کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2413554 1552027 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Organic production systems: Sustainability assessment of rice in Italy
ترجمه فارسی عنوان
سیستم های تولید آلی: ارزیابی پایداری برنج در ایتالیا
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی


• Environmental performance of Organic Rice Production System was assessed.
• Life Cycle Assessment method was applied from a cradle-to-field gate perspective.
• Compost production and fertilizers emissions are the main hotspots.
• Green manure and compost applications involves considerable methane emissions.
• Alternative scenarios can reduce the environmental impact (-13%; −51%)

Even though organic practices are getting more and more widespread, there is scant of information on their environmental impacts. A comprehensive approach is needed in order to take into account, on the one hand, the lower amount of inputs normally used (e.g. pesticides) in organic systems and, on the other hand, the lower yield they usually imply.The aim of this study is to assess the environmental profile of organic rice cultivation in a farm located in Pavia district (Lombardy). To this purpose, a Life Cycle Assessment methodology, with a cradle-to-field gate perspective, was applied. Inventory data were collected in a rice farm located in Lomellina where organic rice has been cultivated over about 70 ha in the past 15 years.The environmental profile of organic rice was analysed in terms of 11 different impact categories: climate change (CC), ozone depletion (OD), particulate matter (PM), human toxicity (HT), Photochemical ozone formation (POF), terrestrial acidification (TA), terrestrial eutrophication (TE), freshwater eutrophication (FE), marine eutrophication (ME), freshwater ecotoxicity (FEx), and mineral and fossil resource depletion (MFRD).The results suggest that the main environmental hotspots for organic rice are: the emissions of methane from the flooded fields, the production of compost, the nitrogen emissions associated with the application of fertiliser and the mechanisation of the field operations.Finally, different mitigation strategies have been proposed and investigated. Among these strategies, the substitution of organic compost with cattle manure appears to bring the greatest benefits in 9 out of 11 impact categories. Such benefits range from approximately 13% up to 51%, depending on the impact categories considered. The introduction of aerations during the cultivation period can reduce only climate change (about −9%) but increase all the other environmental effects.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agriculture, Ecosystems & Environment - Volume 225, 1 June 2016, Pages 33–44
نویسندگان
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