Nutrient levels in component of dendromass and their uptake by harvesting
2005
Bublinec, E.(Technicka univ., Zvolen (Slovak Republic). Lesnicka fakulta. Katedra prirodneho prostredia | Machava, J. | Gregor, J. | Pichler, V.
Sustainable development and management of forestry, mainly sustainable production can be limited by the uptake of nutrients -- taking dendromass. The main focus of this work was put on the relation between nutrient content in particular parts of dendromass and the forest soil. Chemical analyses showed that the nutrient contents in branches increase with the decreasing branches thickness. The highest ash content was recorded in a bark and then in leaves. Contents of K and P in the small wood biomass and leaves were 16 % and 75%, respectively. The most productive element of N represented even 83% of all supplies of available nutrients in the soil of the forest ecosystem. The accumulation of Ca and Mg in small wood reached only 2 -- 3% of the supply in the soil. On the base of these results, it is recommended to use whole-stem logging on the area with the low nutrient supply in the soil, on the poor substrate, on the soil with the limited geobiochemical cycle etc. or harvesting outside of a vegetative period.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил Slovak University of Agriculture in Nitra