In this research LCA methodology was adapted and analyzed in quantifying estimation of estuarine environment. The analysed objects of estuarine environment were construction methods, facility, and input material into water, and estuarine ecosystem. In this research the function of LCA of estuarine e...
In this research LCA methodology was adapted and analyzed in quantifying estimation of estuarine environment. The analysed objects of estuarine environment were construction methods, facility, and input material into water, and estuarine ecosystem. In this research the function of LCA of estuarine environment was river with the view of controling water, utilizing water, and hydrophilic function. The functional unit was a zone for river maintenance with the length of 1.5Km (both banks, 3 Km) and the width of 200 m. Geographical system boundary was a small river of tributary of Sumjingang river, and time boundary was set as 30-year maintenance. The assumption and limitation of this research are as follows 1) the river prior to maintenance was analyzed as a concrete river 2) to estimate water pollution load, average flow was adapted after examining measured data and annual rainfall. 3) ecological value was voluntarily weighted on the basis of water ecosystem of estuarine ecosystem.4) river facility, input material into water, and ecosystem were analyzed with 1:1:1 weighted values. River maintenance period was 30 years. 30ha was applied for the area with taking into account of both width of 200m. 5) it was analyzed that 15 % of raw and subsidiary material of initial input for maintenance was added with the application of river facility maintenance rate as 15%( stream maintenance rate : Jeungpyung-gun stream maintenance case was taken). According to the result of research, environmental damage indicator of facility was decreased 346pt from 453pt at pre-maintenance to 107 pt at post-maintenance. Among raw and subsidiary materials, remicon, stone-netting bag, and pebbles were showing heavy environmental load in the order. Environmental impact of input material into water system was analyzed from 1827 pt environmental load before construction to 1080 pt of post-maintenance, and damage indicator was improved at 747 Pt . Water quality was improved from 1827Pt (before construction) to 1080Pt(after construction), and ecosystem was improved after maintenance. Environmental indicator in ecosystem was analyzed 427Pt(before construction) to 348Pt(after construction), and damage indicator of Sumnjingang riverine system was improved as much as 79Pt . In the conclusion, estuarine environmental monitoring through LCA in the area of facility, input material into water and ecosystem showed that close-to-nature stream was 1172 pt better than artificial stream in environmental aspects. This research adapted LCA methodology to estimate qualification of estuarine environment and integrated into a single indicator. In the future further research should be performed in accordance with physical environment of stream and characteristics of channel. Research on quantification of ecosystem should be consistently complemented.
In this research LCA methodology was adapted and analyzed in quantifying estimation of estuarine environment. The analysed objects of estuarine environment were construction methods, facility, and input material into water, and estuarine ecosystem. In this research the function of LCA of estuarine environment was river with the view of controling water, utilizing water, and hydrophilic function. The functional unit was a zone for river maintenance with the length of 1.5Km (both banks, 3 Km) and the width of 200 m. Geographical system boundary was a small river of tributary of Sumjingang river, and time boundary was set as 30-year maintenance. The assumption and limitation of this research are as follows 1) the river prior to maintenance was analyzed as a concrete river 2) to estimate water pollution load, average flow was adapted after examining measured data and annual rainfall. 3) ecological value was voluntarily weighted on the basis of water ecosystem of estuarine ecosystem.4) river facility, input material into water, and ecosystem were analyzed with 1:1:1 weighted values. River maintenance period was 30 years. 30ha was applied for the area with taking into account of both width of 200m. 5) it was analyzed that 15 % of raw and subsidiary material of initial input for maintenance was added with the application of river facility maintenance rate as 15%( stream maintenance rate : Jeungpyung-gun stream maintenance case was taken). According to the result of research, environmental damage indicator of facility was decreased 346pt from 453pt at pre-maintenance to 107 pt at post-maintenance. Among raw and subsidiary materials, remicon, stone-netting bag, and pebbles were showing heavy environmental load in the order. Environmental impact of input material into water system was analyzed from 1827 pt environmental load before construction to 1080 pt of post-maintenance, and damage indicator was improved at 747 Pt . Water quality was improved from 1827Pt (before construction) to 1080Pt(after construction), and ecosystem was improved after maintenance. Environmental indicator in ecosystem was analyzed 427Pt(before construction) to 348Pt(after construction), and damage indicator of Sumnjingang riverine system was improved as much as 79Pt . In the conclusion, estuarine environmental monitoring through LCA in the area of facility, input material into water and ecosystem showed that close-to-nature stream was 1172 pt better than artificial stream in environmental aspects. This research adapted LCA methodology to estimate qualification of estuarine environment and integrated into a single indicator. In the future further research should be performed in accordance with physical environment of stream and characteristics of channel. Research on quantification of ecosystem should be consistently complemented.
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