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전숙례,장윤경 ( Sook Lye Jeon,Yoon Kyung Chang ) 한국하천호수학회 1993 생태와 환경 Vol.26 No.4
Staurastrum punctulatum var. pygmaeum (Bre´b.) West et West was collected and isolated from Kumkwang-reservoir in Korea for taxonomical study. In order to investigate the change in cell shape, size and ornamentation of the cell wall, the isolate was cultured under different pH, temperature and nutrient conditions. In addition to the original 3 radiate semicell type of S. punctulatum var. pygmaeum (Bre´b.) West et West, 4,5 and 6 radiate forms appeared abundantly as the culture aged. The cell size became smaller, the length of the cell became longer than the width and the granules on the cell wall became less prominant to approach its type species S. punctulatum Ralfs. The radiation type of the semicell was affected by the concentration of NO_3^- in the medium but pH and PO_4^3- did not affect the semicell type. The optimum pH and temperature for the growth of S. punctulatum var. pygmaeum (Bre´b.) West et West were pH 6 and 7, and 25˚C, Ultrastructure of the cell wall was stable when observed with SEM.
전숙례(Sook-Lye Jeon),김상길,박주현,고대헌,박성환,김상진,송여옥,최준길,양금철,심재한,김성환,박은진(Eun-Jin Park) 경기연구원 2008 위탁연구 Vol.2008 No.6
The purpose of this study was to suggest some policy alternatives for Gyeonggi Provincial Administration's strategies of preserving the wetland and water-front ecological resources at the estuary of Han River, while designing a continued monitoring plan for the region. This study was conducted for the period from December, 2007 through June, 2008. Upon reviewing the relevant literature and surveying the conditions of the wetland and water-front ecological resources, it was confirmed that the estuary of Han River should be valuable for the habitat of a variety of the birds visiting the estuary of the river, above all. The estuary of Han River provides for an important habitat for such migratory birds reputed highly to be preserved internationally as bean goose or the primary winter migratory bird as well as for such threatened birds as white-naped crane, Chinese goose and spoonbill. Hence, it is deemed urgent to explore the ways to effectively maintain, recover or use the wetland ecology at the estuary of Han River if we want to protect those valuable natural lifes. To this end, it is deemed essential to preserve and recover the habitat of the feed plants for those aqua animals by preventing the water-front wetland from becoming an earth and making use of the sea troughs, while maintaining the rice paddies as important feeding ground for the natural lifes and as back marshes checking the flood in order to secure a stable habitat and nest for the natural lifes in a longer term. In view of flora and vegetation, the reed stock occupying Janghang, Sannam and Siam-ri wetland widely must be valuable as a fine view. However, excessive multiplication of the species might result in preventing the migratory birds from inhabiting the areas, reducing the habitat available or turning them into land rapidly. Then, it would be difficult to maintain the flora unique to the estuary of Han River. Hence, it is deemed necessary to remove some intervals of the estuary for the birds to inhabit them, while exploring the ways to manage them appropriately by making use of the sea troughs. In addition, it is also deemed necessary to prevent the foreign species or read-eared turtles sharing the habitat and competing with our native species or mud turtles from spreading across the river or check them. Moreover, it is also necessary to protect the habitat for such threatened or protected species as wildcat, yellowish brown serpent and small round frog, while securing their locomotive routes. Furthermore, since the roe deer observed frequently within the DMZ may well live on the wetland at the estuary of Han River, it is deemed necessary to precisely survey their locomotive routes and distribution. On the other hand, it is also necessary to survey the ecological characteristics of the habitat for such native (Korean special) species as roach and Microphysogobio tungtingensis; our survey team confirmed a total 30 species of fish inhabiting the area. Furthermore, since such migratory fish as eel and Coilia ectens are highly value-added fishery resources, it is deemed desirable to research into such fishery resources on a continual basis to explore the ways to plant their young effectively based on precise estimation of the proper catch and thereby, suggest the ways to have the profits returned to the fishermen in the region. Then, the estuary of Han River would be able to be used both as ecological and tourism resources. The major threats to the wetland and water-front ecological resources at the estuary of Han Rive may be large-scale national projects, various development projects by local autonomous administrations, extreme contamination due to inflowing wastes and polluted branches, etc. In order to solve such problems and preserve the estuary of Han River, the following reform measures have been put forwards: 1) integrated understanding of the wetland ecology at the estuary of Han River, continued monitoring and management 2) explorati
기상 및 환경 센서 데이터 기반 생육 환경 최적화 연구
전숙례 ( Sook Lye Jeon ),이진흥 ( Jinheung Lee ),김성억 ( Sung Eok Kim ),박정환 ( Jeonghwan Park ) 한국센서학회 2024 센서학회지 Vol.33 No.4
This study aimed to analyze the environmental factors affecting tomato growth by examining the correlation between weather and growth environment sensor data from P Smart Farm located in Gwangseok-myeon, Nonsan-si, Chungcheongnam-do. Key environmental variables such as the temperature, humidity, sunlight hours, solar radiation, and daily light integral (DLI) significantly affect tomato growth. The optimal temperature and DLI conditions play crucial roles in enhancing tomato growth and the photosynthetic efficiency. In this study, we developed a model to correct and predict the time-series variations in internal environmental sensor data using external weather sensor data. A linear regression analysis model was employed to estimate the external temperature variations and internal DLI values of P Smart Farm. Then, regression equations were derived based on these data. The analysis verified that the estimated variations in external temperature and internal DLI are explained effectively by the regression models. In this research, we analyzed and monitored smart-farm growth environment data based on weather sensor data. Thereby, we obtained an optimized model for the temperature and light conditions crucial for tomato growth. Additionally, the study emphasizes the importance of sensor-based data analysis in dynamically adjusting the tomato growth environment according to the variations in weather and growth conditions. The observations of this study indicate that analytical solutions using public weather data can provide data-driven operational experiences and productivity improvements for small- and medium-sized facility farms that cannot afford expensive sensors.
