• 제목/요약/키워드: Biodiversity Information

검색결과 285건 처리시간 0.024초

의사결정나무 변수 선정 방법을 적용한 대축적 생물다양성 지도 구축 (Mapping Biodiversity throughoptimized selection of input variables in decision tree models)

  • 김도연;허준;김창재
    • 환경영향평가
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    • 제20권5호
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    • pp.663-673
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    • 2011
  • In the face of accelerating biodiversity loss and its significance in our coexistence with nature, biodiversity is becoming more crucial in sustainable development perspective. To estimate biodiversity in the future which provides valuable information for decision making system especially in the national level, a quantitative approach must be studied forehand as a baseline of the present status. In this study, we developed a large-scale map of Plant Species Richness (PSR, typical indicator of biodiversity) for Young-dong and Pyung-chang provinces. Due to the accessibility of appropriate data and advance of modelling techniques, reduction of variables without deteriorating the predictive power is considered by applying Genetic algorithm. In addition, a number of Correctly Classified Instances (CCI) with 10-fold cross validation which indicates the predictive power, was carried out for evaluation. This study, as a fundamental baseline, will be beneficial in future land work as well as ecosystem restoration business or other relevant decision making agenda.

산림조성을 기반으로 한 기업의 생물다양성 보전 활동 분석: KT&G의 사례를 중심으로 (Evaluating Biodiversity Conservation Activities by Corporations Based on Afforestation: KT&G)

  • 김건희;조유라;이재혁;옥용식
    • 한국환경과학회지
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    • 제33권6호
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    • pp.345-353
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    • 2024
  • As biodiversity loss has been highlighted as a global risk, biodiversity activities are gaining attention as a part of companies' Environmental, Social, and Governance (ESG) related management. This study evaluates various biodiversity activities of corporations based on domestic and international indicators. We present the role of corporations expressly in afforestation activities and suggest additional information that should be disclosed for the accurate verification of environmental values by third parties. KT&G was selected as the subject of the evaluation. The 4th National Biodiversity Strategy was used as a domestic indicator, and GRI Standard 304 as an international indicator. Companies can play a leading role in planning, implementing, and monitoring afforestation activities and should further disclose the species composition of the forests created and the age of the seedlings to enhance the credibility of the environmental values stated in their sustainability reports.

지리산의 생물다양성 보전에 대한 지불의사 추정: 지리산 방문객을 대상으로 (Estimating Willingness to Pay for Biodiversity Conservation in Mt. Jiri: Focusing on Visitors to Mt. Jiri)

  • 박소희;윤여창
    • 한국산림과학회지
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    • 제108권1호
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    • pp.77-87
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    • 2019
  • 국가 생물다양성 전략에 따른 보호지역의 확대는 생물다양성 보전에 기여하는 반면에 지역주민들에게 다양한 경제적 피해를 발생시킨다. 이에 보호지역 지정으로 인한 지역주민의 피해를 보상할 수 있는 지속가능한 방안으로서 생태계서비스지불제의 필요성이 제기되었다. 이 연구에서는 보호지역의 확대를 통한 생물다양성 보전으로부터 국민들이 얻는 편익을 추정하여 생태계서비스지불제의 시행가능성을 검토하기 위해 지리산 방문객을 대상으로 CVM을 이용하여 지리산의 생물다양성 보전에 대한 지불의사액을 추정하였다. 방문객들은 생태경관보전지역을 확대하여 지리산의 생물다양성을 증진시키는 데 연간 가구당 16,103원의 지불의사가 있는 것으로 나타났고, 이를 전체 가구로 확대한 지리산 생물다양성의 총 보전가치는 연간 3,168억 원으로 추정되었다. 방문객들은 연령, 교육수준, 가구소득이 높을수록, 지리산이 생태경관보전지역으로 지정되어 있다는 사실을 사전에 인지한 경우, 생물다양성 보전 정책이 중요하다고 생각할수록 생물다양성 보전에 대한 지불의사가 있는 것으로 나타났다. 이에 생태계서비스지불제의 시행가능성을 높이기 위해서는 생물다양성 교육과 정책 홍보를 통해 국민들의 생물다양성에 대한 지식과 인식을 높이는 것이 필요하다.

