%A LIU Jing;LIU Wen-qing;ZHAO Nan-jing*;ZHANG Yu-jun;MA Ming-jun;YIN Gao-fang;DAI Pang-da;WANG Zhi-gang;WANG Chun-long;DUAN Jing-bo;YU Xiao-ya;FANG Li %T The Method of Phytoplankton Photosynthesis Activity In-Situ Measurement Based on Light Induced Fluorescence %0 Journal Article %D 2013 %J SPECTROSCOPY AND SPECTRAL ANALYSIS %R 10.3964/j.issn.1000-0593(2013)09-2443-05 %P 2443-2447 %V 33 %N 09 %U {https://www.gpxygpfx.com/CN/abstract/article_6554.shtml} %8 2013-09-01 %X According to the phytoplankton fluorescence induction characteristics under different light conditions, chlorophyll fluorescence as a probe for analysis of phytoplankton photosynthesis was studied. The present paper proposed a in-situ measurement method based on the chlorophyll fluorescence values Ft and Fm to get phytoplankton photosynthesis activity, Chlorella vulgaris, microcystis aeruginosa and Cyclotella meneghiniana Kiits were selected as experimental subjects, a comparison test was done between self-developed in-situ measurement system and Water PAM in lab, and The results showed that coefficients between the two methods were 0.977 8, 0.878 6 and 0.795 3. This work provides a rapid and in-situ measurement method for phytoplankton photosynthesis activity.