沼气能源为核心的寒地生态农业循环经济能流分析

发布时间：2018-05-16 09:39

本文选题：沼气能源 + “牛-沼气-玉米”循环系统　；参考：《中国沼气》2017年01期

【摘要】：文章针对寒地典型沼气工程代表的海林沼气发酵系统的"牛-沼气-玉米"农业循环经济模式的运行特性,应用能流理论分析方法,通过能流循环指数、能量产投比、光能利用率等指标,对该系统能量的去向、能量流入与流出进行了系统分析。经计算该系统能流循环指数0.9709,表明海林农场以沼气为核心的农业循环经济可持续发展能力强,自我维持循环能力水平较高;但是,由于该模式养殖子系统的能量产投比较低,造成整个循环系统的产投比仅为0.0432,反映该系统的末端产品能量高附加值转化水平低;系统有机能与无机能之比值为34.128,表明整个系统属有机生态模式。综合各项指标经分析,该农业循环经济系统有利于该地区生态农业的发展,符合可持续发展要求,是一种适用于北方寒区推广的典型循环农业发展模式。
[Abstract]:In this paper, according to the operation characteristics of "cattle, biogas and corn" agricultural cycle economy model of the typical biogas fermentation system in the cold region, the energy flow theory analysis method is applied, and the ratio of energy output to input is obtained through the energy flow cycle index. The energy sources, energy inflow and outflow of the system are analyzed systematically. The energy circulation index of the system is 0.9709, which indicates that the agricultural recycling economy with biogas as the core has strong sustainable development ability and high self-sustaining circulation ability, but the energy output and investment of the farming subsystem in this model is relatively low. The ratio of output to output of the whole circulatory system is only 0.0432, which indicates that the conversion level of high energy added value of the end product of the system is low, and the ratio of organic energy to non-function of the system is 34.128, which indicates that the whole system belongs to an organic ecological model. The comprehensive analysis shows that the agricultural circular economy system is beneficial to the development of ecological agriculture in this area and meets the requirements of sustainable development. It is a typical circular agricultural development model suitable for spreading in cold regions of northern China.
【作者单位】：哈尔滨工业大学市政环境工程学院;辽宁工业大学化学与环境工程学院;
【基金】：中国博士后科学基金(2014M561361) 辽宁省博士科研启动基金项目(201501124) 黑龙江垦区“十三五”规划项目(5021609)
【分类号】：S216.4;S181

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