TAILIEUCHUNG - Báo cáo khoa học: " Effects of fertilization on the vascular ground vegetation of European beech (Fagus sylvatica L.) and sessile oak (Quercus petraea (Matt.) Lieb.) stands"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Effects of fertilization on the vascular ground vegetation of European beech (Fagus sylvatica L.) and sessile oak (Quercus petraea (Matt.) Lieb.) stands. | Ann. For. Sci. 58 2001 829-842 INRA EDP Sciences 2001 829 Original article Effects of fertilization on the vascular ground vegetation of European beech Fagus sylvatica L. and sessile oak Quercus petraea Matt. Lieb. stands Laurent Misson Gaetan du Bus de Warnaffe and Mathieu Jonard Université catholique de Louvain Unite des eaux et forêts place Croix du Sud 2 bte 9 1348 Louvain-la-Neuve Belgium Received 12 February 2001 accepted 9 August 2001 Abstract- The objective of this study was to assess the effects of base cation Ca Mg K and phosphorous P fertilization on the vascular ground vegetation in mature European beech and sessile oak stands located on acid brown soils. Two types of treatment were applied next to control plots dolomite lime dolomite lime natural phosphate potassium sulphate . Specific richness total cover equitability coefficient as well as the Ecological Group of the ground vegetation were studied. Four years after dolomite application new N-demanding and ruderal species appeared and increased the specific richness. The natural phosphate application combined with potassium sulphate positively influenced the emergence of new mesotrophic plant species. In the beech stands the total cover tended to increase while in the oak stand the equitability coefficient decreased. The specific richness of the initial acidophilous vegetation remained unchanged but the total cover decreased. Differences between the response of the ground vegetation in the oak and the beech stands were attributed to a difference in stand density. base cation phosphorous acid brown soil plant diversity ecological group Résumé - Effets de la fertilisation sur les plantes vasculaires du sous-bois dans des peuplements de hêtre Fagus sylvatica L. et de chêne sessile Quercuspetraea Matt. Lieb. . L objectif de cette étude est d evaluer les effets d une fertilisation en cations basiques Ca Mg K et P sur les plantes vasculaires du sous-bois dans des peuplements adultes de hêtre et de chêne .

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