Ecological state of Krasnoyarsk suburban forests
2009
Skripalchshikova, L.N. | Tatarintsev, A.I. | Zubareva, O.N. | Perevoznikova, V.D. | Stasova, V.V. | Greshilova, N.V. | Milyutin, L.I. (ed.)
Industrial and recreation effects on pine (Pinus) and birch (Betula) forests are studied in the suburban zone of Krasnoyarsk. Accumulation of industrial pollutants on needle (leaf) surfaces and inside their biomass exceed the baseline meanings in 5-7 times. Birch leaves (BL) and pine needles (PN) contain 8.2-36.1 milli gram/kg and 2.7-14.8 mg/kg of F respectively placing in a zone of aluminium smelter. The maximum N content is 14.3 of dry matter in PN and it is 28.0 mg/g in BL that exceeds the baseline level in 1.12 and 1.3 times respectively. Cambium cells divide less actively and during a shorter period under long industrial and recreation loads, that leads to a significant decrease of annual wood increment (AWI). At the same time late tracheid content in AWI decreases, their radial sizes decrease and cell gage of late wood also lowers. Pine plantations of the suburban zone are characterized as suppressed and strongly suppressed and they have a various degradation level. Birch ones have a tolerable status in compare with pine forests. Both have a high level of recreation digression. A species composition and a structure of living ground layer change under recreation forest utilization.
Afficher plus [+] Moins [-]Mots clés AGROVOC
Informations bibliographiques
Cette notice bibliographique a été fournie par Central Scientific Agricultural Library
Découvrez la collection de ce fournisseur de données dans AGRIS