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温室生态经济系统的功能及改善之结构优化途径
The function of the Greenhouse Eco-economic System and it’s improvement way by the structure optimization
【Author】 Li Pingping Li Dongsheng Wang Jizhang Zhao Qingsong(1.Institute of Agricultural Engineering,Jiangsu University,Zhenjiang 212013,2.Resource and Environment collage,Nanjing Forestry University,Nanjing 210037,3.University of South China,Hengyang,421001)
【机构】 江苏大学现代农业装备与技术省部共建教育部重点实验室; 南京林业大学森林资源与环境学院; 南华大学湖南省企业自主创新研究中心;
【摘要】 本文在大量试验和调研数据的基础上,分析了温室生态经济系统相对于一般农业生态经济系统的功能特征,主要表现在初级生产力、能量转化效率、物质利用效率和价值转化效率总体提高,但是不同类型温室之间差异较大。温室系统在功能上存在着人工辅助能产投比低,肥料投入过高、土壤生态问题严重,成本投入高、生产风险大的问题。针对这些问题提出了从因地制宜设计和选择温室框架结构,适时调整和改善生物结构,以及改善物质投入结构等系统结构优化的途径。
【Abstract】 On the basis of a great number of investigation data,the function features of Greenhouse Eco-economic System relative to the general agriculture Eco-economic System are analyzed.The result shows the primary productivity,energy and material’s utilization efficiency,and value transfer efficiency increase overall,but is quite different between different types of greenhouse.However,the system emerge the problems such as the low output to input ratio of artificial energy,higher fertilizer input,serious soil ecological problem,high-cost investment and high risk.To resolve these problems,the way of structure optimization is put forward,that is to design and select the greenhouse structure based on local conditions,timely adjust and improve the cropping structure,optimizing the material input structure,so as to improve the function of the Greenhouse Eco-economic System.
【Key words】 greenhouse; Eco-economic System; function; structure optimization;
- 【会议录名称】 中国农业工程学会2011年学术年会论文集
- 【会议名称】创新农业工程科技 推进现代农业发展——中国农业工程学会2011年学术年会
- 【会议时间】2011-10-22
- 【会议地点】中国重庆
- 【分类号】S625
- 【主办单位】中国农业工程学会(CSAE)