남숙현 ( Sook-hyun Nam ),구재욱 ( Jae-wuk Koo ),김은주 ( Eun-ju Kim ),박재로 ( Jae-ro Park ),전숙례 ( Sook Lye Jeon ),박주현 ( Joo Hyun Park ),문병진 ( Byeong-cheon Mun ),황태문 ( Tae-mun Hwang ) 한국수처리학회 2016 한국수처리학회지 Vol.24 No.6
This study was carried out to investigate the coagulation performance of some natural and synthetic material to remove chlorophyll-a and suspended particles in water. This natural coagulant is made of vegetable substances and plant-mineral composites. The removal of chlorophyll-a and suspended particles as a function of time, dose and initial concentration are tested. The natural coagulant dosage is determined with jar tester method. Samples in this study are mixed with water with high contamination of several algae species. The chlorophyll-a removal rate was 98 % and BGA removal rate was 100 % in water with low concentration of chlorophyll-a(sample A). The chlorophyll-a removal rate was 86 % and BGA removal rate was 76 % in water with high concentration of chlorophyll-a(sample C). It could also improve particulate and organic matter removal efficiency, indicating that it was highly effective as the coagulant agent. Also, an optimal dosage of coagulant on sample C becomes 2 times to 3 times larger than sample A. The fluorescence spectroscopy method using EEM showed that the peak of phycocyanin and Chlorophyll-a was simultaneously removed after the coagulant treatment. This method will be useful tool as an monitoring device. As a result of experiment using Daphnia magna as an indicator of toxicity, the optimal concentration of natural coagulant used in this experiments did not have a significant effect on toxicity.
한강하구 생물자원 및 서식처 특성에 관한 연구 -신곡수중보 하류 한강하구의 어류상-
문병렬 ( Byeong Ryeol Moon ),전숙례 ( Sook Lye Jeon ),현문식 ( Moon Sik Hyun ),황종서 ( Jong Seo Hwang ),최준길 ( Jun Kil Choi ) 한국환경영향평가학회 2011 환경영향평가 Vol.20 No.5
This study is performed to clarify the fish fauna and fish habitat of downstream of Singok submerged weir within Han River estuary during April~December 2009. It was studied at the nine sites of Han River estuary area. The three of them were located in the mainstream of Han River and six of them were located in three wetlands which as Sannam, Janghang and Dolbangguji. Total fish fauna was identified as 9 order 15 family and 38 species (2,230 individuals). It was divided as 8 order 11 family 28 species from three sites in the mainstream of Han River and as 5 order 8 family 19 species in waterways at mud flats of three wetlands. It was made up the fish fauna as 3 order 4 family 12 species during the survey period at the waterways in the rice paddies. Hemibarbus labeo was dominant species in the whole research sites and waterways at mud flats. Carassius auratus was dominant species in the waterways between rice paddies and Chelon haematocheilus was dominant species in mainstream of Han River estuary.
동해안 4개 석호의 수질과 식물플랑크톤 계절별 변화에 관한 연구
문병렬 ( Byeong Ryeol Moon ),전현진,전숙례 ( Sook Lye Jeon ),이재선 ( Jae Sun Lee ),신지은 ( Ji Eun Shin ),안지혜 ( Ji Hye Ahn ),양용운 ( Yong Woon Yang ),현문식 ( Moon Sik Hyun ),김미아 ( Mia Kim ) 한국환경과학회 2015 한국환경과학회지 Vol.24 No.9
The seasonal variation of phytoplankton communities and its standing crops in accordance with environmental factors were investigated at Yeongrang-ho, Cheongcho-ho, Mae-ho and Hyang-ho which are located in the East coast of Korea during April to October 2011. High concentrations of T-N and T-P were observed in four lagoons due to the inflowing nutrients from farmlands and residential areas near lagoons. Nutrient salts mainly composed of nitrogen and phosphate caused the eutrophication of the lakes, leading to the robust growth of phytoplankton. During the period of investigation, 64 to 107 taxa of phytoplankton were observed in four lagoons. Diatoms were the most dominant species with high density. Non-point pollution source was estimated as the main cause of water pollution of lagoons. Trophic states of lagoons evaluated using the value of TSI and TSIKO indicated that all the investigated lagoons were in the eutrophication state.