خيارات البحث
النتائج 251 - 260 من 322
Fluxes of NO3-, NH4+, NO, NO2, HNO3-, N2O and organic N in an old Danish beech forest [HNO3]
1999
Rasmussen, L. | Beier, C. | Pilegaard, K. | Ambus, P. | Mikkelsen, T. | Jensen, N.O. (Risoe National Lab., Roskilde (Denmark)) | Kjoeller, A. | Ladekarl, U.L.
Changed tree nutrient status, soil conditions, parasite attacks and earthworm performance in afforestation plots treated with N
1999
Flueckiger, W. | Hiltbrunner, E. | Braun, S.
Investigating the use of larger scale maps for mapping the potential sensitivity of surface waters to acidification
1999
Ullyett, J.M. (Institute of Terrestrial Ecology, Huntingdon (UK)) | Hornung, M. | Hall, J.R. | Kernan, M.
High immobilization and stabilization of ammonium in Danish heath moor layers?
1999
Kristensen, H.L. (Danmarks Miljoeundersoegelser, Silkeborg (Denmark))
Effect-based control strategies: what do we need in the future?
1999
Grennfelt, P.
Pilot study on the relationship between defoliation and critical loads exceedance in Poland
1999
Mill, W. | Wawrzoniak, J.
Critical load of raised bogs in Denmark
1999
Risager, M. (Copenhagen Univ. (Denmark))
Changes of epicuticular waxes due to forest latent damage caused by air pollution
1999
Bednarova, E. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka a Drevarska Fakulta)
Water balance in the spruce mountain ecosystem
1999
Tuzinsky, L. (Technicka Univ., Zvolen (Czech Republic). Lesnicka Fakulta)
The influence of increased nitrogen availability on the growth and content of elements in the aboveground biomass of Calamagrostis villosa
1999
Holub, P. (Akademie Ved, Brno (Czech Republic). Botanicky Ustav)