• 한국조경학회지
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• 제27권4호
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• pp.29-38
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• 1999

Present green space planning of Korea pay little attention to biodiversity conservation in urban areas. The quality of urban wildlife habitat has been deteriorated severely due to fragmentation and isolation of urban open spaces. The application of ecological corridors to urban green space planning and management can greatly enhance the bird habitat of Seoul. The objectives of this study were to evaluate bird habitat potential of existing urban parks of Seoul, and to investigate methods to develop ecological corridors for wild birds. This study consists of three parts. The first part is to construct bird species/habitat relationship model. The second part is to evaluate 207 urban parks of Seoul with the model. Based on the relative potential for bird habitat, urban parks of Seoul can be classified into cores, nodes, and points of the network. Outcomes of this part can also be used to enhance the quality of bird habitats by identifying limits or weakness of existing green spaces for bird habitat. The final part is to develop three green network plans; north-south network, the Han river network, and a district network for Kangnam-Gu.

• Water Engineering Research
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• 제2권1호
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• pp.33-48
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• 2001

For the design of suitable aquatic habitats and habitat management purposes, sensitive descriptors for aquatic areas were identified and analyzed. The classification system of the aquatic areas were developed for natural streams and modified streams in Korea. Relationships among the descriptors of an aquatic area such as channel width, meander wave length, and arc angle have been defined. The analysis indicates that the total mean sinuosity is 1.25 for the main channels of natural streams, whereas the mean value of the sinuosity of modified streams is 1.14. The mean values of the total area, the width, and the length for the sandbars of natural streams are larger than those of modified streams.

• 원예과학기술지
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• 제17권4호
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• pp.494-496
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• 1999

새우난초의 자생지 생태환경은 낙엽활엽수림대로 비자생지보다 여름철 기온이 낮고 강수량이 많았으며, 상태습도가 연중 75~90%로 고른 분포를 보였다. 새우난초의 자생분포에 가장 중요한 영향을 끼치는 환경요인은 광(光)이었는데, 낙엽이 지기 전까지는 수관에 의해 강한 광선이 차단되었고, 자생지의 온도가 낮아졌으며, 광도가 400~1,500lux에서 가장 많은 분포를 보였다. 낙엽이 진 겨울철에는 30,000~50,000lux의 광이 유입되어 자생지의 온도를 높여 새우난초의 월동이 가능하였다. 새우난초는 낙엽활엽수림대에 자생하여 여름철에는 강한 광선의 차단효과를 얻었고, 겨울철에는 광선의 유입을 도모하고 낙엽으로 인한 피복으로 보온효과를 얻은 것으로 사료되었다.

• 한국수산과학회지
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• 제52권6호
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• pp.656-665
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• 2019

Environmental monitoring was conducted to identify the characteristics and patterns of sedimentary environments of tidal flats in 12 areas on the west coast of Korea. The habitat of the mud shrimp Upogebia major contained higher organic and mud contents compared to the habitat of the manila clam Ruditapes philippinarum. In particular, the mud content increased from 84.38% to 89.18% in the Seongam-4 area, where the mud shrimp and manila clam coexist, and the mean grain size exhibited a finer particle size, from 5.48 Φ to 5.80 Φ. In the mud shrimp habitat, the sediment mud content was > 60% and the mean grain size was > 5 Φ. Additionally, the mud shrimp only inhabited open coast tidal flat areas. The management of shellfish aquaculture farms by physical methods should be continued based on comparison of the sedimentary environments in the Boryeong and Seongam areas in response to the damage to the mud shrimp habitat.

