• 한국조경학회지
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• 제32권4호
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• pp.28-38
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• 2004

Korean goral (Nemorhaedus caudatus raddeanus) is one of the endangered species in Korea, and the rugged terrain of the Soraksan National Park (373㎢) is a critical habitat for the species. But the goral population is threatened by habitat fragmentation caused by roads and hiking trails. The objective of this study was to develop a potential habitat suitability model for Korean goral in the park, and the model was based on the concepts of fuzzy set theory and multi-criteria evaluation. The process of the suitability modeling could be divided into three steps. First, data for the modeling was collected by using field work and a literature survey. Collected data included 204 points of GPS data obtained through a goral trace survey and through the number of daily visitors to each hiking trail during the peak season of the park. Second, fuzzy set theory was employed for building a GIS data base related to environmental factors affecting the suitability of the goral habitat. Finally, a multiple-criteria evaluation was performed as the final step towards a goral habitat suitability model. The results of the study were as follows. First, characteristics of suitable habitats were the proximity to rock cliffs, scattered pine (Pinus densiflora) patches, ridges, the elevation of 700∼800m, and the aspect of south and southeast. Second, the habitat suitability model had a high classification accuracy of 93.9％ for the analysis site, and 95.7％ for the validation site at a cut off value of 0.5. Finally, 11.7％ of habitatwith more than 0.5 of habitat suitability index was affected by roads and hiking trails in the park.

• 한국조경학회지
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• 제32권6호
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• pp.23-35
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• 2005

Korean goral (Nemorhaedus caudatus raddeanus) is an endangered species in Korea, and the rugged terrain of the Sorksan National Park $(373km^2)$ is a critical habitat for the species. Since the goral population is threatened by habitat fragmentation, it is essential to establish a reserve for the isolated goral population. The objective of this study was to propose a reserve for Korean goral in the national Park We employed habitat suitability model, habitat capability model, and the concept of minimum viable population. The results of the study were as follows. First, the carrying capacity and optimal density of gorals in the national park were projected to be 449 gorals, and 251 gorals, respectively Second, since only one patch was projected to satisfy the criteria of minimum viable population (50 individuals/during 50 years), the long term extinction possibility of gorals in the site would be very high. Finally, the patch that satisfy the minimum viable population of goral was proposed as the core zone of the goral reserve and adjacent patches were included as buffer zones.

• 한국환경복원기술학회지
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• 제18권2호
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• pp.33-44
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• 2015

This study was performed to propose the site selection plan for the restoration of the target Narrow-mouth Frog(Kaloula borealis) habitat, and has developed the AHP model to select the optimal site for narrow-mouth frog habitat restoration on the basis of the narrow-mouth frog Habitat Suitability Index (HSI) items (factors and variables). The assessment areas were established by the narrow-mouth frog HSI factors such as space, feed, cover, water(breeding), threatening factors and others, and the sub-assessment items by each assessment area were established based on the narrow-mouth frog HSI variables. The weighting values of the assessment areas and items were calculated by the developed AHP method. The weighting values of the 5 assessment areas were arranged in order as cover(0.283), water(breeding)(0.276), feed(0.230), space(0.147), and threatening factor(0.064). The final weighting values of the 14 assessment items were arranged in order of height as low-rise grassland(0.190), soil quality(0.178), and stones and between the stones(0.105). The scoring criteria according to the assessment items and factors were marked and applied by equal intervals considering the criteria by HSI items of the narrow-mouth frog and finally the scoring criteria diagram has been proposed for the optimal site selection of the narrow-mouth frog habitat restoration.

