خيارات البحث
النتائج 1 - 10 من 13
Surveillance du deperissement des forets en Belgique [pluie acide].
1985
Laitat E. | Impens R.
Critical loads and exceedances for eutrophication and acidification in Flanders
2002
Neirynck, J. | Langouche, D. | Ridder, K. de | Wiedman, T. | Roskams, P. (Institute for Forestry and Game Management, Geraardsbergen, (Belgium))
Critical loads were estimated for over more than 1400 receptors supporting forest vegetation in northern Belgium using simple mass balance method. Necessary data were derived from old historical soil database, recent data from forest surveys, meteo data, level I and II plots and regional studies concerning elemental sequestration in woody biomass. Deposition estimates were performed with the OPS-model, which had been validated with deposition measurements of N and S in 6 level II plots over the period 1994-1998. In addition, an edge enhancement factor was calculated to account for enhanced deposition in plots situated in forest edges
اظهر المزيد [+] اقل [-]Reclamation of a bare industrial area contaminated by non-ferrous metals: physico-chemical and biological evaluation of the durability of soil treatment and revegetation
1996
Vangronsveld, J. | Colpaert, J.V. | Tichelen, K.K. van (Limburgs Universitair Centrum, Universitaire Campus, B-3590, Diepenbeek (Belgium))
Reclamation of a bare industrial area contaminated by non-ferrous metals: in situ metal immobilization and revegetation
1995
Vangronsveld, J. | Van Assche, F. | Clijsters, H. (Limbergs Universitair Centrum, Universitaire Campus, 3590 Diepenbeek (Belgium))
Aquatic bryophytes for a spatio-temporal monitoring of the water pollution of the rivers Meuse and Sambre (Belgium)
1999
Vanderpoorten, A. (Faculte Universitaire des Sciences Agronomiques de Gembloux, Zoologie Generale and Appliquee, 2, Passage des Deportes, B-5030 Gembloux (Belgium))
Earthworm communities along a gradient of urbanization
1995
Pizl, V. | Josens, G. (Institute of Soil Biology, Academy of Sciences of the Czech Republic, Na Sadkach 7, CZ-37005 Ceske Budejovice (Czech Republic))
Source protection areas in Belgium: definition, operation and experience
1995
Verheyden, V.
Accumulation of air pollutants by a spruce forest in eastern Belgium
1987
Coenen, B. (Louvain Univ. (Belgium). Lab. de Chimie Inorganique et Nucleaire) | Ronneau, C. | Cara, J.
Contribution to the study of the macrophytic vegetation of the Semois river related to the global quality of the water and the aquatic environment
1995
Thoen, D. (Fondation Universitaire Luxembourgeoise, Arlon (Belgique)) | Roussel, L. | Nicolas, J.
Aquaculture in warm brewery effluents: a way to upgrade the used waters, the waste-heat and by-products [fish culture, in Belgium with African catfish and European eel]
1993
Vriens, L. | Muylder, E. de (Seghers Engineering, Willebroek (Belgium)) | Eyben, D.
