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Resultados 301-310 de 347
Base cation supply in spruce and beech ecosystems of the Strengbach catchment (Vosges mountains, N-E France)
1998
Fichter, J. (Equipe Cycles Biogeochimiques de l'Unite Ecosystemes Forestiers INRA, Champenoux (France).) | Dambrine, E. | Turpault, M.P. | Ranger, J.
Inhibition of chlorophyll synthesis and enzymes of nitrogen assimilation by selenite in excised maize leaf segments during greening
1998
Jain, M. (Devi Ahilya Univ., Indore (India). School of Biochemistry) | Gadre, R.P.
Pollution prevention in Colorado commercial greenhouses
1998
Panter, Karen L. | Newman, Steven Earl | Waskom, R. M (Reagan McTier)
Lamellar minispheres - experimental device for the simulation of the impacts of elevated CO2. Technical report
1998
Urban, O. | Pavelka, M. | Janous, D. (Akademie Ved, Brno (Czech Republic). Ustav Ekologie Krajiny)
Research of basic issues of supraregional biocentre in Knehyne - Certuv Mlyn, the Moravian-Silesian Beskids Mts. [Czech Republic]
1998
Tesar, V. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Fakulta Lesnicka a Drevarska)
The planned supraregional biocentre (SRBC) is a support to the system of landscape ecological stability. The sense of this long-term complex project consists in learning features of the ecotope and dynamics of the forest in its present natural and cultural forms and in all existing stages. A draft management plan will be worked out on this basis for the planned SRBC forest area of 1000 hectares, focused on the dynamic ecological stability.
Mostrar más [+] Menos [-]A study of the effect of the growth activity of grasses on accumulation and losses of organic matter and nutrients on deforested sites [Czech Republic]
1998
Fiala, K. | Tuma, I. | Holub, P. (Akademie Ved, Brno (Czech Republic). Ustav Ekologie Krajiny)
Analysis of control factors of the development of forest ecosystems at the higher altitudes of the Moravian-Silesian Beskids Mts. [Czech Republic]
1998
Kulhavy, J. | Klimo, E. | Hadas, P. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic))
Water balance and erosion intensity in mid-European small forested basins
1998
Jarabac, M. | Chlebek, A. (Vyzkumny Ustav Lesniho Hospodarstvi a Myslivosti, Frydek-Mistek (Czech Republic))
Analysis of incidence of extraordinary sums of precipitation at the Bily Kriz station [the Moravian-Silesian Beskids Mts., Czech Republic] in 1997
1998
Roznovsky, J. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic))
Physiological aspects of the health state of Norway spruce using different silvicultural concepts
1998
Kmet, J. | Jaloviar, P. (Technicka Univ., Zvolen (Slovak Republic). Lesnicka Fakulta)
The sample trees from two stands managed by different management systems - shelterwood and selection systems, and two generations within each stand, were compared. The evaluation of the potential acidity and conductivity of dry-mass extracts (KSE) proved an adverse effect of environment on the maternal stand in the shelterwood forest. The KSE-values are systematically higher in samples taken from the young as well as mature sample trees in the selection forest. Despite the limited duration and extent of the investigations, a better ecological stability of the selection forest as compared with the shelterwood one was observed.
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