Publikation: EM-Algorithm as a tool for structure analysis of stands of the common reed (Phragmites australis)
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The frequency distributions of morphometric and mechanical properties of randomly sampled stalks of seven reed stands at Lake Constance-Untersee are analysed by the Estimation-Maximisation Algorithm. The aim was to look for composed (bimodal) distribution indicating at least two different stem types. In each stand, between one and nine parameters are found to give a bimodal distribution. The two stem types are "flowering shoots" and "non-flowering shoots". The means of nearly all parameters investigated are different at the 1% level of significance. The flowerless shoots are identical with "secondary shoots" and the flowering shoots refer to terminal (= "primary") shoots. The separation of stem types allows investigation of the stand structure and the influence upon it by "rhizome-internal" and "external" factors in more detail.
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OSTENDORP, Wolfgang, Joachim MÖLLER, 1991. EM-Algorithm as a tool for structure analysis of stands of the common reed (Phragmites australis). In: Ecological Modelling. 1991, 53(1-2), pp. 27-38. ISSN 0304-3800. Available under: doi: 10.1016/0304-3800(91)90139-RBibTex
@article{Ostendorp1991EMAlg-8679, year={1991}, doi={10.1016/0304-3800(91)90139-R}, title={EM-Algorithm as a tool for structure analysis of stands of the common reed (Phragmites australis)}, number={1-2}, volume={53}, issn={0304-3800}, journal={Ecological Modelling}, pages={27--38}, author={Ostendorp, Wolfgang and Möller, Joachim} }
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