Tuyển tập những bài báo cáo nghiên cứu khoa học hay nhất được đăng trên tạp chí JOURNAL OF FOREST SCIENCE đề tài: Production potential and ecological stability of mixed forest stands in uplands – VI. A beech/larch stand on a mesotrophic site of the Křtiny Training Forest Enterprise. | JOURNAL OF FOREST SCIENCE 53 2007 4 170-184 Production potential and ecological stability of mixed forest stands in uplands - VI. A beech larch stand on a mesotrophic site of the Krtiny Training Forest Enterprise V. Hurt P. Kantor Faculty of Forestry and Wood Technology Mendel University of Agriculture and Forestry Brno Brno Czech Republic ABSTRACT The paper is the 6th report on the production potential and stability of mixed forest stands in uplands. A mixed beech larch stand that was established by natural regeneration in 1934 to 1942 is assessed. The stand is situated at an altitude of 460 m above sea level. It has been left to its natural development since 1961. At that time the stand was characterized as an individually mixed diameter- and height-differentiated 25-year pole-stage stand. The proportion of larch and beech amounted to 40 and 17 respectively. Hornbeam 25 oak 11 and to a lesser extent birch 5 and spruce 3 also occurred in the stand. In the course of 42 years the proportion of larch in this stand without planned thinning measures decreased to 35 . On the other hand the proportion of beech increased to 39 . During all 5-year inventories the stand could be characterized as a stabilized one with high production potential. Its initial growing stock 63 m3 ha at an age of 25 years increased to 497 m3 ha at an age of 67 years in 2003. At present current volume increment amounts to to m3 ha year. Keywords beech larch oak hornbeam mixed stands natural development production mortality slenderness ratio Nine years ago in 1997 the project Production and ecological stability of mixed stands under anthropi-cally influenced conditions of uplands as a basis for the proposal of target species composition was presented in the Journal of Forest Science Lesnictví-Forestry No. 4. Results of the production potential and stability of five experimental stands in the Krtiny Training Forest Enterprise TFE were gradually analyzed in five studies Kantor Parik 1998 .
