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도시의 공간 확장 및 형태적 특징에 따른 산림녹지의 변화 분석 - 서울, 대구를 중심으로 -
류지은,황진후,이준희,정혜인,이경일,최유영,주용언,성민준,장래익,성현찬,전성우,강진영,Ryu, Jieun,Hwang, Jinhoo,Lee, Junhee,Chung, Hye-In,Lee, Kyung-il,Choi, Yu-Young,Zhu, Yongyan,Sung, Min-Jun,Jang, Raeik,Sung, Hyun-Chan,Jeon, Seongwoo,Ka 대한원격탐사학회 2017 大韓遠隔探査學會誌 Vol.33 No.5
정부의 규제 및 정책은 무분별한 도시의 확장을 억제하는 중요한 수단이며, 이들의 기준에 따라 도시 공간의 확장으로 인하여 잠식되는 산림녹지의 증감이 뚜렷하기 때문에 본 연구에서는 우리나라에서 가장 대표적으로 고밀도 개발이 진행된 서울과 대구를 중심으로 '96년대부터 10년 단위로 도시의 확장에 따른 도시와 산림녹지의 변화를 정책 및 규제를 중심으로 해석하였다. 본 연구에서는 위성영상을 이용해 토지피복('96년, '06년대, '16년대)을 분류 후, 도시의 공간 확장 및 형태적 특징을 분석하기 위하여 도시확장강도지수(UEII)와 GUIDOS 프로그램을 이용하였으며, 이에 따른 산림녹지의 변화는 산림의 고도, 경사, 단일 산림패치의 면적을 기준으로 경년 변화를 분석하였다. 서울은 근교지역의 도시 공간 확장이 비교적 빠른 속도로 진행되고 있었으며, 이에 따른 산림 파편화가 발생하여 단일패치의 면적이 점차 감소하였다. 다만, 개발규제에 따라서 일정 기준 이상의 고도와 경사에서는 개발에 따른 면적감소가 거의 발생하지 않은 것으로 나타났으며, 규제 대상이 아닌 고도 및 경사의 산림은 등급 변화가 크게 나타났다. 대구는 '96년대 이후 도시 및 교외 지역이 느린 속도로 증가하였지만, '96년대부터 푸른숲가꾸기를 통해 산림녹지 면적이 크게 증가하는 양상이 나타났다. 이처럼 정부의 정책 및 규제에 따라서 개발에 따른 도시의 양적, 형태적 확장이 통제되고 산림녹지가 보존될 수 있기 때문에, 지속가능한 도시를 위하여 규제 및 정책을 적절히 활용해야 할 것이다. Government regulations and policies are important means of restraining the indiscreet expansion of urban areas. According to the standards from those means, it is clear that the fluctuation of forest green proportion encroached by the increase of urban space is obvious. In this study, we interpreted the changes of urban areas as well as the green ones owing to the urban expansion by the decades from 1996, with focusing on the cities of Seoul and Daegu highly developed in South Korea. The purpose of this study is to analyze the spatial expansion and morphological characteristics of urban land cover using not only satellite imageries (1996, 2006, 2016). but also the urban expansion intensity index (UEII) and GUIDOS program. Ultimately, this study is to compare the changes in the rate of forests due to urban expansions annually analyzed based on areas of forest elevation, slope, and the area of single forest patch. In Seoul, the expansion begun from urban space to suburban areas was comparatively rapid, which led the forest fragmentation and the gradual decline of the single patch. However, when it comes to DEM (Digital elevation model) and slope above a certain standard, by the development regulations, there was little decrease in area by anthropogenic developments. The city of Daegu has increased at a slow speed since 1996 in urban and suburban areas, whereas green forests have greatly increased through green forest conservation campaigns. In this way, as to the government policies and regulations, the quantitative and morphological expansion of cities owing to development could be controlled and forest spaces could be preserved as well. Therefore, regulations and policies by the government should be appropriately utilized for sustainable cities.
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환경영향평가 고도화를 위한 평가항목별 민원기반 데이터 수요 도출 연구
최유영 ( Choi Yu-young ),조효진 ( Cho Hyo-jin ),황진후 ( Hwang Jin-hoo ),김윤지 ( Kim Yoon-ji ),임노을 ( Lim No-ol ),이지연 ( Lee Ji-yeon ),이준희 ( Lee Jun-hee ),성민준 ( Sung Min-jun ),전성우 ( Jeon Seong-woo ),성현찬 ( Sung Hyu 한국환경복원기술학회 2021 한국환경복원기술학회지 Vol.24 No.6
Although the Environmental Impact Assessment (EIA) is continuously being advanced, the number of environmental disputes regarding it is still on the rise. In order to supplement this, it is necessary to analyze the accumulated complaint cases. In this study, through the analysis of complaint cases, it is possible to identify matters that need to be improved in the existing EIA stages as well as various damages and conflicts that were not previously considered or predicted. In the process, we dervied ‘complaint-based data demands’ that should be additionally examined to improve the EIA. To this end, a total of 348 news articles were collected by searching with combinations of ‘environmental impact assessment’ and a keyword for each of the six assessment groups. As a result of analysis of collected data, a total of 54 complaint-based data demands were suggested. Among those were 15 items including ‘impact of changes in seawater flow on water quality’ in the category of water environment; 13 items including ‘area of green buffer zone’ in atmospheric environment; 10 items including ‘impact of soundproof wall on wind corridor’ in living environment; 8 items including ‘expected number of users’ in socioeconomic environment, 4 items including ‘feasibility assessment of development site in terms of environmental and ecological aspects’ in natural ecological environment; and 4 items including ‘prediction of sediment runoff and damaged areas according to the increase in intensity and frequency of torrential rain’ in land environment. In future research, more systematic complaint collection and analysis as well as specific provision methods regarding stages, subjects, and forms of use should be sought to apply the derived data demands in the actual EIA process. It is expected that this study can serve to advance the prediction and assessment of EIA in the future and to minimize environmental impact as well as social conflict in advance.
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