文献类型： 外文期刊

作者： Liu, Yuexian ¹ ; Langer, Vibeke ¹ ; Hogh-Jensen, Henning ³ ; Egelyng, Henrik ⁴ ;

作者机构： 1.Univ Copenhagen, Dept Agr & Ecol, Fac Life Sci, DK-2630 Taastrup, Denmark

2.Beijing Acad Agr & Forestry, Inst Informat, Beijing 100094, Peoples R China

3.Aarhus Univ, Dept Policy Anal, Natl Environm Res Inst, DK-4000 Roskilde, Denmark

4.Danish Inst Int Studies, DK-1401 Copenhagen, Denmark

关键词： Pear production chain; Life Cycle Assessment; Organic farming; GHG emission; Fossil energy use

期刊名称：JOURNAL OF CLEANER PRODUCTION （ 影响因子：9.297； 五年影响因子：9.444 ）

ISSN： 0959-6526

年卷期： 2010 年 18 卷 14 期

页码：

收录情况： SCI

摘要： A Life Cycle Assessment (LCA) was performed to analyze environmental consequences of different pear production chains in terms of fossil energy use and greenhouse gas (GHG) emission in China. The assessment identified hotspots that contributed significantly to the environmental impacts of pear production from the cradle to the point of sale. The results showed that GHG emissions and fossil energy use varied in the different production chains because the environmental performance does not associate with the farming systems (i.e. organic vs. conventional), but is co-determined by farm topography and thus machinery use, by market demands to seasonality of products and thus the need for storage, and by local farming practices including manure management. The LCA could be used as a tool to guide selections of agricultural inputs with the aim of reducing environmental impacts. The results of the LCA analysis indicate that a list of choices are available to reduce energy use and GHG emission in the pear production chain, namely substitution of the traditional storage systems by an efficiently controlled atmosphere storage system, using manure for biogas production, conversion from the conventional farming to organic farming, and reduction of mechanical cultivation. (C) 2010 Elsevier Ltd. All rights reserved.