• Journal of the Korean Association of Geographic Information Studies
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• v.16 no.2
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• pp.30-46
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• 2013

Using ArcGIS Model Builder, with emphasis on the importance of ecology and user friendliness, a model for site selecting tool is developed. This tool is developed by establishing standardized method for data selection and analysis with evaluation criteria using GIS. For this task, our first action was to objectively define and establish 18 elements to evaluate the potentiality of the site based on extensive literature reviews. These 18 elements reflect environmental, social/cultural and legal aspects that may influence the decision process to select the desired site. Secondly, using ArcGIS Model Builder, 18 analytical elements were made into thematic mapping which represent systematically organized graphic input to the model with automatic double check system and overlay analysis capability. Thirdly, to validate the effectiveness of the developed model, site location analysis was performed using the actual site, Buk-ku, Pohang.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.477-477
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• 2022

환경문제가 사회적으로 크게 대두되면서, 환경 보전 및 복원에 대한 국민들의 관심이 높아졌다. 특히 하천의 경우, 시민들의 레저 활동 및 휴식을 위한 공간으로도 활용되고 있어 청정한 환경 유지를 위한 노력이 필요하다. 하천의 생태기능은 하천에서 살아가는 각종 생물의 서식 조건을 유지함으로써 하천이 환경적으로 건강한 상태를 유지하도록 하는데 매우 중요한 역할을 한다. 우리나라는 70년대 이후부터 오염물질로부터의 수량 보장 등의 목적으로 하천 유지유량을 설정하여 관리하고 있다. 최근에는 이러한 단순 수질 환경 및 물수요의 충족을 위한 취수량 확보 목적을 넘어 수생태계 보호를 위한 유량인 환경생태 유량의 확보가 중요한 문제로 대두되고 있다. 일반적으로 생태계 기능을 보존하는데 필요한 최적 또는 최소 유량에 대한 평가는 다양한 종의 어류에 대한 하천의 유량과 서식지 가용성 사이의 관계를 정의하는 서식지 기반 모델에 의해 수행되어왔으며, 이를 위해서 우선적으로 하천 단면에 대한 수위, 유량, 지반고 등의 하천 고유 특성에 대한 정보를 필요로한다. 이에 본 연구는 생태유량 산정에 앞서 HEC-RAS(하천 분석 시스템)를 이용하여 한강권역내 생태유량 산정을 위한 취약지역 3지점에 대한 하천 단면 정보에 대한 분석을 진행하였다. 본 연구 결과는 한강권역 환경생태유량 산정 및 하천 관리를 위한 기초자료로 활용할 수 있을 것이다.

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2003.09a
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• pp.91-96
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• 2003

생태/농업모형의 적용범위는 대체로 기후, 토양 등 환경조건이 동일한 실험포장이거나 한 개 기상관측소가 대표할 수 있는 지역으로 제한되므로, 넓은 지역에 걸쳐 생태계 반응의 공간변이를 알아내기 위해서는 지리정보시스템 (geographic information system: GIS)과의 결합이 불가피하다. GIS는 불규칙하게 분포된 토양조사 및 기상관측자료로부터 규칙적인 격자단위의 자료평면을 생산 할 수 있도록 해주며, 이들을 공간적으로 연결함으로써 효율적으로 저장, 관리할 수 있도록 해 준다.(중략)

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.268-270
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• 2005

본 논문의 목적은, 간단한 DNA를 기반으로 서로 상호 작용하는 인공미생물체를 위한 진화생태계를 구성하는 것이다. 여기서, 강화 신호를 사용한 신경 회로망의 학습을 통해 인공미생물체의 지능 린 진화과정을 모방해서 자신의 DNA 및 주변 환경에 따라 행동 패턴이 변화하도록 하였다. 또한, 미생물의 진화론적 관점에서 생식 과정에서 두 개체산의 유전자 교환 등이 일어날 수 있도록 하였다. 그리고 이렇게 만들어진 진화생태계의 응용 가능성에 대해 다룬다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10a
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• pp.73-75
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• 2003

게임 세계에 존재하는 수많은 보이드들의 지능적인 집단 행동을 모델링하기 위한 방법으로 플로킹 기법이 많이 사용되고 있다. 특히 생태계에 존재하는 객체들의 행동을 재현하기 위한 연구가 활발하게 진행되고 있는 실정이다. 따라서 본 연구에서는 생태계에서 흔히 볼 수 있는 먹고 먹히는 관계를 퍼지 논리를 통해 게임의 보이드 행동을 모델링하고 구현한다.