• 한국환경생태학회지
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• 제36권3호
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• pp.318-326
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• 2022

생물다양성협약(CBD)에서는 전 지구적으로 발생하는 환경문제의 대응방안으로 육상의 17%를 보호지역으로 지정하도록 할 것을 권고하고 있다. 우리나라도 국제적 수준에 맞춰 보호지역을 지정하고 보호지역 지정이 가지는 의미를 설명할 필요성이 생겼으며, 이에 따라 생태계서비스에 관한 연구의 필요성이 요구되고 있다. 우리나라는 보호지역 지정을 자연공원법에 의해 위계별로 국립공원, 도립공원, 군립공원으로 지정하고 있다. 그러나 정치, 행정적 측면이 우선시되면서 생태계서비스 가치평가 연구 및 서식지 관리가 국립공원에 편중되어 도립 및 군립공원은 다소 미비하여 연구의 필요성이 있다. 본 연구에서는 국립공원에 비해 서식지 관리 및 생태계서비스 가치평가 연구가 미비한 가지산도립공원을 대상으로 InVEST 모델 중 InVEST Habitat Quality 모델을 사용하여 서식지 질을 평가하고, 분석 결과를 16개의 산악형 국립공원과 비교하였다. 분석 결과 가지산도립공원의 서식지질 값은 0.83이었으며, 주변 지역에 비해 서식질 질이 높게 나타났다. 3개 지구별 서식지질 차이를 분석한 결과 통도사지구와 내원사지구가 0.84, 석남사지구가 0.83으로 나타났고 용도지구별로는 자연보존지구, 자연환경지구, 문화유산지구, 공원마을지구 순으로 서식지질 값이 높게 나타났다. 기존 국립공원 서식지질 분석 결과와 비교한 결과 가지산도립공원은 무등산국립공원 수준의 자연성을 나타내었다. 이러한 결과는 추후 도립공원의 생물다양성 보전 및 생태계서비스 증진을 위한 정책 수립과 관리방안 수립의 객관적인 자료로 활용될 수 있을 것이다.

• 한국환경복원기술학회지
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• 제16권5호
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• pp.39-47
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• 2013

The agricultural area is a priority to develop than the natural area for land developments. However, the importance of agricultural biodiversity is emphasized recently. The agricultural area does not only provide food for human and habitat for wild life but also contribute to improve biodiversity. It is necessary to preserve the agricultural area with rich biodiversity. The study was conducted to analyze biodiversity of insects for conservation value assessment of agricultural areas. According to the results of field survey, there is higher biodiversity index in agricultural areas surrounding the forest or small size agricultural areas. By contrast, the index is lower in agricultural areas near roads or in the intensive agricultural area. The results show that there is high biodiversity in agricultural areas, especially margin agricultural area such as below 2ha and over slop rate of 15%. Therefore, further studies should be conducted field survey more to generalize for biodiversity in agricultural area, and establish the criteria to protect agricultural area from land developments.

• Proceedings of the National Institute of Ecology of the Republic of Korea
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• 제4권2호
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• pp.79-85
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• 2023

The Tibetan Plateau is home to the only alpine crane species, the black-necked crane (Grus nigricollis). Conservation efforts are severely hampered by a lack of knowledge on the spatial distribution and breeding habitats of this species. The ecological niche modeling framework used to predict the spatial distribution of this species, based on the maximum entropy and occurrence record data, allowed us to generate a species-specific spatial distribution map in Ladakh, Trans-Himalaya, India. The model was created by assimilating species occurrence data from 486 geographical sites with 24 topographic and bioclimatic variables. Fourteen variables helped forecast the distribution of black-necked cranes by 96.2%. The area under the curve score for the model training data was high (0.98), indicating the accuracy and predictive performance of the model. Of the total study area, the areas with high and moderate habitat suitability for black-necked cranes were anticipated to be 8,156 km² and 6,759 km², respectively. The area with high habitat suitability within the protected areas was 5,335 km². The spatial distribution predicted using our model showed that the majority of speculated conservation areas bordered the existing protected areas of the Changthang Wildlife Sanctuary. Hence, we believe, that by increasing the current study area, we can account for these gaps in conservation areas, more effectively.

