• 한국조경학회지
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• 제52권2호
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• pp.79-95
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• 2024

본 연구의 목적은 생태적 기능이 크게 요구되는 보호지역의 도시하천에서 기후변화로 나타나는 야생조류 서식환경변화를 알아보고자 하였다. 앞으로 도시하천 생태계를 보호하고 생물다양성을 위한 지속가능한 도시하천의 건강성을 유지할 수 있는 관리지표로 활용되고자 하였다. 대상지로 선정한 탄천 생태·경관보전지역은 기후변화의 영향을 받고 있었다. 우리나라 사계절은 뚜렷한 온대성기후이나 서울 연평균기온은 40년간 2.4-2.8℃ 상승하였다. 겨울철기온이 점차 상승하는 경향이었다. 6-8월에 집중되었던 강수량은 현재는 국지성 집중호우와 여러 달의 균일한 강수 패턴으로 변하고 있었다. 기후변화는 불규칙적이고 비예측적으로 불확실한 특성을 보여주고 있다. 불확실성을 가진 기후변화는 도시 하천생태계에 다양한 영향으로 나타났다. 수면과 퇴적지 면적 감소는 하천 형태 변화와 육역화로 진행되었다. 식물은 교란과 식생 단순화로 나타났다. 국가 기후변화생물 지표종 출현, 외래목본식물 발달, 건조지성 자생초본식물종 변화와 습윤지성 식생이 발달되었다. 야생조류는 겨울철 여름철새의 출현, 철새의 텃새화로 나타났다. 또한 철새의 종 변화와 개체수 감소도 일어났다. 불규칙성과 비예측적 특성의 기온과 강수량 변동은 하천생태계를 연결하는 수문환경, 식물생태, 야생조류에 직·간접적 영향을 주고 있음이 판단되었다. 본 연구의 결과는 기후변화가 야생조류 서식환경에 어떤 영향을 주는지에 대해 분석하여 도시 내 환경·생태적 기능이 작동할 수 있는 하천 생태·경관보전지역 관리지표로 활용되고자 하였다. 향후 도시하천의 건강성 향상과 생물 다양성 기반조성을 위한 생태계서비스 차원의 기초연구로 참고할 가치가 높을 것으로 판단되었다.

• 대한공간정보학회지
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• 제21권4호
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• pp.135-142
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• 2013

본 연구에서는 고해상도 디지털항공사진영상과 항공 LiDAR 자료를 이용하여 생성된 고품질 3차원 공간정보인 스마트 공간정보를 도시 하천의 이수 및 치수 목적에 부합되는 친환경 생태학적 하천복원의 3차원 계획 및 설계에 적용시키는 최적화 방안을 모색하고 개발 전 후의 3차원 모델링을 통하여 하천복원 등에 관한 기초자료를 제공하고자 하였다. 또한 기존의 2차원 기반의 계획 및 설계 환경을 3차원 기반의 계획 및 설계 환경으로 전환하여 하천 분석의 정확도를 확보하고 하천복원에 따른 다양한 민원을 사전에 분석하고자 하였다.

• 환경영향평가
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• 제19권5호
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• pp.497-510
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• 2010

Considering to the geochemical behaviors and environmental changes of bottom sediments in streams, Gwangju metropolitan city, this study focuses to analyses on grain sizes, metal elements and organic carbons in sediment samples from Yeongsan and Hwangryong rivers, and Gwangju stream. In the sediments, contents of Cu, Zn, Pb, P and TOC were highly variable, in the case of Gwangju stream particularly. Yenogsan and Hwangryong rivers are influenced by grain sizes and surrounding geological settings and Gwangju stream is connected to organic matters related to life fouls and so forth, with respect to the geochemical behaviorof bottom sediments. Li, Zn, Pb and Cu were enriched in Yeongsan and Hwangryong rivers and Li, Cu, Zn, Pb and P enriched in Gwangju stream, respectively. In the heavy metal contamination of above drainages, the site mutually connected Seobang(GJ 4) with Donggye(GJ 7) streams shows the highest values, in peculiar. It is inferred that those contamination values are mainly related with urban foul waters in the city.

• 농촌계획
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• 제24권4호
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• pp.81-88
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• 2018

With the increase of the number of riverfront development projects an objective and systematized survey and assessment tool is required to understand and identify the characteristics and potentials of river environment for human uses. The purpose of this study was to develop an assessment system for the investigation and evaluation of the water-friendly environment and to examine its effectiveness by applying the system to the selected study sites. Literature reviews, expert consultation, and preliminary survey were conducted to select highly relevant indexes to evaluate water-friendliness in rivers and, as a result, an assessment system of ten items in four areas was established. The assessment system were applied to 139 reaches of six rivers including Bykgye Cheon, Seom River, Gap Cheon, Yudeng Cheon, Naesung Cheon, and Kumho River. The scores and grade of water-friendliness were calculated per rivers and reaches, and their differences were prominent according to urban river, rural river, mountainous area and city area. Bykgye Cheon and Naesung Cheon got high scores in visual quality and Kumho River and Gap Cheon in community needs and potential uses. The scores of each section in the same river can be used as a basic data for the selection of appropriate sites for the development of hydrophilic space. In addition, it is expected that identifying the characteristics of each river help establish an appropriate management plan for the river.

