Bugbee B
Plants, Soils, and Biometeorology [correction of Biometerology] Department, Utah State University, Logan 84322-4820.
HortScience. 1992 Jul;27(7):770-6.
This paper describes the use of a commercial growth chamber for canopy photosynthesis, respiration, and transpiration measurements. The system was designed to measure transpiration via water vapor fluxes, and the importance of this measurement is discussed. Procedures for continuous measurement of root-zone respiration are described, and new data is presented to dispel myths about sources of water vapor interference in photosynthesis and in the measurement of CO2 by infrared gas analysis. Mitchell (1992) has described the fundamentals of various approaches to measuring photosynthesis. Because our system evolved from experience with other types of single-leaf and canopy gas-exchange systems, it is useful to review advantages and disadvantages of different systems as they apply to various research objectives.
本文描述了使用商用生长箱进行冠层光合作用、呼吸作用和蒸腾作用测量的情况。该系统旨在通过水汽通量测量蒸腾作用，并讨论了这种测量的重要性。文中描述了连续测量根区呼吸作用的程序，并给出了新的数据，以消除关于光合作用中水汽干扰来源以及红外气体分析法测量二氧化碳时的相关误解。米切尔（1992年）已经描述了测量光合作用的各种方法的基本原理。由于我们的系统是从其他类型的单叶和冠层气体交换系统的经验发展而来的，因此回顾不同系统在适用于各种研究目标时的优缺点是很有用的。
