부유식물과 침수식물이 습지의 주요 수 환경에 미치는 영향

서지정보

ㆍ발행기관 : 한국습지학회 ㆍ수록지정보 : 한국습지학회지 / 15권 / 3호
ㆍ저자명 : 이근주, 성기준

목차

1. 서 론
2. 연구방법
3. 결과 및 고찰
4. 결 론

한국어 초록

In this study, two types of wetland plants, Eichhornia crassipes (a floating plant) and Ceratophyllum demersum (a
submerged plant) were introduced to wetland mesocosms to understand how the water properties of wetlands such as pH,
dissolved oxygen content, water temperature, oxidation reduction potential, and nutrient concentrations are affected by
different types of wetland plant. The floating plant lives on the water surface and can block light penetration; it exhibited
the lowest water temperature and temperature difference between lower and upper layers. After the addition of contaminants,
the dissolved oxygen (DO) concentration decreased abruptly but recovered continuously in all mesocosms; especially the
submerged plants, which photosynthesize in water, showed the largest increases in DO and diel periodicity DO, as well as
in pH value. The oxidation-reduction potential in both water and sediment were affected by the presence of wetland plants
and plant type and the results suggest that various aspects of wetland biogeochemistry are affected by the presence and type
of wetland plants. The total nitrogen and phosphorous concentrations in water decreased in the following order: Water only
< Water + Soil < Floating Plants < Submerged Plants. Although both floating and submerged plants can control algal
concentrations, the effect was more prominent for floating plants.

영어 초록

In this study, two types of wetland plants, Eichhornia crassipes (a floating plant) and Ceratophyllum demersum (asubmerged plant) were introduced to wetland mesocosms to understand how the water properties of wetlands such as pH,dissolved oxygen content, water temperature, oxidation reduction potential, and nutrient concentrations are affected bydifferent types of wetland plant. The floating plant lives on the water surface and can block light penetration; it exhibitedthe lowest water temperature and temperature difference between lower and upper layers. After the addition of contaminants,the dissolved oxygen (DO) concentration decreased abruptly but recovered continuously in all mesocosms; especially thesubmerged plants, which photosynthesize in water, showed the largest increases in DO and diel periodicity DO, as well asin pH value. The oxidation-reduction potential in both water and sediment were affected by the presence of wetland plantsand plant type and the results suggest that various aspects of wetland biogeochemistry are affected by the presence and typeof wetland plants. The total nitrogen and phosphorous concentrations in water decreased in the following order: Water only< Water + Soil < Floating Plants < Submerged Plants. Although both floating and submerged plants can control algalconcentrations, the effect was more prominent for floating plants.

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