居室养花宜配几盆旱生植物居室盆花因夜间进行呼吸作用吸收氧气，放出二氧化碳气。而居室配置几盆仙人掌或景天科植物可较好地平衡居室内二氧化碳的浓度。一般花卉白天气孔开放，吸进二氧化碳，进行光合作用。而原产于沙漠地区的仙人掌类或景天、石莲花、落地生根等景天科... Room flowers should be equipped with several potted plants Xiantan habitat during the night due to respiratory absorption of oxygen, release of carbon dioxide gas. The configuration of several pots of cactus or Sedum Sedum plants can better balance the indoor concentration of carbon dioxide. General stoma opening during the daytime, sucked into carbon dioxide for photosynthesis. And native to the desert cacti or Sedum, stone lotus, roots and other Sedum Branch ...