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L' etat des forets en Europe.
1994
Haemmerli F. | Vogel J. | Volz R.
Silver fir decline in the Vosges mountains (France): role of climate and silviculture.
1989
Becker M. | Landmann G. | Levy G.
[State of forests in Europe]
1994
Haemmerli, F. | Vogel, J. | Volz, R.
Simulation of effects of atmospheric ethylene on tree leaf shedding
1989
Sawada, S. | Hazama, Y. | Hayakawa, T. (Department of Biology, Faculty of Science, Hirosaki University, Hirosaki 036 (Japan))
The state of transboundary air pollution: 1989 update
1990
The state of transboundary air pollution: 1992 update. Report prepared within the framework of the Convention on Long-Range Transboundary Air Pollution
1993
Nutrient stress in young Scots pines suffering from needle loss in a dry heath forest
1990
Tikkanen, E. (Lapland Univ., Rovaniemi (Finland). Arctic Centre) | Raitio, H.
[The state of transboundary air pollution: 1989 update]
1991
[The state of transboundary air pollution: 1992 update]
1993
Some aspects of interpretation of forest trees defoliation data
1995
Bogataj, N. (Forestry Inst. of Slovenia, Ljubljana (Slovenia))
The evaluation of data on the forest tree condition is weak point in forest decline monitoring as it enables only a very rough estimation of the state of forest health. The paper analyses the interpretation of the forest tree defoliation data in order to estimate their relevance and applicability. Quality control results of defoliation assessment in Slovenia are presented and the state of defoliation with its changes in the year 1987, 1991, 1993, 1994 on the 16 km grid.
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