tailieunhanh - Báo cáo lâm nghiệp: " Consequences of increased deer browsing winter on silver fir and spruce regeneration in the Southern Vosges mountains: Implications for forest management"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:" Consequences of increased deer browsing winter on silver fir and spruce regeneration in the Southern Vosges mountains: Implications for forest management" | Ann. For. Sci. 62 2005 175-181 INRA EDP Sciences 2005 DOI forest 2005009 175 Original article Consequences of increased deer browsing winter on silver fir and spruce regeneration in the Southern Vosges mountains Implications for forest management Patricia HEUZEa Annik SCHNiTZLERa Francois KLEINb a Laboratoire Biodiversité et Fonctionnement des écosystèmes Équipe de Phytoécologie Université de Metz Campus Bridoux avenue du Général Delestraint 57070 Metz Cedex France b Office National de la Chasse et de la Faune Sauvage Centre National d Étude et de Recherche Appliquée Sanglier-Cervidés 1 place Exelmans 55000 Bar-le-Duc France Received 19 February 2004 accepted 19 May 2004 Abstract - Forest and wildlife management practices in the Vosges have changed rapidly during the last 200 years modifying interactions between animals and plants especially deer and silver fir. In order to assess the impact of browsing on fir regeneration we compared two sets of similar forests which differed primarily in terms of deer population dynamics and history. On slopes with southern exposures many fir seedlings did not reach heights above 30 cm and spruce developed this was related to browsing intensity. Spruce expansion was also facilitated by its presence in nearby mature stands and was not related to a particularly high level of browsing. Of the six site characteristics taken into consideration only the presence of foliage from the understorey above seedlings was found to benefit fir by limiting spruce development and reducing browsing intensity. Results are discussed in light of current and proposed management practices for silver fir-beech forests and their wildlife. silver fir-beech forest regeneration browsing deer management Résumé - Consequences de l augmentation de l abroutissement hivernal par les cerfs et chevreuils sur la regeneration du sapin et de l epicea dans les Vosges du Sud. Implications pour la gestion forestiere. Les récents changements de gestion forestière

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