Hello ECOLOG, We are attempting to measure transpiration from wetland plants in one of our study sites. Some plants are easier than others because the leaves and stems fit in the LI-COR 6400XT portable photosynthesis system standard 2x3 leaf chamber. We are having difficulty using this leaf chamber to measure transpiration from thick stems and leaves of other plants such as, Schoenoplectus acutus, S. tabernaemontani, S. californicus and Typha latifolia and T. domingensis. The leaf chamber can not build a good seal around these thick parts. We have tried adding extra padding in the leaf chamber using a packing material sponge and pool noodle foam but we are afraid there is still some leakage going on affecting our measurements.
Please send us any ideas or suggestions on how to improve our seal when measuring thick plant parts using a 2x3 leaf chamber. Thank you, Jorge -- Jorge Ramos PhD Student Wetland Ecosystem Ecology Lab Arizona State University Personal website: http://solsgrads.asu.edu/ecojorgeramos WEEL website: http://weel.asu.edu