• 한국환경복원기술학회지
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• 제22권2호
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• pp.59-71
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• 2019

This study was conducted to prioritize land purchase in Hwapocheon wetland protection area by reflecting the conservation value of wetlands considering HSI(Habitat Suitability Index) for flagship species. As a result of this study, the flagship species, Oriental White Stork and Been Goose, which can represent the Hwapocheon wetland protection area, were selected through selection criteria and expert feedback. Based on the habitat requirements of the selected flagship species, SI(Suitability Index) for the flagship species was reviewed and the conservation value of wetlands was assessed. The conservation value of the wetlands was divided into five grades from very high to very low. The areas with high conservation value were mainly distributed around wetlands and waters in upstream and downstream of Hwapocheon wetland protection area. The land purchase priorities were divided into five grades by overlapping the thematic maps of the conservation value of wetlands, the economics, and the urgency of restoration. The arable lands which can disrupt wetland ecosystems are analyzed as priority areas where priority purchasing is required. Relatively well-preserved wetlands and areas have low land purchase priorities. This study is meaningful in that biodiversity is considered in land purchase priorities.

• 한국물환경학회지
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• 제27권6호
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• pp.822-829
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• 2011

The purpose of the present study is to estimate the ecological instream flow for conservation and restoration of fish habitat in running water ecosystem which has very important status for stream environment. Estimation of the ecological instream flow in the present study was carried out by application of a two-dimensional depth averaged model of river hydrodynamics, River2D model. It can model fish habitat in natural streams and rivers and assess the quality of physical habitat accoriding to the species preferences for habitat suitability. Zacco platypus and Zacco temmincki were selected as target fish species in the study area of the Seomjin river. The Habitat Suitability Criteria (HSC) developed by Sung et al. (2005) were used for target fish species, life stages and habitat conditions in the study. Weighted usable area (WUA) was computed by the River2D model considering preferences of target fish species for velocity, depth, and channel substrate. The result revealed that the ecological instream flow of $10.0m^3/s$ is needed to maintain the target fish habitat at each life stage in the river.

• 한국환경복원기술학회지
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• 제18권3호
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• pp.109-118
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• 2015

This study was performed to propose the site selection plan for the restoration of the target Reeve's turtle (Maunemys reevesii) habitat and has developed the AHP model to select the optimal site for Reeve's turtle habitat restoration on the basis of the Reeve's turtle Habitat Suitability Index (HSI) items (factors and variables). The assessment areas were established by the Reeve's turtle HSI factors such as breeding space, feed, cover, water, threatening factors and others and the sub-assessment items by each assessment area were established based on the Reeve's turtle HSI variables. The weighting values of the assessment areas and items were calculated by the developed AHP method. The weighting values of the 5 assessment areas were arranged in order as breeding space(0.293), food(0.273), water(0.217), cover(0.113), and threatening factor(0.104). The final weighting values of the 17 assessment items were arranged in order of height as all kind of food(0.222), water depth(0.096), altitude of spawning ground(0.093). The scoring criteria according to the assessment items and factors were marked and applied by equal intervals considering the criteria by HSI items of the Reeve's turtle and finally the scoring criteria diagram as been proposed for the optimal site selection of the Reeve's turtle habitat restoration.

• 한국경제지리학회지
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• 제17권4호
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• pp.771-785
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• 2014

바다사막화 현상인 갯녹음이 심화됨에 따라, 바다숲 조성사업이 추진되고 있다. 그러나 조성지 선정과정은 행정적 편의성에 초점이 맞춰져 있으며, 입지적합성 분석 연구도 그 중요성에 비해 매우 제한적인 실정이다. 이에 본 연구는 생태학적 요구치, 해저지형, 인문 사회환경 등을 종합적으로 고려한 합리적인 바다숲 입지적합성 평가모델을 제안한다. 연구지역인 제주도는 우리나라에서 갯녹음 현상이 최초로 발견되었으며, 최근에는 연안 전역으로 확대되고 있기에 바다숲 조성이 우선적으로 필요한 곳이다. 서식지 평가법(HEP), 3D 공간보간법(kriging) 그리고 계층적 의사결정 과정(AHP)이 연구방법으로 활용되었다. 특히 해양공간의 특성을 반영하는 3차원 공간분석을 실시하여, 기존의 연구보다 현실적인 분석을 도모하였다. 분석결과, 조천연안이 서귀포 표선연안에 비해 입지적합성이 높은 것으로 평가되었다. 조천연안은 최대 61%의 감태 서식적합도를 나타냈으며, 해저지형 조건을 충족하였고, 인문 사회환경 기준에서도 우수한 평가를 받았다. 본 연구결과는 재정적으로 효율적인 바다숲 입지선정을 가능케 하고, 합리적인 입지를 통한 연안 생태계 복원 및 어촌계 활성화에 도움을 줄 것으로 기대한다.

