TAILIEUCHUNG - Báo cáo lâm nghiệp: "The effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts"

Tuyển tập những bài báo cáo nghiên cứu khoa học hay nhất được đăng trên tạp chí JOURNAL OF FOREST SCIENCE đề tài: The effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts. | JOURNAL OF FOREST SCIENCE 56 2010 5 195-208 The effect of point application of fertilizers on the soil environment of spread line windrows in the Krusné hory Mts. D. Vavricek1 J. Pechácek1 P. Jonak2 P. Samec3 1Faculty of Forestry and Wood Technology Mendel University in Brno Brno Czech Republic Forests of the Czech Republic Directorate in Hradec Králové Czech Republic 3Forest Management Institute Workplace in Frýdek-Místek Czech Republic ABSTRACT The plateau of the Krusné hory Mts. belongs to areas that suffered the greatest damage caused by airpollution stresses in Europe. A part of cultural practices aimed at the reconstruction of local mountain forests was the inconsiderate use of bulldozer technologies for the preparation of sites for forest stand restoration. In the course of large-scale scarification the top-soil horizons were moved into line windrows which caused marked degradation of the soil environment. The present revitalization of the soil environment is based on the principle of spreading these manmade windrows. Experimental plots were established in localities affected by scarification the organomineral material from windrows was superimposed on them and subsequently they were reforested with Norway spruce Picea abies L. Karst. . In 2005 the point application of fertilizer tablets of Silvamix type in three treatments and calcic dolomite was performed into the rhizosphere of plants. Before fertilization and after three years of the experiment soil samples were taken from the organomineral zone of the root balls of plants and the condition of the soil environment on spread windrows and changes in pedochemical properties as a result of applied fertilization were evaluated. Three years after the windrow spreading the content of the majority of soil macrobiogenic elements N K Ca Mg is at the level of medium-high to high reserves and only the low phosphorus reserves pose a certain hazard. The organomineral substrate of spread windrows is a suitable growth .

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