Development of DNA Barcode Database and Identification System of Forest Mushrooms in Korea

  • Han, Sang-Kuk;Jo, Jong Won;Kim, Chang Sun;Kwag, Young-Nam;Sung, Gi-Ho
    • 한국균학회소식:학술대회논문집
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    • 한국균학회 2014년도 춘계학술대회 및 임시총회
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    • pp.17-17
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    • 2014
  • Over five thousand higher fungal specimens were collected from 32 forest areas of Chungcheong and Gyeongsang province from 2012 to 2013. We obtained 513 strains and 3,120 ITS sequences. Mushrooms were first identified with macro- and micro-scopic characters, and their identification was confirmed on the basis of ITS sequences. Voucher specimens were designated for each species found in Korea. Construction of DNA barcoding Database is currently underway with sequences of 409 species. During the development of the database, some new species were recognized, along with several Korean new records. When the system has been completed, it will provide essential molecular information for metagenomic and phylogenetic researches for higher fungi.

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도시생태계 내 조류 종풍부도 증진을 위한 인간영향 및 교란가능성의 반영 (Consideration of human disturbance to enhance avian species richness in urban ecosystem)

  • 김윤정
    • 한국환경복원기술학회지
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    • 제24권5호
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    • pp.25-34
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    • 2021
  • Increase in avian species richness is one of the important issues of urban biodiversity policies, since it can promote diverse ecosystem services such as seed dispersal, education, and pollination. However, though human disturbance can significantly affect avian species richness, there are limited studies on the way to reflect the dynamics of floating population. Therefore, this study analyzed the spatial relationship between avian species richness, floating population, and vegetation cover using telecommunications information to identify the areas that requiring targeted monitoring and restoration action. Bivariate Local Moran's I was applied to identify LISA cluster map that showing representative biotopes, which reflect significant spatial relationship between species richness and population distribution. Edge density and distribution of ndvi were identified for evaluating relative adequacy of selected biotopes to strengthen the robust biodiversity network. This study offers insight to consider human disturbance in spatial context using innovative big data to increase the effectiveness of urban biodiversity measures.

Data Base on Resources of Mushrooms in Korea

  • Cho, Duck-Hyun;Cho, Won-Kyung
    • Plant Resources
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    • 제4권3호
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    • pp.153-156
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    • 2001
  • Today information is important for man and total fields. Science field is not exception. Currently information age things of information is only useful for man and total industry. So bioinformation is necessary of biodiversity in broadly wide and detailed information. Among information, bioinformation of biodiversity is important and utilization of living things. Among them, the mushroom(higher fungi) are an important part in ecosystem as a decomposer responsible for recycling materials. Many living things today, however, have endangered by environmental pollution and ecological destruction. The higher fungi also are not exception. Mushroom has been used for food sources, pharmacy and forests resources from ancient times. Among biodiversity, database of mushroom is very necessary for university, institute and industry. This DB contains four items of native mushroom(higher fungi) from Korea. first item contain species, genus, family, order class, ad division according to the classification. Second item contain pharmaceutical purpose, food source, culture, toxic, anti-cancer of the application. Third item contain symbiosis, rotten trees of the ecological resources. Fourth item contain geographical distribution and illustrated literature. Information system is also available using KRISTAL II for searches on the WEB in URL http://ruby. kisti. re. kr/∼mushroom.

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Data Base on Resources of Mushrooms in Korea

  • Cho, Duck-Hyun;Cho, Won-Kyung
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2001년도 The 8th International Symposium
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    • pp.9-14
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    • 2001
  • Today information is important for man and total fields. Science field is not exception. Currently information age things of information is only useful for man and total industry. So bioinformation is necessary of biodiversity in broadly wide and detailed information. Among information, bioinformation of biodiversity is important and utilization of living things. Among them, the mushroom(higher fungi) are an Important part in ecosystem as a decomposer responsible for recycling materials . Many living things today, however, have endangered by environmental pollution and ecological destruction. The higher fungi also are not exception. Mushroom has been used for food sources, pharmacy and forests resources from ancient times. Among biodiversity, database of mushroom is very necessary for university, institute and industry. This DB contains four items of native mushroom(higher fungi) from Korea. first item contain species, genus, family, order class, ad division according to the classification. Second item contain pharmaceutical purpose, food source, culture, toxic, anti-cancer of the application. Third item contain symbiosis, rotten trees of the ecological resources. Fourth item contain geographical distribution and illustrated literature. Information system is also available using KRISTAL II for searches on the WEB in URL http://ruby. kisti. re. kr/~mushroom

