and 8.71 times as much as those of modeⅡ,and the emergy index of product safety (EIPS) was 0 in modeⅠbut -0.66 in modeⅡ.The emergy investment ratio (EIR) and environmental loading ratio (ELR) of modeⅠwere 40.1% and 18.3% of modeⅡ,respectively,suggesting that modeⅠhad less environmental pressure than modeⅡ.ModeⅠhad lower economic benefits than modeⅡ.The economic output,gross income,and net income of modeⅠwere 15.7%,9.6%,and 29.6% less than those of modeⅡ,respectively.As for Em$,the output,gross income,and net income of modeⅠwere respectively 50%,102.6%,and 136.4% higher than those of modeⅡ.With the system optimization and the development of organic food market,modeⅠhad the potential to improve its economic benefits.

Key words: Agrobacterium tumefaciens, Transformation efficiency, Cereals

席运官^1，2;钦佩¹. 稻鸭共作有机农业模式的能值评估[J]. 应用生态学报.

XI Yunguan^1,2;QIN Pei¹ . Emergy value evaluation on rice-duck organic farming mode[J]. Chinese Journal of Applied Ecology.

[1]	孔英珍, 周功克, 王根轩, 王亚馥. 影响根癌农杆菌转化的因素及其在单子叶作物上的应用 [J]. 应用生态学报, 2000, (5): 791-794.
[2]	孔英珍, 周功克, 王根轩, 王亚馥. 影响根癌农杆菌转化的因素及其在单子叶作物上的应用 [J]. 应用生态学报, 2000, (5): 791-794.