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Development of flora, vegetation and grazing value in experimental plots of a Quercus coccifera garrigue

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Abstract

From 1969–1977 an experiment was carried out in a Quercus coccifera garrigue, to follow the herbaceous species development after removal of the woody vegetation. Controlled variables are cutting date and fertilization. Flora and vegetation were regularly registrated on 18 out of 63 plots in a factorial design. Two types of results are obtained:

  1. 1.

    Five groups of species regarding their response to the disturbance are distinguished: disappearing, strongly decreasing, constant, strongly increasing and newly appearing species. In general, the floristic composition develops towards an equilibrium.

  2. 2.

    The number of species and the vegetation density are increasing with fertilization, although this increase is not proportional to the quantity of fertilizers.

A method is suggested to calculate the grazing value and the corresponding sheep density, based on flora and vegetation knowledge. The results indicate that the stock can be multiplied by 3, at least, and by 7, at most, from the 3rd year after the beginning of the experiment.

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Authors and Affiliations

  1. C.E.P.E. Louis Emberger, B. P. 5051, 34033, Montpellier-Cedex, France

    J. Poissonet, P. Poissonet & M. Thiault

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  1. J. Poissonet
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  2. P. Poissonet
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  3. M. Thiault
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Nomenclature follows Flora Europaea

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Poissonet, J., Poissonet, P. & Thiault, M. Development of flora, vegetation and grazing value in experimental plots of a Quercus coccifera garrigue. Vegetatio 46, 93–104 (1981). https://doi.org/10.1007/BF00118387

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  • DOI: https://doi.org/10.1007/BF00118387

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