A new canopy photosynthesis and transpiration measurement system (CAPTS) for canopy gas exchange research

被引：43
|
作者：
Song, Qingfeng [1 ,2 ,3 ]
Xiao, Han [2 ,4 ]
Xiao, Xianglin [4 ]
Zhu, Xin-Guang [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, CAS Key Lab Computat Biol, Shanghai 200031, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Biol Sci, Partner Inst Computat Biol, German Max Planck Soc,MPG, Shanghai 200031, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Biol Sci, MPG Partner Inst Computat Biol, State Key Lab Hybrid Rice, Yueyang Rd 320, Shanghai 200031, Peoples R China
[4] Shanghai Jiao Tong Univ, Sch Biomed Engn, Dongchuan Rd 800, Shanghai 200030, Peoples R China
来源：
AGRICULTURAL AND FOREST METEOROLOGY | 2016年 / 217卷
基金：
中国国家自然科学基金;
关键词：
Canopy photosynthesis; Crop yield; Field measurements; Rice; BOWEN-RATIO; CHAMBER MEASUREMENTS; CO2; ASSIMILATION; EDDY-CORRELATION; H2O FLUXES; FIELD; LEAF; VEGETATION; DESIGN; COTTON;
D O I：
10.1016/j.agrformet.2015.11.020
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Accurate measurement of canopy gas exchange rates is crucial for studying canopy photosynthetic resource use efficiencies. We designed, created, and evaluated a new canopy photosynthesis and transpiration measurement system (CAPTS). The CAPTS included: (1) modular chamber sides, (2) sensors for temperature, CO2, air pressure and humidity that were integrated on a removable chamber cover, and (3) a user-friendly console for control of automatic opening and closing of the chamber cover for data recording, storage and analysis. The CAPTS can accurately measure canopy photosynthetic CO2 uptake rate, which was demonstrated with both rice and tobacco. The CAPTS provides a basic ability to measure rates of photosynthesis, respiration, and transpiration of plot-size canopies and other components of agro-ecosystems. (C) 2015 Published by Elsevier B.V.
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页码：101 / 107
页数：7
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