제주시 지역 습지의 식물분포상과 습지식물의 엽록소형광 반응에 관한 연구

Abstract

This study was investigated on the biodiversity and life form of plants in the wetlands in Jeju city area, and the chlorophyll fluorescence response of several hydrophytes exposed to heavy metal stress. The perception of middle school students about environmental problems and education was also surveyed. The results are as follows; 1) One hundred and thirty one species of plants were observed in the wetlands on Jeju city. The plant biodiversity of wetlands was high in Ban pond (40 species), Jeongmool (38 sp), Mosanimool (37 sp), and etc. The biodiversity of hydrophytes was high in Jeongmool and Mosanimool (25 sp), Yongsoo reservoir and Ban pond (23 sp), and etc. The various life forms of wetland plants were distributed on Jeongmool, Woot pond, Yongsoo reservoir and Dolgaegi pond (5sp appearance). 2) Of 5 hydrophytic species such as Lemna, Salvinia, Ricciocarpus, Nymphaea and Typha, Lemna species was most sensitive against Cd++ stress. Therefore the chlorophyll fluorescence intensity and photosynthetic efficiency decreased considerably under Cd++ stress. 3) The environmental education at middle school was focused on field experience, and middle school students also prefer to obtain environmental knowledge through field experience rather than in class. From the results described above, 1) field experience seems to be necessary for environment education in middle school, 2) wetlands such as Ban pond, Jeongmool, Mosanimool, and etc. seem to be useful as nature study sites. 3) And Lemna seems to be valuable as an indicator plant for environmental education in the laboratory.