This study aims at deriving the implications for adaptation policy and research target regarding climate change risk assessment in ecosystem sector in Korea. The common ground of exemplary cases of “world leaders” in terms of adaptation policies and researches was that they emphasize nationwide study on climate change on biodiversity and ecosystem in target of establishing scientific evidence-bases and reducing uncertainty fortheir national adaptation policies and plans. In light of this trend, Korean government should settle down more successful adaptation structure by leading adaptationsysteminfurthernationalpolicy-settings to observeUNFCCC and CBDintegratedly and effectively, considering the economic value of adaptation in policy, and strengthening scientific research programs and technology developments. Moreover, risks assessment based on diagnoses and analysis on the risk factors (hazard, exposure, and vulnerability)for climate change in nationwide habitats and species and consolidations with subsequent adaptation strategies could make adaptations in ecosystem sector more effective and successful.
Global warming becomes a serious issue that poses subsidiary issues like a sea level rise or a capricious climate over the world. Because of severe heat-wave of the summer in Korea in 2016, a big attention has been focused on urban heatisland since then. Notjust about heat-wave itself, many researches have been concentrated on how to adapt in this trendy warming climate and weatherin a small scope. A big part of existing studies is mitigating “Urban Heat Island effect” and that is because of huge impervious surface in urban area where highly populated areas do diverse activities. It is a serious problem thatthis thermal context has a high possibility causing mortality by heat vulnerability. However, there have been many articles of a green infrastructures’ cooling impact in summer. This research pays attention to measure cooling effect of a street planting considering urban canyon and type of green infrastructures in neighborhood scale. This quantitative approach was proceeded by ENVI-met simulation with a spatial scope of a commercial block in Seoul, Korea. We found the dense double-row planting is more sensitive to change in temperature than that of the single-row. Among the double-row planting scenarios, shrubs which have narrow space between the plant and the land surface were found to store heat inside during the daytime and prevent emitting heat so as to have a highertemperature at night. The quantifying an amount of vegetated spaces’ cooling effectresearch is expected to contribute to a study of the cost and benefit for the planting scenarios’ assessment in the future.
Long term flow measurement and water quality analysis data need to determine the target and allowable load for each basin in Total Water Pollution Load Management System (TWPLMS). The Load Duration Curve (LDC) is analyzed the relationship between flow data and water quality, and evaluates the pollutant load characterization by flow conditions. LDC of Kyeongancheon is created by the Flow Duration Curve (FDC) that was analyzed 8-day interval measured flow data from 2006 to 2015 and numeric water quality target in Kyeongancheon. As a result of this study, it is necessary to manage the point source pollutant because the numeric water quality target is not satisfied in the low flows. Also the numeric water quality target has been exceed for four months from March to June of the year and continuous and systematic watershed management is required to satisfy the numeric water quality target.
Environmental changes can affectlife-history traits, such as growth rate and reproduction, and organisms adapt on a given environmental condition to maximize ecological fitness. This study shows the effects of watertemperature and dissolved oxygen level on early growth and accumulated damage in fish using a dynamic-state-dependent model.I have hypothesized thatthe level offoraging activity is related to growth and stress and so the optimal level can maximize reproductive success - ultimately,fitness. The criticaltemperature and dissolved oxygen (DO)is also defined as inducing the maximum growth rate atthe level. So,the model predicts the highest growth rate at oxygen saturation and lower growth rate atlower or higherlevel of DO in water. Lower DO (i.e., hypoxia) causes slower growth rate through higher amount of accumulated stress whereas higher DO(i.e., hyperoxia)induces faster growth rate, but smaller body size. In addition, I show that there is lower impact when considering simple orindependent environmentalfactors on environmental assessment. My findings suggest that multiple environmental factors as physiological ecology approach should be considered to improve impact assessment in environmental changes and a further study is needed to develop advanced assessment tools considering multiple environmental factors.
Artificial lighting is an essential part, but it causes light pollution due to unnecessary or excessive use of light. Light pollution has negative effects such as power waste, adverse health effects, destruction of the ecosystem. But currently, light pollution is managed only post-management. The purpose of this study is to standardize methods of environmental impact assessment focusing on light pollution to effectively manage and reduce the negative effect of areas that may cause light pollution in advance.
This study aims to provide basic data forthe decision-making process in selecting sites for wetland restoration projects. To this end, the current list of demaged wetlands was identified based on the findings from the nationwide monitoring project in 2016 targeted at wetlands in inland areas.Then, to determine the necessity of restoration for these demaged sites, the cause of demage was investigated, and their conservation value was examined from an ecological and legal perspective.The 2016 monitoring project identified a total of 20 demaged wetlands, of which one site was deemed to have high conservation value through analysis ofits ecological and legal values and on-site reviews. The results ofthis study are expected to support policymakers’ decision-making in selecting wetlands for restoration projects since it identifies priority sites among demaged wetlands that require immediate restoration efforts.It should also be pointed outthat wetlands in South Korea cannot benefit from legal protection despite their high conservation value unless they have a designated status as protected areas.