基于生命周期评价的苹果树修剪枝条堆肥处理环境影响及经济效益分析  

Environmental Impact and Economic Benefits Analysis of Composting Apple Pruning Branches Based on Life Cycle Assessment

作　　者：李雨佳 康以琳 欧阳雨芊 邵蕾[1] LI Yujia;KANG Yilin;OUYANG Yuqian;SHAO Lei(Yantai Institute of China Agricultural University,Yantai Shandong 264670,China)

机构地区：[1]中国农业大学烟台研究院,山东烟台264670

出　　处：《农业工程》2024年第4期74-79,共6页AGRICULTURAL ENGINEERING

基　　金：中国农业大学烟台研究院引导类项目(Z202201)。

摘　　要：利用生命周期评价方法分析了苹果树修剪枝条堆肥处理模式的环境影响,并分析其肥料化潜力与经济效益,对枝条处理各环节进行污染物排放评估,为苹果树修剪枝条肥料化处理工艺的改进提供参考。研究结果表明,苹果树修剪枝条堆肥处理过程中,每处理功能单位苹果树枝条产生污染物总量76.0219 kg,其中二氧化碳排放量占总排放量的96.79%,全球变暖对环境的影响高于酸化与富营养化;粉碎包装、熟化灭菌、粉碎和堆肥阶段产生的污染物气体排放量分别占总排放量的38.26%、27.22%、21.04%和10.85%;苹果树修剪枝条堆肥处理的生产成本515元/t,经济效益285元/t,每处理1 t苹果枝条生产的有机肥,可替代尿素、过磷酸钙、硫酸钾的量分别为61.3、120.0和13.2 kg。In order to provide reference for improvement of apple pruning branch fertilization treatment process,environmental impact of apple pruning branch fermentation composting treatment mode by using life cycle assessment was analyzed,and fertilization potential,economic benefits and pollutant emissions of each step of branch treatment were assessed.Results showed that,total amount of pollutants produced per functional unit of apple pruned branches treatment was 76.0219 kg,CO2 emissions accounted for 96.79%of total emissions,which led to a higher impact of global warming on environment than acidification and eutrophication.Pollutant gas emissions from crushing and packing process,autoclaving of materials,branch crushing and composting process stages accounted for 38.26%,27.22%,21.04%and 10.85%of total emissions respectively.Treatment cost of apple pruning branch was 515 yuan/t and economic benefit was 285 yuan/t.Organic fertilizer produced by processing 1 t of apple paper strips could replace urea,calcium superphosphate and potassium sulphate by 61.3,120 and 13.2 kg,respectively.

关 键 词：生命周期评价 苹果树 堆肥 环境影响潜力 经济效益 肥料化潜力 

分 类 号：S661[农业科学—果树学]