Influence of a planting hole application of dolomitic limestone powder and basalt grit on the growth of Carpathian birch (Betula carpatica W. et K.) and soil chemistry in the air-polluted Jizerské hory Mts.
Kunes, I.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Lesnicka a Drevarska | Balcar, V.,Vyzkumny Ustav Lesniho Hospodarstvi a Myslivosti, Opocno (Czech Republic) | Zahradnik, D.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Lesnicka a Drevarska
The objective of the study was to evaluate the growth potential of Betula carpatica at an environmentally harsh mountain site and the response of this species to altered soil chemistry after dolomitic limestone and basalt grit applications. The Carpathian birch proved to be a suitable species for the replanting of extreme acidic mountain sites. It shows a low mortality rate, grows well in the clear-felled patches and soon forms a cover which is necessary for the reintroducing of more sensitive tree species. The application of dolomitic limestone and basalt grit resulted in the slower growth of Carpathian birch plantations. Liming raised soil reaction, sum of exchangeable bases, base saturation and cation exchange capacity, and reduced exchangeable Al content. On the other hand, liming decreased the amount of oxidizable soil organic matter and negatively affected soil N, exchangeable P and K. Basalt grit increased exchangeable P and K contents and raised soil reaction, however only slightly. The influence of basalt grit on the sum of exchangeable bases, base saturation and cation exchange capacity was less pronounced than liming. It also increased the proportion of exchangeable Al and reduced the content of soil N.
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