基于能值分析的农垦北安局农业生态系统现状研究

摘要

This paper studied and analyzed the present development status of agricultural eco-economic system in Beian Reclamation Bureau of Heilongjiang Province via applying the theory of emergy analysis.Results show that current total investment emergy of agricultural eco-economic system is 2.76×1021sej and the total output emergy is 7.99 × 1021 sej.Emergy Sustainability Index(ESI) is 1.02,illustrating developmental economy and good sustainability.But ESI is close to 1,indicating that the system is highly depend on non-renewable resources and still has a large potential for development.Therefore,agricultural structure should be further adjusted according to local conditions in the construction of ecological agriculture so as to promote the sustainable development of agricultural economy.%文章运用能值理论分析方法,对黑龙江省农垦北安局农业生态经济系统发展现状进行研究分析。研究结果表明,目前北安局农业生态系统投入的能值总量为2.76×1021sej,总能值产出为7.99×1021sej。能值可持续指数ESI值为1.02,为发展型经济,可持续性较好,但ESI接近1,说明系统发展对不可更新资源利用较大,还远未达到高产投比状态,具有较大的发展潜力。因此,应当在生态农业建设时,因地制宜,进一步进行农业结构调整,促进农业经济的可持续发展。