五种攀缘植物光合作用与光因子关系的初步研究

摘要/Abstract

摘要： 城市垂直绿化常用的攀缘植物爬山虎、美国爬山虎、紫藤、常春藤、洋常春藤的净光合速率、呼吸速率、光能利用率及光补偿点等指标进行了测定和分析.结果表明,5种攀缘植物的净光合速率日变化显示出"双峰",第一峰值出现在10:00～12:00,第二峰值出现在14:00～16:00,"午休"现象明显;呼吸速率的日变化也表现出"双峰",第一峰值出现在11:00～13:00,第二峰值出现在14:00～17:00;常春藤、洋常春藤、爬山虎、美国爬山虎及紫藤的光补偿点分别为5.73、5.07、9.96、6.40和18.93μmol·m^-2·s^-1;紫藤在强光下的光能利用率较高,其次为美国爬山虎,而在弱光下洋常春藤光能利用率较高.可以认为,紫藤为典型的阳性植物,爬山虎、美国爬山虎为中性植物,常春藤、洋常春藤为阴性植物.

关键词: 攀缘植物, 垂直绿化, 常春藤, 紫藤, 爬山虎

Abstract: Studies on the photosynthetic and respiratory rates,light utilization efficiencies and light compensations of five climbing plants showed that the diurnal variations of photosynthetic rates presented double peak,the first peak was between 10:00 to 12:00,and the second was between 14:00 to 16:00.The phenomenon of “noon break" was obvious.The diurnal variations of respiration rates also presented double peak,the first peak was between 11:00 to 13:00,and the second was between 14:00 to 17:00.The light compensation point of Hedera nepatensis,H.helix,Parthenocissus tricuspidata,P.quinuefolia and Wisteria sinensis was 5.73,5.07,9.96,6.40 and 18.93 μmol·m^-2·s^-1,respectively,and the light utilization efficiency of W.sinensis was higher under strong light,P.quinuefolia was the second,but that of H.helix was higher under weak light.The results showed that Wisteria sinensis was a typical heliophytic plant,Parthenocissus tricuspidata and P.quinuefolia were neuter plants,and Hedera nepalensis and H.helix were typical sciophytic plants.

Key words: Climbing plants, Vertical virescence, Hedera helix, Parthenocissus quinuefolia, Wisteria sinensis

中图分类号:

Q948.1

黄成林, 傅松玲, 梁淑云, 纪易凡. 五种攀缘植物光合作用与光因子关系的初步研究[J]. 应用生态学报, 2004, (7): 1131-1134.

HUANG Chenglin, FU Songling, LIANG Shuyun, JI Yifan. Relationships between light and physiological characters of five climbing plants[J]. Chinese Journal of Applied Ecology, 2004, (7): 1131-1134.

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