TAILIEUCHUNG - Báo cáo lâm nghiệp: "Influence of pulverized limestone and amphibolite mixture on the growth performance of Alnus incana (L.) Moench plantation on an acidified mountain site"

Tuyển tập những bài báo cáo nghiên cứu khoa học hay nhất được đăng trên tạp chí JOURNAL OF FOREST SCIENCE đề tài: Influence of pulverized limestone and amphibolite mixture on the growth performance of Alnus incana (L.) Moench plantation on an acidified mountain site. | JOURNAL OF FOREST SCIENCE 55 2009 10 469-476 Influence of pulverized limestone and amphibolite mixture on the growth performance of Alnus incana L. Moench plantation on an acidified mountain site I. Kunes1 V. Balcar3 T. Benesová1 M. Balas1 J. Zadina1 D. Zahradnik1 J. Vítámvás1 D. Kacálek3 O. Spulák3 M. Jakl2 J. Jaklova Dytrtová2 V. Podrazsky1 1Faculty of Forestry and Wood Sciences Czech University of Life Sciences in Prague Prague Czech Republic Faculty of Agrobiology Food and Natural Resources Czech University of Life Sciences in Prague Prague Czech Republic 3Forestry and Game Management Research Institute Strnady Opocno Research Station Opocno Czech Republic ABSTRACT A young speckled alder Alnus incana L. Moench stand was planted on a tract clear-felled due to air pollution and located on a summit plateau of the Jizerské hory Mts. Central Europe Czech Republic at an altitude of 950 m . The aim of the experiment was to test the suitability of Alnus incana to form preparatory stands covering the site and thus enabling the reintroduction of more sensitive target species. A potential of Alnus incana to respond to slow-release fertilizing was tested as well. The control treatment showed sufficient growth dynamics nevertheless the fertilization significantly promoted the growth documented by height height increment and stem-base diameter . If some limitations of alder such as high light requirements are respected the speckled alder can be recommended as a suitable species for preparatory stands even in the 7th and 8th altitudinal vegetation zones especially when fertilized. Keywords Jizerské hory Mts. chemical amelioration biological amelioration initial fertilizing pioneer species height increment mortality crown diameter stem-base diameter Norway spruce Picea abies L. Karst. is naturally a principal tree species in the upper and summit parts of the Jizerske hory Mts. nonetheless a broadleaved admixture such as European beech Fagus sylvatica L. rowan Sorbus .

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