Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: " Early development and nutrition of Norway spruce (Picea abies (L.) Karst.) seedlings on different seedbeds in the Bavarian limestone Alps – a bioassay" | Ann. For. Sci. 63 2006 339-348 INRA EDP Sciences 2006 DOI forest 2006014 339 Original article Early development and nutrition of Norway spruce Picea abies L. Karst. seedlings on different seedbeds in the Bavarian limestone Alps - a bioassay Roland BAIERa Rasmus ETTLa Christoph HAHNb Axel GoTTLEINa a Technische Universitat Munchen Department of Ecology Forest Nutrition and Water Resources Am Hochanger 13 85354 Freising Germany b Ludwig-Maximilians-Universitat Munchen Faculty of Biology Department of Biology I Mycological Biodiversity Menzingerstr. 67 80638 Munich Germany Received 17 May 2005 accepted 2 November 2005 Abstract - The development and nutrition of Norway spruce seedlings growing under controlled conditions in three different seedbed types mineral Ah horizon organic layer highly decayed dead wood obtained from two protective forest sites in the Bavarian limestone Alps was investigated for one growing season. The seedlings showed clear responses to the three natural seedbed types in biomass development and nutritional status. Their biomass was significantly lower in mineral soils and organic layers as compared to decayed dead wood. Seedlings in organic and in decayed wood substrates had significantly higher contents of N P K Mn Zn only decayed wood and more balanced nutrient relations as compared to seedlings grown in mineral soils. It was indicated that the acid organic layers and highly decayed dead wood represents a good seedbed for spruce natural regeneration especially in regard to the impaired nutrient availability on alkaline dolomite sites in the Bavarian limestone Alps. Picea abies decayed woody debris organic layer mineral soil seedbed Résumé - Développement précoce et nutrition de semis de Picea abies L Karst. élevés sur differents substrats dans les Alpes Bavaroises calcaires. Le développement et la nutrition de semis d épicéa poussant en conditions contrôlées sur trois types de substrat horizon mineral Ah strate organique bois mort .
