TAILIEUCHUNG - Báo cáo lâm nghiệp: " Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of 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: Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of Krušné hory Mts. | JOURNAL OF FOREST SCIENCE 53 2007 10 452-461 Root system development and health condition of sycamore maple Acerpseudoplatanus L. in the air-polluted region of Krusné hory Mts. O. Mauer M. Pop E. Palátová Faculty of Forestry and Wood Technology Mendel University of Agriculture and Forestry Brno Brno Czech Republic ABSTRACT The paper presents results from a study of sycamore maple development health condition and growth in forest altitudinal vegetation zones FAVZ 6 and 7 occurring in pollution damage zones A and B in the air-polluted region of Krusné hory Mts. as compared with the trees of identical height in FAVZ 4 and 5 occurring in pollution damage zone D in the Bohemian-Moravian Upland. Sycamore maple develops a fully diversified root system. On spread mounds it creates only a superficial root system and its growth is retarded. The growth of sycamore maple is limited by the layer of humus horizons. If the layer thickness is over 20 cm the sycamore roots would grow into mineral horizons. Keywords sycamore maple root system humus afforestation mounds Sycamore maple is one of the noble broadleaved species. Its representation in the existing species composition of forest stands being rather low the study of the species and mainly of its root system has been paid little attention so far. Available data which are however of rather general character can be found mostly in dendrological works. Svoboda 1955 described the sycamore maple rooting as sturdy. Good anchorage with large-diameter roots reaching to a depth in the boulder terrain was described also by Amann 1967 Kavka 1995 and Úradnícek et al. 2001 . Kostler et al. 1968 judged the sycamore maple root system as poorly organized usually intensively branching and irregular. The authors opinions about the root system type vary. The sycamore maple root system is described either as a flat and heart-shaped anchor with distinct horizontal roots Kostler et al. 1968 or as a heart-shaped anchor Biebelriether 1966 Polomski .

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