基于能值理论的洞庭湖南荻收储运模式研究  

Emergy analysis of feedstock harvest,storage and transportation system of Miscanthus lutarioriparius in Dongting Lake

作　　者：彭苗苗 杨塞 刘明稀[4] 陈庆[5] 魏佳琦 肖亮 PENG Miaomiao;YANG Sai;LIU Mingxi;CHEN Qing;WEI Jiaqi;XIAO Liang(College of Bioscience and Biotechnology,Hunan Agricultural University,Changsha 410128,Hunan,China;Yuelushan Laboratory,Changsha 410128,Hunan,China;Orient Science&Technology College of Hunan Agricultural University,Changsha 410128,Hunan,China;College of Agronomy,Hunan Agricultural University,Changsha 410128,Hunan,China;Hunan Anhuanwei Agricultural Technology Corporation Limited,Yuanjiang 413100,Hunan,China;Hunan Dongting Reed Industry Limited Liability Company,Yueyang 414100,Hunan,China)

机构地区：[1]湖南农业大学生物科学技术学院,湖南长沙410128 [2]岳麓山实验室,湖南长沙410128 [3]湖南农业大学东方科技学院,湖南长沙410128 [4]湖南农业大学农学院,湖南长沙410128 [5]湖南安环维农业科技有限公司,湖南沅江413100 [6]湖南洞庭苇业有限责任公司,湖南岳阳414100

出　　处：《湖南林业科技》2025年第1期9-16,共8页Hunan Forestry Science & Technology

基　　金：湖南省创新型省份建设专项(2021NK1050)。

摘　　要：本研究基于能值理论,对洞庭湖南荻秸秆的6种人工和机械收储运模式的能值进行了分析,并对不同模式的生态效率进行了测算与比较。研究发现:在所有模式中,可更新自然资源的能值投入占比最大,最高可达到76.91%,说明自然条件对南荻秸秆收储运系统具有重要影响。机械模式的生态效益能值指标普遍优于人工模式:机械模式的能值自给率较高,均值为0.86,表明其对当地资源的获取程度更高;能值投资率较低,均值为0.16,说明所研究地区的经济发展水平较低;环境负载率较低,均值为0.25,说明机械模式对环境的压力较小;净能值产出率较高,均值为3.26,表明机械模式的生产效率和效益更优;可持续发展指数均大于10,表明机械模式显示出良好的发展潜力。相较于人工模式,机械模式在内部自然环境资源的开发程度、生产效率上具有优势。本研究为南荻秸秆收储运模式的优化提供了科学依据,对促进农业可持续发展具有重要的理论和实践意义。Based on the emergy theory,the emergy of six manual and mechanical harvest,storage,and transportation modes of Miscanthus lutarioriparius straw in Dongting Lake,and the ecological efficiency of different modes were calculated and compared.The study found that among the six modes,the emergy input from renewable natural resources accounted for the largest proportion,up to 76.91%,which demonstrated natural conditions had significant impact on the harvest,storage,and transportation system of M.lutarioriparius straw.The ecological benefit emergy index of the mechanical mode was generally better than that of the manual model.The emergy self-sufficiency ratios of the four mechanical modes were higher,with an average of 0.86,indicating a higher degree of access to local resources;the emergy investment ratios were lower,with an average of 0.16,indicating a lower degree of economic development;the environmental load ratios were lower,with an average of 0.25,indicating less pressure on the environment;the net emergy yield ratios were higher,with an average of 3.26,indicating better production efficiency and benefit;the sustainable development index were greater than 10,showing good development potential.Compared with the manual mode,the mechanical mode had advantages in the development degree and production efficiency of the internal natural environment resources.This study provides a scientific basis for optimization of the harvest,storage,and transportation modes of M.lutarioriparius straw,and has important theoretical and practical significance for promoting sustainable development of agriculture.

关 键 词：能值 南荻 收储运体系 

分 类 号：F323[经济管理—产业经济]