TAILIEUCHUNG - Báo cáo lâm nghiệp: "Comparison of mycobiota of diverse aged spruce stands on former agricultural soil"

Tuyển tập những bài báo cáo nghiên cứu khoa học hay nhất được đăng trên tạp chí JOURNAL OF FOREST SCIENCE đề tài: Comparison of mycobiota of diverse aged spruce stands on former agricultural soil. | JOURNAL OF FOREST SCIENCE 55 2009 10 452-460 Comparison of mycobiota of diverse aged spruce stands on former agricultural soil V. Peskova1 F. Soukup1 J. Landa2 Forestry and Game Management Research Institute Strnady Czech Republic Prague Czech Republic ABSTRACT The mycological conditions on study plots established in forests growing on former agricultural farm lands were studied. In young spruce stand 8-10 years reduced and unstable spectrum of macromycetes was found. After approximately 50 years of forest growth the situation became stable and spectrum of macromycetes together with development of mycorrhizal status were similar to a situation found in stands on forest soils. Slightly increased occurrence of saproparasitic species of fungi . Heterobasidion annosum at others was observed in older growths. Keywords ectotrophic stability of forest species spectrum of macromycetes mycorrhizae former farm land health status of spruce Afforestation of soils that are not suitable for intensive agriculture is currently in the focus of interest. It is one of the most suitable methods of its economic utilization. The extent of area suitable for forestation is estimated to about tens or hundreds thousands of hectares Kacálek Bartos 2005 . These sites are mainly situated in hilly areas or at the foothills of mountains. Fungi play an important role in decomposition of organic matter in a litter. There are many species of fungi present in different stands according to their localization. In these conditions fungi form specific associations. Major part of these fungi species can form mycorrhizae . symbiosis with roots of trees. Mycorrhizae enable better resorption of minerals than any other fungi. Mycorrhizal symbioses beneficial associations between plants roots and fungi are important phenomenon in all debates about a nutrition and growth of trees. Stability and funcionality of forest ecosystems depend on aggregate impacts of biotic and abiotic factors. Numerous fungi .

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