| 摘要: |
| 运用能值理论和方法对兰州农业生态经济系统1996～2008年投入产出情况和可持续发展状况进行 评价分析，结果表明，兰州农业系统对化肥、农药等工业辅助能投入依赖愈来愈强，对劳动力、种子、有 机肥等可更新辅助能的投入逐渐减少;农业投入越来越高，生产成本不断提高，农业系统生产效率呈降低 趋势，环境负载率的不断上升加大了农业生态环境压力，对兰州农业生态经济系统可持续发展带来不利影 响。应大力发展有机、循环农业，拓展农业多种功能，推动农业发展方式转变，促进农业经济、社会和生 态协调持续发展。 |
| 关键词: 能值理论 农业生态经济系统 兰州 |
| DOI：10.7621/cjarrp.1005-9121.20130209 |
| 分类号: |
| 基金项目:基金项目:教育部人文社科项目“西北内陆河灌区农户农田循环生产技术支付意愿、影响因素及激励机制研究”（12YJCZH180）;2009 兰州市哲学社会科学规划项目“农业多功能视角下兰州农业可持续发展能力建设研究” |
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| EVALUATION AND ANALYSIS OF AGRICULTURAL ECO-ECONOMIC SYSTEM IN LANZHOU CITY BASED ON THE EMERGY THEORY |
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Tan Cunfeng, Wang Shenglin
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College of Economics and Management，Gansu Agricultural University，Lanzhou 730070
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| Abstract: |
| The input-output and sustainable status of agricultural eco-economic system of Lanzhou city during 1996 to 2008 was evaluated on the basis of emergy theory. The results showed that more and more industrial assistant en- ergy such as chemical fertilizer， pesticides， etc. were put into the agricultural eco-economic system in Lanzhou， while the input of renewable assistant energy such as labour power， seed and organic fertilizer decreased， which in- dicated the production efficiency of agricultural system had been decreased. The pressure of agro-environment was strengthened with the increase of environmental loading ratio， which made a negative effect on the sustainable de- velopment of Agricultural Eco-economic System in Lanzhou. Therefore， in order to promote agricultural economy， society and ecosystem harmonious and sustainable development， it should promote transformation of the mode of ag- ricultural development， increase organic agriculture and circular agriculture. |
| Key words: emergy analysis agricultural eco-economic system Lanzhou |
