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http://dx.doi.org/10.5338/KJEA.2003.22.1.041

Application of the Life Cycle Assessment Methodology to Rice Cultivation in Relation to Fertilization  

Shin, Joung-Du (National Institute of Agricultural Science and Technology, RDA)
Lim, Dong-Kyu (National Institute of Agricultural Science and Technology, RDA)
Kim, Gun-Yeob (National Institute of Agricultural Science and Technology, RDA)
Park, Mun-Hee (National Institute of Agricultural Science and Technology, RDA)
Koh, Mun-Hwan (National Institute of Agricultural Science and Technology, RDA)
Eom, Ki-Cheol (National Institute of Agricultural Science and Technology, RDA)
Publication Information
Korean Journal of Environmental Agriculture / v.22, no.1, 2003 , pp. 41-46 More about this Journal
Abstract
The suitability of the life Cycle Assessment (LCA) methodology to analyze the environmental impact of rice cultivation with different fertilizing systems is investigated. The arst part of an LCA is an inventory of parameters used and emissions released due to the system under investigation. In the following step, the Life Cycle Impact Assessment the inventory data were analyzed and aggregated in order to finally get one index representing the total environmental burden. For the life Cycle Impact Assessment (LCIA) the Eco-indicator 95 method has been chosen because this is well documented and regularly applied impact assessment method. The resulting index is called Eco-indicator value. The higher the Eco-indicator value the stronger is the total environmental impact of an analyzed fertilizing system. The rice field experiment conducted in middle parts of korea was chosen as an example for the life cycle impact analysis. In this experiment the treatments were consisted of none fertilizer plot (NF), standard fertilizer plot (SF) applied chemical fertilizers based on soil chemical analysis before rice transplanting, and efflux fertilized plot (EF) applied with pig wastes fermented as the same rates of SF plot as basis on total nitrogen content. The obtained Eco-indicator values were clearly different among the treatments in the rice trial. The total Eco-indicator values for SF and EF have been observed 58 and 38% relative to the NF, respectively. For all the treatments the environmental effects of eutrophication contributed most to the total Eco-indicator value. The results appeared that the LCA methodology is basically suitable to assess the environmental impact associated with different fertilizer applications for rice cultivation. A comparative analysis of the fertilizing system's contribution to global warming and eutrophication is possible.
Keywords
life cycle impact assessment; total Eco-indicator value; global warming; eutrophication; rice cultivation;
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