• 한국조경학회지
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• 제32권4호
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• pp.39-48
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• 2004

In the 1960s, polluted urban streams were covered and paved in concrete. Rivers became sewers buried under road. As a result, wildlife habitat was lost and the open stream space was gone. In the 1990s, there was a movement for restoring urban streams to enhance the quality of life of inhabitants. Chungkye Stream, whose covering began from early 1950s and ended in 1977, is now in the process of restoration together with the Central Business District (CBD) Redevelopment Plan. However, as the construction proceeds, several problems were raised, and serious controversies resulted. Therefore, this study aims to investigate the validity of the approach of the Chungkye Stream Restoration Project through a literature survey and a site survey, and to present the improved alternative. Ultimately, the study aims to contribute to present references or guidelines for similar urban stream restoration projects. The Chungkye Stream Restoration Project has some of the following problems. First, the construction should be done based on the long-term urban redevelopment plan. Second, the construction period should be extended to restore urban streams. Third, the cultural asset conservation plan should be implemented. In order to fulfill the anticipated purpose, the above mentioned problems need to be solved.

• 농촌계획
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• 제8권2호
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• pp.50-56
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• 2002

In 1980s, studies on the river environment and the management techniques to maintain the quality of water achieved actively. From the beginning of 1990s, the concept considering the river ecology and conservation in urban area have been introduced in Korea. Recently, some environment friendly projects on the rivers have been executed and some are under way. Many small rivers in rural areas have been maintained considering landscape and partly ecology. However until the pilot project named Songsam drainage channel project started in 1998, there were no studies and projects on the irrigation and drainage channels considering environment friendly maintenance. Korea Agricultural and Rural Infrastructure Corporation (KARICO) is going to introduce environment friendly and naturally favorable maintenance technique when the new projects to reform the irrigation and drainage channels are planned. Irrigation channel in O-dong project site in Yeomsan-myeon, Younggwang-gun was designed considering environment friendly consolidation and maintenance.

• 한국방재학회:학술대회논문집
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• 한국방재학회 2007년도 정기총회 및 학술발표대회
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• pp.599-602
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• 2007

Flood damage has been increased due to abnormal climate and extreme rainfall. Especially, the increase of impervious areas and the decrease of flow travel times due to the urbanization have been caused heavy division of flood with the recent rainfall characteristics. In this study, hydrodynamics flow analysis has been needed two dimensional numerical analysis for correct stream flow interpretations on bridges as hydraulic structures in rivers. Therefore, comparative analysis has been accomplished by using HEC-RAS model and SMS-RMA2 model for one and two dimensional flow. Also, flood characteristics have been analyzed in urban stream basin.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1999년도 Proceedings of International Symposium on Remote Sensing
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• pp.405-410
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• 1999

Topographic maps can be made and updated with satellite images, but it requires many human interactions that are inefficient and costly. Therefore, the automatizing of the road extraction procedures could increase efficiency in terms of time and cost. Although methods of extracting roads, railroads and rivers from satellite images have been developed in many studies, studies on the road extraction from satellite images of urbanized area are still not relevant, because many artificial components In the city makes the delineation of the roads difficult. So, to extract roads from high resolution satellite images of urbanized area, this study has proposed the combined use of wavelet transform and multi-resolution analysis. In consequence, this study verifies that it is possible to automatize the road extraction from satellite images of urbanized area. And to realize the automatization more completely, various algorithms need to be developed.

• 정보학연구
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• 제10권2호
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• pp.1-9
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• 2007

This study analyzed major cities of Chung-cheong area in Korea, -Daejeon($36^{\circ}11'{\sim}36^{\circ}30'\;N$, $127^{\circ}15'{\sim}127{\circ}34'\;E$), Chungju($36^{\circ}54'{\sim}37{\circ}02'\;N$, $127^{\circ}52'{\sim}128^{\circ}02'\;E$), and Cheongju($36^{\circ}34'{\sim}36^{\circ}44'\;N$, $127^{\circ}22'{\sim}127^{\circ}34'\;E$)- their characteristics as a Information Site. The geology map, a summit level map, and a drainage network map are created and analyzed the Site. The results are as follows : First, the geology of these cities are related with the shapes and the characteristics of the inner basins. The relief of inner basin determines by the characteristics of the bedrocks. Second, the major cities are close to rivers and the size of the granite & alluvium area influences the relief energy of the urban areas. Finally, the drainage networks explains the process involved in forming the basin and development of urban area.

• 한국조경학회지
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• 제30권5호
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• pp.98-106
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• 2002

This study was designed to present a river model with the aim of restoring the ecosystem and improving the landscape along the urban rivers on the basin of the Namhanl river, a core life channel for the National Capital regin. The revelation of botanical status, transition trend and correlation of plants might lead to providing the urban river restoration projects and ecological river formation projects with basic data for a model of ideal aquatic ecology and landscape. The outcomes of this study could be summed up as follows: 1. The plant communities of river flora found on the basin of the Namhan river could be categorized largely into 39 plant communities 2. Most diverse plants were distributed in the rivers lower reaches such as Unsim-ri where the protected zone of Paldang reservoir for city water borders the body of Jodae swamp where natural streams flow nearby. 3. One of the greatest threats to the biomass of the River Namhan is that the communities of such invasive alien plants as Panicum dichotomiflorum and Ambrosia artemisiifolia var. elatior dominate most parts of the area, a fact that has resulted in a reduced variety of plants and will, sooner or later, be likely to cause an ecological imbalance in the hitherto healthy Aquatic plant life. It is highly advisable to gradually diversify the species of trees and to return the plants bark to their original state since, besides the naturalized plants, plantations afforested with Erigeron canadensis and Erigeron annuus stocks in buckwheat field, Robinia Pseudo-accacia in riverside forest, Pinus rigida in terrestrial forest on the river basin and Larix leptolepis are anticipated to act as interceptors of normal migrations of the fluvial and terrestrial ecosystems. Finally, it seems also desirable to continue to explore the relationship between fluvial and terrestrial ecologies with the purpose of building up a model of natural streams in urban areas based on the surveyed factors for plant life, soil and landscape and, moreover, on the forecasting for overall influences derived from the rotation upon the ecosystem.