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Biodiversity and Conservation of Indian Sheep Genetic Resources - An Overview -

  • Bhatia, S.;Arora, R.
    • Asian-Australasian Journal of Animal Sciences
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    • 제18권10호
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    • pp.1387-1402
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    • 2005
  • Indian subcontinent is a rich source of diverse ovine germplasm, and only very few countries have such a large number of breeds with wide genetic diversity. This vast ovine biodiversity in India is being eroded rapidly and more than 50% of sheep breeds are currently under threat. It is noteworthy that the characterization of Indian sheep breeds was last done in the first half of the century since then no recent estimates are available and surveys in majority of the regions/breeds are far from complete. Starting in 1985 National Bureau of Animal Genetic Resources (NBAGR), Karnal, India, therefore, initiated activities aimed at determining the status and compiling information on indigenous farm animals including sheep. This report represents attempts made to date on the basis of field/literature surveys and additional activities on molecular characterization to ascertain their status including distribution, population changes, breed diversities and risk status. The need, mode and mechanisms of conservation are also described. Involvement of several agencies for evaluation, improvement, conservation programmes and recommendations made for effective characterization and conservation of sheep biodiversity are highlighted. This publication would promote action particularly at national level to improve the information base on domestic Indian breeds of sheep and provide input into national domestic sheep diversity conservation policy decisions.

Predicting Tree Felling Direction Using Path Distance Back Link in Geographic Information Systems (GIS)

  • Rhyma Purnamasayangsukasih Parman;Mohd Hasmadi, Ismail;Norizah Kamarudin;Nur Faziera Yaakub
    • Journal of Forest and Environmental Science
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    • 제39권4호
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    • pp.203-212
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    • 2023
  • Directional felling is a felling method practised by the Forestry Department in Peninsular Malaysia as prescribed in Field Work Manual (1997) for Selective Management Systems (SMS) in forest harvesting. Determining the direction of tree felling in Peninsular Malaysia is conducted during the pre-felling inventory 1 to 2 years before the felling operation. This study aimed to predict and analyze the direction of tree felling using the vector-based path distance back link method in Geographic Information Systems (GIS) and compare it with the felling direction observed on the ground. The study area is at Balah Forest Reserve, Kelantan, Peninsular Malaysia. A Path Distance Back Link (spatial analyst) function in ArcGIS Pro 3.0 was used in predicting tree felling direction. Meanwhile, a binary classification was used to compare the felling direction estimated using GIS and the tree felling direction observed on the ground. Results revealed that 61.3% of 31 trees predicted using the vector-based projection method were similar to the felling direction observed on the ground. It is important to note that dynamic changes of natural constraints might occur in the middle of tree felling operation, such as weather problems, wind speed, and unpredicted tree falling direction.

Recent changes in the phytoplankton community of Soda Lake Chitu, Ethiopia, in response to some environmental factors

  • Demtew Etisa;Yiglet Mebrat
    • Fisheries and Aquatic Sciences
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    • 제27권1호
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    • pp.23-34
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    • 2024
  • While scientific information on the spatial variation of soda lake Microalgae is important to limnological studies, little information was reported from the Ethiopian Rift Valley Lake, Lake Chitu. This study aimed to understand the spatial distribution of the dominant Microalgae taxa in Lake Chitu, Ethiopia. The collection of samples and in situ measurements of some physico-chemical parameters were recorded at three sites for one cycle in November 2021. Fourteen species or genera of Microalgae were identified. Among those, Bacillariophyta were the most important with regard to species abundance and the rarest in species richness. Cyanophyta were the second-most important group in terms of species richness and rarity. Comparatively, all microalgae taxa were rare at both the anthropogenic areas (AA) and the flooding area (FA), which could be mainly due to intensive human and animal intervention and associated with extreme turbidity. Among Cyanophyta, Chroococcus minutus, Microcystis aeruginosa, and Spirulina platensis/fusiformis were predominant at both AA and FA, revealing their adaptation to less clear water and pollution. But S. platensis/fusiformis attained the highest abundance at the FA, indicating their preference for water in a highly nutrient-enriched area. We concluded that the spatial variation of microalgae diversity in relation to water quality parameters has implications for the importance of microalgae as a baseline indicator of water quality assessment tools in lakes.