摘要
人工湿地系统是一个完整的生态系统,它形成了内部良好的循环并具有较好的经济效益和生态效益,本文主要研究了人工湿地园中泽泻沼泽植物气孔导度日变化,结果表明:泽泻叶片的气孔导度日进程在晴朗的天气成双峰曲线变化,出现“午休”现象,上午的峰值要高于下午。这种现象不受叶片温度、相对湿度、大气温度和光量子通量密度单一因子的影响,是环境因子共同作用的结果。是泽泻自身的生理特性所决定。笔者认为,水生植物对环境的不同响应可以为人工湿地同生物多样性的建设提供理论支撑。
The artificial wetland system is an integrate ecosystem, with well interior cycles and better economic benefit and ecological benefit. Daily variation in stomatal conductance of wetland plant were studied in this paper.The results showed that daily variation in stomatal conductance of leaf has the tendency of double-peak curve, appearing 'noon break' in clear day, and peak value in the morning is higher than that in the afternoon. This is not influenced by temperature of leaf, relative humid, air temperature and flux of light quantum, but controlled by comprehensive impact of environmental factors and physiological characteristics ofAlisma orientate. The author thinks that the different response of wetland plants to environment can provide theory basis for the construction of biodiversity of constructed wetland garden.
出处
《生态科学》
CSCD
2003年第3期218-221,共4页
Ecological Science
基金
松嫩平原湿地的保育模式试验示范(吉林省开发重点项目)
国家十五科技攻关专题(2001ba508b24)共同资助
