广西植物
廣西植物
엄서식물
GUIHAIA
2013年
6期
774-779,750
,共7页
王瑛%余金昌%曹洪麟%黄小凤%韦阳连
王瑛%餘金昌%曹洪麟%黃小鳳%韋暘連
왕영%여금창%조홍린%황소봉%위양련
乡土树种%光合生理反应%交通尾气污染
鄉土樹種%光閤生理反應%交通尾氣汙染
향토수충%광합생리반응%교통미기오염
native species%photosynthetic response%auto-exhaust pollution
为揭示植物对交通尾气污染的光合反应,对14种华南乡土树种在植物园和道路绿地中的光合生理指标进行比较。结果表明:交通尾气污染胁迫下,越南山龙眼能通过提升气孔导度(Gs)、叶绿素含量(Ct)和光能转化效率(Fv/Fm)将其光合能力向上调节;假鹰爪、红鳞蒲桃、枫香、华润楠、红叶石楠、樟树和九节等7个树种能通过协调Gs、Ct和Fv/Fm三者间的此消彼长,保证其光合能力不明显变化;山杜英、格木、黄果厚壳桂、胡氏青冈、黄栀子和深山含笑等6个树种对交通尾气污染较敏感,抗污染能力不强,光合能力向下调节。
為揭示植物對交通尾氣汙染的光閤反應,對14種華南鄉土樹種在植物園和道路綠地中的光閤生理指標進行比較。結果錶明:交通尾氣汙染脅迫下,越南山龍眼能通過提升氣孔導度(Gs)、葉綠素含量(Ct)和光能轉化效率(Fv/Fm)將其光閤能力嚮上調節;假鷹爪、紅鱗蒲桃、楓香、華潤楠、紅葉石楠、樟樹和九節等7箇樹種能通過協調Gs、Ct和Fv/Fm三者間的此消彼長,保證其光閤能力不明顯變化;山杜英、格木、黃果厚殼桂、鬍氏青岡、黃梔子和深山含笑等6箇樹種對交通尾氣汙染較敏感,抗汙染能力不彊,光閤能力嚮下調節。
위게시식물대교통미기오염적광합반응,대14충화남향토수충재식물완화도로록지중적광합생리지표진행비교。결과표명:교통미기오염협박하,월남산용안능통과제승기공도도(Gs)、협록소함량(Ct)화광능전화효솔(Fv/Fm)장기광합능력향상조절;가응조、홍린포도、풍향、화윤남、홍협석남、장수화구절등7개수충능통과협조Gs、Ct화Fv/Fm삼자간적차소피장,보증기광합능력불명현변화;산두영、격목、황과후각계、호씨청강、황치자화심산함소등6개수충대교통미기오염교민감,항오염능력불강,광합능력향하조절。
In order to reveal the photosynthetic responses to auto-exhaust pollution,the photosynthetic parameters of 1 4 native species of south China,planted in botanical garden and road greenland respectively,were tested and contras-ted.The results showed that there were three kinds of photosynthetic responses to auto-exhaust pollution of the n-ative species,such as up-regulation of photosynthesis,down-regulation of photosynthesis and non-regulation of photo-synthesis.The photosynthesis of Helicia cochinchinensis was up-regulated by raising its stomatal conductance,chlo-rophyll content and optimal PSⅡefficiency.Seven species of non-regulation of photosynthesis,included Desmos chinensis,Syzygium hancei,Liquidambar formosana,Machilus chinensis,Photinia serrulata,Cinnamomum cam-phora and Psychotria asiatica,had the ability to harmonize the up-regulation and down-regulation among stomatal conductance,chlorophyll content and optimal PSⅡefficiency.As for species of down-regulation of photosynthesis,in-cluded Elaeocarpus sylvestris,Erythrophleumfordii,Cryptocarya concinna,Cyclobalanopsis hui,Gardenia jasmi-noides and Michelia maudiae,they were sensitive to auto-exhaust pollution,and had no ability to prevent the decline of photosynthesis.