干旱地区农业研究2017，Vol.35Issue(4)：199-204,242,7.DOI:10.7606/j.issn.1000-7601.2017.04.30
农户型“猪-沼-石榴”循环农业模式能值及经济效益
Emergy and benefit evaluation of "pig-methane-pomegranate" recycling agriculture in Guanzhong Plain
摘要
Abstract
To explore the advantage of "pig-methane-pomegranate (PMP)" recycling agriculture mode,we analyzed the emergy flow characteristics,structure and comprehensive benefits of three modes of PMP using the single pomegranate planting mode (mode Ⅱ) and single pig breeding (mode Ⅲ) as references.The results show that output-input ratio of model Ⅰ was 8.49,higher than that of mode Ⅲ while next to mode Ⅱ.Emengy feedback ratio of model Ⅰ was the minimum value of 0.010.The Environmental loading ratio of model Ⅰ was the lowest,decreased by 1.647 and 0.530 compared with mode Ⅱ and mode Ⅲ,respectively.Emergy waste ratio of model Ⅰ was the lowest among the three modes.Emergy index for sustainable development of model Ⅰ had the best performance,increased by 9.823 and 8.830,respectively.Compared to the single agricultural mode,economic input-output ratio of all subsystems of model Ⅰ increased at various degrees.In summary,model Ⅰ had the high resource-using rate,low emission,low environment pressure,high sustainable development potential,high ecological and economic benefits.关键词
农户型循环农业/能值分析/经济效益Key words
farmers type recycling agriculture/emergy analysis/economic benefit分类
农业科技引用本文复制引用
孙路,韩霁昌,吴发启..农户型“猪-沼-石榴”循环农业模式能值及经济效益[J].干旱地区农业研究,2017,35(4):199-204,242,7.基金项目
陕西省科技厅计划项目(2011TG-06) （2011TG-06）
