Ozone response of <i>Sedum</i> species commonly used for green roofs

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  • 屋上緑化に用いられるセダム類のO<sub>3</sub>応答
  • 屋上緑化に用いられるセダム類のO₃応答
  • オクジョウ リョッカ ニ モチイラレル セダムルイ ノ O ₃ オウトウ

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<p>We evaluated O3 response of nine Sedum species commonly used for green roofs. Plants were exposed to O3 with 120 ppb once a week for two months. O3 responses of dry mass, which were mainly caused by those of photosynthetic nitrogen utilization efficiency, differed among the Sedum species, but the responses were at most ±10%. Plant cover decreased with O3 exposure, but the decrease was at most about 15%. Our results show that green roofs using Sedum species are likely to be sustainable under urban environment where warning for photochemical smog is issued about once a week.</p>

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