一种用于在自然条件下测量叶片二氧化碳和水汽交换的便携式稳态气孔计。
A portable steady-state porometer for measuring the carbon dioxide and water vapour exchanges of leaves under natural conditions.
作者信息
Schulze E -D, Hall A E, Lange O L, Walz H
机构信息
Lehrstuhl Pflanzenökologie der Universität Bayreuth, Postfach 3008, D-8580, Bayreuth, Germany.
Dept. of Botany and Plant Sciences, University of California, Riverside, USA.
出版信息
Oecologia. 1982 Jan;53(2):141-145. doi: 10.1007/BF00545656.
A portable porometer is described for measuring the steady-state CO and HO exchange rates of leaves under natural conditions. The porometer has an open gas exchange system which monitors the differences in concentrations of CO and HO entering and leaving a cuvette which is clamped on or around leaves. The cuvette is designed to maintain ambient air temperature and humidity around the leaf. This instrument may also be used to determine CO response curves in the field. Examples of diurnal courses are presented for attached leaves of different species having high and low rates of CO exchange.
本文描述了一种便携式气孔计，用于测量自然条件下叶片的稳态二氧化碳和水汽交换速率。该气孔计具有开放式气体交换系统，可监测进入和离开夹在叶片上或叶片周围的叶室的二氧化碳和水汽浓度差异。叶室的设计旨在维持叶片周围的环境空气温度和湿度。该仪器还可用于在田间测定二氧化碳响应曲线。文中给出了不同物种附着叶片的日变化过程示例，这些叶片具有高和低的二氧化碳交换速率。
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