Comparison of Absorption Ability by Difference of Physiological Response in Three Foliage Plants Exposed to $O_3 and SO_2$ SIngly and in Combination

관엽식물의 생리적 반응 차이에 의한 대기오염물질 $(O_3, SO_2, O_3+SO_2)$의 흡수능 비교

  • 박소홍 (서울시립대학교 환경원예학과) ;
  • 이영이 (서울시립대학교 환경원예학과) ;
  • 배공영 (서울시립대학교 환경원예학과) ;
  • 이용범 (서울시립대학교 환경원예학과)
  • Published : 1998.02.01

Abstract

We compared absorption and adsorption rates of air pollutants by plants to eveluate the difference of absorption capacity of plant species and kinds of air pollutants, when foilage plants were exposed to $O_3$ and $SO_2$ singly and combiningly. Absorption and adsorption rates of three foliage plants exposed to $O_3$ and $SO_2$ singly and in combination varied a little according to plant species and kinds of air pollutants. But total absorption rate of Spathiphyllum patinii and Ficus benjamina was higher, and it was lower in Pachira aquatica. When exposed to $O_3$ and $SO_2$ at the same concentration, Pachira aquatica absorbed more $O_3$ than $SO_2$, in contrast to Ficus benjamina absorbing more $SO_2$. On the other hand, Spathiphyllum patinii absorbed as much $O_3$ as $SO_2$. Physiological activities were measured since absorption rates were affected by physiological characteristics of plants. Spathiphyllum patinii and Ficus benjamina showed higher photosynthetic and transpiration rates, and Pachira aquatica showed lower values. And diffusive and stomatal resistences of Pachira aquatica were higher than those of two other species. These results showed that absorption capacity was affected by the differences of physiological characteristics. Absorption capacity of air pollutants increased in plants, such as Spathiphyllum patinii and Ficus benjamina, which had high $SO_2$ absorption rate. We found that plants showing high $CO_2$ absorption rates absorb a lot of air pollutnats.

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