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基于能值分析的桂林市农业生态经济系统可持续发展研究

Research on sustainable development of agricultural eco-economic system in Guilin city based on the emergy analysis

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【作者】 曾巧云曾行吉廖雪萍周凤珏黄京华

【Author】 ZENG Qiao-yun;ZENG Xing-ji;LIAO Xue-ping;ZHOU Feng-jue;HUANG Jing-hua;College of Agriculture,Guangxi University/Key Laboratory of Crop Cultivation and Farming System in Colleges and Universities of Guangxi;Meteorological Information Center of Guangxi Zhuang Autonomous Region;

【通讯作者】 黄京华;

【机构】 广西大学农学院/广西高校作物栽培学与耕作学重点实验室广西壮族自治区气象信息中心

【摘要】 运用能值分析的理论和方法,通过构建能值分析指标体系,对桂林市2014—2019年农业生态经济系统的能值投入产出情况、环境承载情况以及可持续发展状况进行分析评价。结果表明,2014—2019年,桂林市农业生态经济系统总能值投入波动不大,辅助能值投入呈现先上升后下降趋势,在可更新辅助能值投入中,劳动力能值占94.46%。能值产出中,种植业所占比重最高,其次为畜牧业和林业。能值投资率持续处在较低水平;净能值产出率在2014—2017年逐年递增,2018年开始递减,维持在较高水平;环境负载率较低,环境压力小,系统富有活力和发展潜力。

【Abstract】 Based on the theory and method of emergy analysis,the emergy input-output,environmental carrying capacity and sustainable development of agricultural eco-economic system in Guilin city were analyzed and evaluated by constructing emergy analysis index system. The results showed that the total emergy input of agricultural eco-economic system fluctuated little in Guilin city from 2014 to 2019,and the auxiliary emergy input showed a downward trend after rising. In the renewable auxiliary emergy input,the labor emergy accounted for 94.46%. In emergy output,planting industry accounted for the highest proportion,followed by animal husbandry and forestry. Emergy investment rate remained at a low level;The net emergy output rate increased year by year from 2014 to 2017,and began to decrease in 2018,which remained at a high level;The environmental load rate was low,the environmental pressure was small,and the system was full of vitality and development potential.

  • 【文献出处】 湖北农业科学 ,Hubei Agricultural Sciences , 编辑部邮箱 ,2022年04期
  • 【分类号】F323.22
  • 【被引频次】2
  • 【下载频次】375
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