• Journal of the Korean Association of Geographic Information Studies
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• v.4 no.3
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• pp.1-12
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• 2001

This thesis represents the integrated 3D DEM using both the process of satellite image and the real value of topographic maps. This DEM is draped on satellite image processed to improve representations of the real world. The 3D visualization and 3D animation with satellite imagery data enables to depict more vivid and realistic world. The paper also describes and implements the natural environmental/ecological information system that consists of 7 modules to manage environmental data systematically through an enhanced user interface. We make use of topographic map, satellite imagery data and several thematic maps. Each module has a user interface enabling to assist particular needs of decision-making for ecological/environmental assessments associated with spatial analysis of ecosystem and classification of the environmental status quo and other purposes.

• Korean Journal of Environmental Biology
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• v.38 no.4
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• pp.554-562
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• 2020

Tremex fuscicornis (Siricidae), known as the xylophagous horntail, and Leucospis japonica (Leucospidae), known as the parasitoid wasp, are wood-boring wasps belonging to the order Hymenoptera. These insects are interesting sources of biological inspiration for the development of drilling mechanisms. To study the biomimicry aspects, the morphological characters of the ovipositor of T. fuscicornis and L. japonica were analyzed using a stereoscopic microscope, a field emission scanning electron microscope, and an optical microscope. There were many differences in the ovipositors between the two species, such as shape, length, surface structure, and arrangement of the teeth. Evenly arranged teeth were developed at the tip of both the dorsal valve and the ventral valve of the ovipositor of T. fuscicornis and looked like a rotating drill bit. In contrast, in L. japonica, the teeth, which looked like a saw, were found only on the ventral valve. Moreover, the tip of the ovipositor of T. fuscicornis was symmetrically divided into four parts, while that of L. japonica was divided into three parts having a 2:1:1 ratio. However, in the case of T. fuscicornis, after the 14th tooth, four parts melded into three parts maintaining a 2:1:1 ratio, and a dovetail joint was found on the horizontal cross-section of the ovipositor that allowed vertical movement for making a hole. These morphological differences of the ovipositor may be due to the insects' lifestyles and phylogenetic distance. Finally, zinc was commonly found at the tip of the ovipositors of both species, a probable result of ecological adaptation created by drilling wood.

• Journal of Wetlands Research
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• v.25 no.4
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• pp.394-407
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• 2023

Ecological restoration is an ecological technology that diagnoses problematic ecological spaces and restores the damaged ecosystem to a healthy appearance similar to its original appearance based on reference information obtained by analyzing intact nature. To achieve successful restoration, the project must be carried out in respect of a series of procedures. However, in Korea, restoration projects are usually actively promoted regardless of diagnostic evaluation, which wastes cost and energy, and the effect is not significant. As the reference information is not utilized, ecological restoration to return the damaged nature makes features different greatly from the appearance of nature, causing another damage. As the restoration effect is not evaluated, it is impossible to determine whether it is successful or not, and as a result, even if the project continues, there is no development and no effect. However, advanced societies have not only made academic progress by respecting these procedures but also have great economic effects along with the improvement of environmental conditions as ecological restoration has become an industry. Therefore, the international society recognizes ecological restoration as an important means of solving environmental problems at the global level, including climate change, and international organizations are actively promoting projects to treat the injured planet. However, most of the restoration projects promoted in Korea were evaluated below the level as a result of the evaluation of the effect. Nevertheless, those who have led low-quality projects are blocking plans to establish ecological restoration as a new industry that can contribute significantly to improving these levels, and thus the problem is expected to worsen. To solve this problem, it is necessary to filter out defective businesses by introducing a strict and correct project evaluation system by dividing it into before and after. Furthermore, it is necessary to establish ecological restoration as an industry and leave the process in the principles of the market.

• Bulletin of Korea Environmental Preservation Association
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• s.384
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• pp.34-35
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• 2009

환경보전협회가 2004년 한강수계관리위원회로부터 역무대행기관으로 지정된 이후, 생태탐방 프로그램을 성공적으로 운영

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2004.03a
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• pp.287-288
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• 2004