study of environmental impacts for potato agroecosystems of iran by using life cycle assessment (lca) methodology
Authors
abstract
life cycle assessment (lca) had proven to be an appropriate assessment tool for analysis of agri-food products by identifying, quantifying and evaluating the resources consumed and emissions released into the environment. this study was performed for evaluation the environmental impacts of potato agroecosystems based on nitrogen levels by using lca methodology. tuber yield mean during 1999-2013 and consumed inputs as one hectare were determined and lca at four steps including goal definition and scoping, inventory analysis, life cycle impact assessment and integration & interpretation were calculated. impact categories were acidification, eutrophication and global warming. functional unit was considered as one tonne tuber. the results revealed that the maximum aquatic and terrestrial eutrophication potentials were computed for >400 kg n ha-1 with 0.72 po4 equiv./t tuber and 1.80 nox equiv./t tuber, respectively. the highest global warming potential was calculated 948.87 co2 equiv./t tuber for 350-400 kg n ha-1. the maximum eco-index were computed for >400 kg n ha-1 with 0.37 eco-x per one tonne tuber. the highest values for impact categories such as aquatic eutrophication, terrestrial eutrophication and acidification were calculated for >400 kg n ha-1 with 0.29, 0.015 and 0.012 eco-x per one tonne tuber, respectively.
similar resources
comparison of environmental impacts for dryland and irrigated barley agroecosystems by using life cycle assessment (lca) methodology
this study examined the environmental impacts of irrigated and rainfed barley agroecosystems of iran based on nitrogen levels by using lca methodology during 1999-2013. four steps includung goal definition and scoping, inventory analysis, life cycle impact assessment and integration & interpretation were considered. impact categories were acidification, eutrophication and global warming. functi...
full textstudy of cohesive devices in the textbook of english for the students of apsychology by rastegarpour
this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
Food Polymeric Packaging Life Cycle Assessment (LCA)
Food packaging is used to maintain the safety and quality of food during distribution and storage and to protect them from adverse internal and external conditions, such as water vapor, spoilage due to microorganisms, moisture, light, and dust. In this regard, lots of research studies have been done to increase shelf life, safety, and quality to create suitable physico...
full textassessment of the efficiency of s.p.g.c refineries using network dea
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Life-Cycle Assessment methodology: a tool for the evaluation of environmental and toxicological impacts of ammunitions
Over the last ten years the environmental concerns associated with the military activities have increased due to legislation pressure and an increasing awareness to the environmental issues. Such situation has leaded the defence industry and the Armed Forces to seek for a tool to evaluate the environmental burdens associated with ammunitions. Some methodologies have been applied to evaluate the...
full textinvestigating the environmental impacts of kiwifruit production in guilan province of iran based on life cycle assessment methodology
this study aimed to evaluate the environmental consequences of kiwifruit production in guilan province of iran by the life cycle assessment (lca) methodology during growing season of 2011-2012. data were obtained from 84 kiwifruit producers using a face to face questionnaire method. for this purpose, a functional unit equal to one ton kiwifruit was assumed based on iso 14040 method. impacts of ...
full textMy Resources
Save resource for easier access later
Journal title:
تولید گیاهان زراعیجلد ۸، شماره ۳، صفحات ۱۹۹-۲۲۴
Keywords
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023