• 대한원격탐사학회지
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• 제22권5호
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• pp.445-449
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• 2006

Diffuse pollution has been considering as a major source of the quality deterioration of water resources. The establishment of riparian vegetation strips or buffers along those areas of water bodies is used to reduce the threat of diffuse pollution. Remote sensing offers a means by which critical areas could be identified, so that subsequent action toward the establishment of riparian zones can be taken. On the behalf of KOMPSAT-2 satellite imagery as a high resolution spatial data, Landsat TM satellite data are used to aquire the land cover for the riparian buffers studied. This investigation aims to assess the riparian buffers established on the upper Geum river as a pollution mitigation. Through comparing the delineation of riparian buffer zones developed with the existing zones established by the government, we can find the critical distortion points of the existing riparian buffer zone.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.436-440
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• 2006

Diffuse pollution has been considering as a major source of the quality deterioration of water resources. The establishment of riparian vegetation strips of buffers along those areas of water bodies is used to reduce the threat of diffuse pollution. Remote sensing offers a means by which critical areas could be identified, so that subsequent action toward the establishment of riparian zones can be taken. Even though the principal purpose of this research comes from the feasibility of the imagery of KOMPSAT-2 satellite, Landsat TM satellite data, which has 7 bands, are used to characterize the land cover for the study area on the behalf of KOMPSAT-2. This investigation focuses on the assessment of the existing riparian buffer zones for a portion of the upper Geum river watershed from the viewpoint of pollution mitigation by riparian vegetation strip establishment. Through comparing the delineation of riparian buffer zones developed with the existing zones established by the government, we can find the critical distortion points of the existing riparian buffer zone.

• 한국환경복원기술학회지
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• 제17권4호
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• pp.29-41
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• 2014

The Korean government has purchased land properties alongside any significant water bodies before setting up the buffers to secure water qualities. Since the annual budgets are limited, however, there has always been the issue of which land parcels ought to be given the priority. Therefore, this study aims to develop efficient mechanism for land acquisition priorities in stream corridors that would ultimately be vegetated for riparian buffer zones. The criteria of land acquisition priority were driven through literary review along with experts' advice. The relative weights of their value and priorities for each criterion were computed using the Analytical Hierarchy Process(AHP) method. Major findings of the study are as follows: 1. The decision-making structural model for land acquisition priority focuses mainly on the reduction of non-point source pollutants(NSPs). This fact is highly associated with natural and physical conditions and land use types of surrounding areas. The criteria were classified into two categories-NSPs runoff areas and potential NSPs runoff areas. 2. Land acquisition priority weights derived for NSPs runoff areas and potential NSPs runoff areas were 0.862 and 0.138, respectively. This implicates that much higher priority should be given to the land parcels with NSPs runoff areas. 3. Weights and priorities of sub-criteria suggested from this study include: proximity to the streams(0.460), land cover(0.189), soil permeability(0.117), topographical slope(0.096), proximity to the roads(0.058), land-use types(0.036), visibility to the streams(0.032), and the land price(0.012). This order of importance suggests, as one can expect, that it is better to purchase land parcels that are adjacent to the streams. 4. A standard scoring system including the criteria and weights for land acquisition priority was developed which would likely to allow expedited decision making and easy quantification for priority evaluation due to the utilization of measurable spatial data. Further studies focusing on both point and non-point pollutants and GIS-based spatial analysis and mapping of land acquisition priority are needed.

• 한국물환경학회지
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• 제38권4호
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• pp.177-189
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• 2022

Nature-based Solutions (NbS) are defined as practical and technical approaches to restoring functioning ecosystems and biodiversity as a means to address socio-environmental challenges and provide human-nature co-benefits. This study reviews NbS-related literature to identify its key characteristics, techniques, and challenges for its application in climate-adaptive water management. The review finds that NbS has been commonly used as an umbrella term incorporating a wide range of existing ecosystem-based approaches such as low-impact development (LID), best management practices (BMP), forest landscape restoration (FLR), and blue-green infrastructure (BGI), rather than being a uniquely-situated practice. Its technical form and operation can vary significantly depending on the spatial scale (small versus large), objective (mitigation, adaptation, naturalization), and problem (water supply, quality, flooding). Commonly cited techniques include green spaces, permeable surfaces, wetlands, infiltration ponds, and riparian buffers in urban sites, while afforestation, floodplain restoration, and reed beds appear common in non- and less-urban settings. There is a greater lack of operational clarity for large-scale NbS than for small-scale NbS in urban areas. NbS can be a powerful tool that enables an integrated and coordinated action embracing not only water management, but also microclimate moderation, ecosystem conservation, and emissions reduction. This study points out the importance of developing decision-making guidelines that can inform practitioners of the selection, operation, and evaluation of NbS for specific sites. The absence of this framework is one of the obstacles to mainstreaming NbS for water management. More case studies are needed for empirical assessment of NbS.

• 환경정책연구
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• 제4권2호
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• pp.31-55
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• 2005

우리나라 농촌마을의 당산숲 마을숲은 하천변에 위치한 수변림(Riparian buffers)으로서, 하천통로에 연결된 녹지 패치이다. 당산숲 마을숲은 약 $400{\sim}500$년 전에 마을주민들이 자연재해 예방 등의 목적을 위해 하천변에 인공적으로 심은 나무로 이루어져 있다. 당산숲 마을숲은 그 동안 많이 훼손되고 소실되어 그 실체가 도시민 등 많은 사람들에게 그 실체와 가치가 잘 인식되어 있지 않다. 이 논문은 하천경관으로서 당산숲 마을숲이 갖고 있는 경관생태적 기능과 역할 제고 방안을 찾고자 한 것으로 첫째, 국내외 자연형 하천관리 및 당산숲 마을숲의 특성, 둘째로 당산숲 마을숲과 하천의 상관관계, 셋째로 하천경관으로서 당산숲 마을숲의 기능 고찰 및 역할 제고의 내용으로 구성되었다. 자연형 하천 관리에서 외국의 사례는 유럽 등을 살펴 보았고, 국내의 자연형 하천관리 시책으로는 건설교통부의 '친환경 하천정비 기본계획 수립지침'(2005), 환경부의 '하천복원 가이드라인'(2002), 행정자치부의 '소하천정비 종합계획'을 고찰하였다. 당산숲 마을숲과 하천의 상관관계에서는 하천의 저서성대형무척추동물과 수질을 측정하였는데, 통계패키지 SPSS 12.0을 사용하여 유의수준 10%를 기준으로 분산분석한 결과, 출현종(군)의 수, GPI(군오염지수), DO, 수온, pH, EC, BOD, COD, SS, T-N, T-P 등 모두 11개의 조사항목 중 출현종(군)의 수, GPI, DO, EC, BOD, SS등 여섯 항목에서 숲의 유무에 의한 차이만 유의성이 인정되었다. 당산숲 마을숲의 기능 고찰 및 역할 제고에서는 먼저, 선진 외국에서 수변완충녹지의 기능을 어떻게 이해하며 중시하고 있는가를 살펴본 후, 우리나라 당산숲 마을숲이 갖고 있는 수변림으로서 특성과 기능을 파악하고자 하였으며 역할 제고에 대하여 고찰하였다. 결론으로, 수변경관으로서 당산숲 마을숲의 기능 역할 제고를 통해 우리나라 현실에 근거한 '한국형 하천경관 관리 방안'을 제시하였다.