• 한국습지학회지
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• 제5권2호
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• pp.33-42
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• 2003

Habitat pattern and distribution of the water birds were analyzed along the Hyungsan River on nine sites during fifteen months from January 2001 to March 2002. Water birds including 16,186 individuals and 86 species in total were observed from all the surveyed sites at the downstream of the Hyungsan river. Site 5, which has been observed 4,669 individuals and 60 species of the birds, was the most favorite habitat for the water birds in the Hyungsan River. And the diversity of water birds from the Hyungsan river showed the fewest species and individual numbers of the water birds at the site 2 located at the estuary of the river and site 3, the small reservoir for filtering of the draining water from the industrial area. The similarity between habitats in the Hyungsan river was divided of three groups by the cluster analysis with the bird species and individual numbers such as coastal area, estuary sites, and rice paddy field areas.

• 한국환경생태학회지
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• 제37권2호
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• pp.140-150
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• 2023

수달(Eurasian otter, Lutra lutra)은 식육목 족제비과에 속하는 동물이다. 수달은 수계환경 먹이그물의 최상위에 존재하는 포식자로 핵심종(keystone species)이자 건강한 수계환경을 대변하는 지표종(Indicator species)이다. 현대에 이르면서 남획과 서식지 파괴, 환경 오염 등에 의하여 한강 도심 수계에서 사라졌지만, 2016년 다시 발견된 이후 2021년 1월에도 한강의 지류인 청계천, 중랑천과 성내천에서 서식함을 확인하였다. 수달의 서식지 보호와 관리 방안 수립을 위하여 잠재 서식지 평가가 시급하나, 기존의 수달 서식지 관련 연구는 자연형 하천과 저수지 위주로 이루어져 한강 도심 지류와 같이 좁은 공간에 인위적으로 한정된 서식지에 적용하기에는 한계가 있다. 본 연구에서는 인공하천인 청계천이 수달의 잠재 서식지로 적합한지를 서식지 적합성 지수(Habitat Suitability Index, HSI)를 활용하여 평가하였다. 서식지 적합성 지수는 수달의 서식 환경을 나타내는 지표, 먹이자원, 위협 요소 환경 특성을 종합하여 추정하였다. 그 결과 성북천과 청계천의 합류 지점과 청계천과 중랑천의 합류 지점이 적합한 서식지로 나타났다. 본 연구에서 추정한 HSI는 도심 하천의 수달 서식지 평가가 가능하였으며, 따라서 청계천을 포함한 한강 도심 지류에서의 효과적인 수달 모니터링과 수달 인공 서식지 장소 선정을 위한 기반 자료가 될 수 있을 것으로 판단된다.

• Journal of Ecology and Environment
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• 제33권1호
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• pp.3-13
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• 2010

The Tsushima leopard cat, Prionailurus bengalensis euptilurus, a small felid, inhabits only the Tsushima Islands in Japan. Previous studies of the Tsushima leopard cat revealed that natural factors; including sex, reproductive activity, season, and prey distribution and abundance affect leopard cat home range variation and habitat use. In this study, we focused on clarifying how anthropogenic factors influenced home range variation and habitat use of a male Tsushima leopard cat living near a suburban area in January, March, May and September 2005 using radio-tracking. The home range size (100% MCP) of this cat was $0.78\;{\pm}\;0.26\;km^2$ (mean ${\pm}$ SD, n = 4 tracking sessions) across the whole study period. However, the cat did not use all parts of its home range uniformly; rather it used some habitat types selectively. The cat avoided agriculture areas and residential areas in all of the tracking-sessions. On the other hand, the cat showed a weak preference for artificial structures and a strong preference for baiting sites in January and March, while it avoided them in May, and no baiting site was included in its home range in September. These results suggest that anthropogenic factors influenced the ranging patterns and habitat use of the leopard cat living near a suburban area. Artificial structures might provided good resting spaces for the cat in bad weather. When the density of its main prey was low in the winter, the cat tended to rely on artificial prey and had a small home range size.