• 한국수자원학회논문집
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• 제37권11호
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• pp.915-927
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• 2004

남한강 수계를 대상으로 대표 어종의 하천 어류 서식처 환경에 대한 서식처 적합도 기준을 작성하고, 어류 서식을 위한 최적유량의 산정방법을 확립하기 위하여, 생태학적 접근 방법 중 어류서식처 환경평가방법의 한가지인 점유량점증론적방법론(IFIM)의 물리적서식처모의시스템(PHABSIM)을 적용하여 어류서식처 보호 및 유지를 위한 최적유량을 산정하였다. 서식처 평가에 요구되는 수리인자의 모의를 위해 2차원 동수역학적 모델을 이용하였으며, 현장조사를 실시하여 대표어종으로 선정된 피라미의 단일변량곡선법을 적용한 서식처 적합도 기준을 작성하였다. 이러한 결과를 토대로 유황변화에 어류 서식환경이 가장 민감하게 반응하는 여울 구간과 여울이 형성되지 않음으로서 어류의 서식처 평가의 고려대상에서 제외되었던 본류 구간을 동시에 모의하여 상$\cdot$하류간의 수문학적 물질균형이 이루어짐을 확인할 수 있었다.

• 대한토목학회논문집
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• 제26권2B호
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• pp.153-160
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• 2006

본 연구에서는 한강 수계의 주요 지천별 어류 서식환경을 고려한 필요유량을 산정하기 위하여 어류서식처 환경평가방법의 한가지인 유지유량 증분 방법론(IFIM)을 적용하였으며 어류의 미시서식처 조건을 만족하는 적정 필요유량을 산정하기 위하여 물리적 서식처모의 시스템(PHABSIM)를 이용하였고, 어류의 거시서식처 조건을 만족하는 적정 필요유량을 산정하기 위해서 QUAL2E 모형에 의한 수질모의를 시도하였다. 물리적 서식처모의 시스템을 한강수계에 적용하기 위하여 구간별 대표 어종의 성장단계별 서식처 적합도기준(Habitat Suitability Criteria)을 현장조사에 의한 어류채집을 통하여 수심 및 유속에 대하여 각각 작성하였다. 유지유량 증분 방법론을 한강수계에 적용하는 과정에서 산정결과에 대한 토의와 함께 적용상의 문제점에 대하여 분석하였다. 본 연구결과는 향후 한강수계의 하천유지유량을 결정하는데 중요한 지표로 활용될 수 있을 것으로 판단된다.

• 환경생물
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• 제40권3호
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• pp.307-315
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• 2022

본 연구에서는 서식지 질적 평가에 대한 추진체계를 6단계로 구분하고, 평가 대상지 선정 방법과 서식지 질적 평가 항목을 제시하였다. 서식지 질적 평가 항목은 서식지의 건강성, 안정성, 단절화 및 파편화 정도, 서식지 적합성, 위협 정도 등에 대한 종합적인 평가가 가능하도록 구성되었다. 그러나 현시점에서는 자료부족으로 인하여 서식지 질적 평가 체계가 적용 가능한 멸종위기종이 극히 일부에 해당된다. 서식지 질적 평가 체계는 향후 멸종위기종들에 관한 서식환경자료가 축적되고 이를 기반으로 평가항목들에 대한 정량적 기준 및 가중치가 부여되면 멸종위기종별 주요 서식지에 대한 보전방안 마련에 크게 기여할 것으로 기대된다.