tailieunhanh - Báo cáo khoa học: "Distribution of oak species in the Czech Republic"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Distribution of oak species in the Czech Republic. | 290s Ann Sci For 1993 50 Suppl 1 29ŨS-293S Elsevier INRA Note Distribution of oak species in the Czech Republic J Kobliếek Department of Forest Botany and Phytocenology Faculty of Forestry University of Agriculture Zemedelska 3 613 00 Brno Czech Republic Summary Only 4 native species of oaks were known in Czechoslovakia until 1974 namely Quer-cus cerris Q petraea Q pubescens and o robur. In that year Magic published a paper in which he quoted another 5 oak species from Slovakia. During my study in the Czech Republic I have found in addition to the above mentioned species Quercus dalechampii Q polycarpa Q virgiliana and very rarely o frainetto but not Q pedunculiflora. The newly discovered oak species are concentrated particularly in southern and southwestern Moravia. Quercus dalechampii Quercus polycarpa Quercus virgiliana Resume Repartition des chênes en République tchèque. Quatre espèces de chênes ont été reconnues en Tchécoslovaquie jusqu en 1974 Quercus cerris Q petraea Q pubescens et Q robur. La même année Magic publia un article dans lequel il mentionna 5 espèces supplémentaires en Slovaquie. Au cours de mon étude j ai reconnu d autres espèces en république tchèque en plus de celles déịà évoquées. II s agit de Quercus dalechampii Q polycarpa Q virgiliana et plus rarement Q frainetto. Q pedunculiflora n a pas été rencontre. Ces espèces récemment découvertes sont con-centrées dans la partie sud et sud-ouest de la Moravie. Quercus dalechampii Quercus polycarpa Quercus virgiliana INTRODUCTION I have been concerned with oaks since 1974. At that time only 4 native species of oak were known in Czechoslovakia viz Quercus cerris L o petraea Marrusch-ka Liebl Q pubescens Wil Id and Q robur L. In the 1970s however some interesting facts appeared from neighbouring countries. Schwarz 1964 reported Quer-cus dalechampii Ten from Hungary and Austria as well as Q frainetto Ten Q polycarpa Schur and Q virgiliana Ten from Hungary but he did not mention these species in .