A New Approach to Distinguishing Photosynthetic Types of Plants. A Case Study in Northeast China Transect (NECT) Platform |
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| Authors: | Tang HP Zhang XS |
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| Institution: | (1) Institute of Resources Sciences, Beijing Normal University, Beijing, 100875, P.R., China;(2) Laboratory of Quantitative Vegetation Ecology, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, P.R., China |
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| Abstract: | Discriminant analysis is an important method in multivariable statistic analysis to show what type an individual should belong
to. Based on actual field photosynthetic value set obtained from our research platform, North East China Transect (NECT),
a new approach, developed from the concept and principle of discriminant analysts, was proposed to distinguish C3 and C4 plants. Indices related to plant photosynthetic capacity measured by an LCA4 photosynthesis system were selected to build the discriminant model which is based on four related parameters: net photosynthetic
rate, transpiration rate, stomatal conductance, and difference in temperature between leaf surface and atmosphere. Compared
with other approaches, the present one is fast, straightforward, and efficient.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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| Keywords: | C3 C4 discriminant analysis method intercellular CO2 concentration leaf and atmosphere temperature net photosynthetic rate stomatal conductance transpiration rate water use efficiency |
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