Impact du type de traitement sylvicole ancien sur l'état actuel des forêts : le cas du quart en réserve

Abstract : The current context of increasing levies forest products raises the question of what will happen in long-term changes in forest practices on forest ecosystem. To answer this question, we must use our history and the lessons it can give us about patterns of similar situations in the past. We compared « quart en réserve » (a measure of capital forest preservation) and "coupes affouagères" (operated to respond to the needs of wood). Research in the departmental archives allowed us to locate these two methods of silvicultural practices and conduct field sampling per couple ("coupes affouagères" and "quart en reserve") in homogeneous stations and stands. This homogeneity condition added to the comparison of vegetation allowed us to know the effects due to past forestry practices on flora. In a statistical study of the floristic data, we highlighted the significant difference existing in species richness between "coupes" (richer in number of species) and « quarts en reserve. The vegetation analysis, carried out on calcareous, acid and marl, in the study of correspondence (AFC) revealed a significant difference in limestone soil only, between "quart" and "affouage" (results obtained from the 11 couples limestones sampled). Comparing the frequency of occurrence of species confirms this result and highlights some taxa present differently depending on modality of forest treatment. These differences in the former mode of operation will be confirmed by a larger sample focused exclusively on the limestone soil.
Document type :
Master thesis
File URL :
http://docnum.univ-lorraine.fr/prive/SCDSCI_M_2010_FEISS_THOMAS.pdf
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https://hal.univ-lorraine.fr/hal-01801834
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Submitted on : Monday, May 28, 2018 - 5:20:06 PM
Last modification on : Tuesday, July 23, 2019 - 4:00:01 PM

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Thomas Feiss. Impact du type de traitement sylvicole ancien sur l'état actuel des forêts : le cas du quart en réserve. Sciences de l'environnement. 2010. ⟨hal-01801834⟩

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