Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Gunnar Abrahamsen"'
Publikováno v:
Atmospheric Environment. 38:6231-6237
The outer bark being enveloped by and grown into the tree trunk (bark pocket), acts as a passive biomonitor which readily accumulates pollution on its surface. Analysed with stable lead isotopes, these environmental historical archives are very stron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5312523760a1ab09f0830f3f4eb11ffe
https://doi.org/10.1016/j.atmosenv.2004.06.041
https://doi.org/10.1016/j.atmosenv.2004.06.041
Publikováno v:
Scandinavian Journal of Forest Research. 19:38-47
The objective of this study was to quantify the effects of high nitrogen (N) inputs on N cycling in a 35–45-yr-old Scots pine (Pinus sylvestris L.) forest. Nitrogen was added annually (single doses) as NH4NO3 in doses of 0 (N0), 30 (N1) and 90 (N2)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45d0a857b0e1745233414b14b3812a73
https://doi.org/10.1080/02827580310019572
https://doi.org/10.1080/02827580310019572
Autor:
Gunnar Abrahamsen, Petter Nilsen
Publikováno v:
Forest Ecology and Management. 174:221-232
Results from two fertilizer experiments in coniferous forest in south and southeast Norway with applications of nitrogen (N), magnesium (Mg) and phosphorous (P) are presented. A Scots pine stand has been fertilized annually for 9 years and one Norway
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c935434a9d58c6e543df7b6b43680bbf
https://doi.org/10.1016/s0378-1127(02)00024-5
https://doi.org/10.1016/s0378-1127(02)00024-5
Publikováno v:
Soil Science Society of America Journal. 65:1812-1823
High inputs of N to N-limited forests may disturb the nutrient balance of the plant-soil system. The objective of this study was to quantify the effects of N and Mg applications on soil water chemistry in a 35- to 45-yr-old Scots pine (Pinus sylvestr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b17cbd13b02a3085286524d8515a4a7
https://doi.org/10.2136/sssaj2001.1812
https://doi.org/10.2136/sssaj2001.1812
Acid rain is a serious international environmental problem. Scandinavian forests have suffered especially severe damage, and have been the focus of considerable research on the causes and impacts of atmospheric pollution. This book presents the resul
Autor:
Arne O. Stuanes, Gunnar Abrahamsen
Publikováno v:
Nutrient Cycling in Agroecosystems. 52:171-178
Nitrogen is brought into natural ecosystems from the atmosphere through N-fixation and deposition of NH4+ and NO3- as wet and dry deposition. N is lost from terrestrial ecosystems unaffected by human activities by leaching or as gas, but the losses f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5283fa7d821ed452822947943eb4945a
https://doi.org/10.1023/a:1009715027516
https://doi.org/10.1023/a:1009715027516
Publikováno v:
Soil Biology and Biochemistry. 27:1401-1408
The fluxes and soil atmospheric concentrations of N2O were studied in field lysimeters containing reestablished soil profiles from 100-y-old Scots pine (Pinus sylvestris) forest of Norway. The experiment was designed as a full factorial with 3 N-fert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9111567f464170ea21785432c2f38849
https://doi.org/10.1016/0038-0717(95)00078-s
https://doi.org/10.1016/0038-0717(95)00078-s
Publikováno v:
Soil Biology and Biochemistry. 27:871-880
N fertilization and soil acidification effects on the uptake of atmospheric CH4 and soil CH4 concentrations were studied in lysimeter soil from a 100-y-old Scots pine forest in Norway. N fertilization with NH4NO3 significantly reduced the uptake of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fc46968af3edc46d9aff8e12be714c3
https://doi.org/10.1016/0038-0717(95)00017-9
https://doi.org/10.1016/0038-0717(95)00017-9
Autor:
Petter Nilsen, Gunnar Abrahamsen
Publikováno v:
Water, Air, & Soil Pollution. 85:1143-1148
A field plot experiment on fertilization with N, Mg and P in Scots pine forest was established. The experiment had a factorial design with three levels of N (0, 30 and 90 kg ha−1), two levels of Mg (0 and 1.5 kg ha−1) and two levels of P (0 and 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d716bc7f13b9849a34cad301bac407df
https://doi.org/10.1007/bf00477135
https://doi.org/10.1007/bf00477135
Publikováno v:
Water, Air, & Soil Pollution. 73:29-48
The mobility of Pb, Zn, Cd and Cu was examined at two adjacent experimental plots at amli, southern Norway, B-1 and B-2. Both experiments were established on the same glacifluvial deposits, with forest consisting of uniform stands of Pinus sylvestris
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5da71a3cded22e2ecc75db82301d58a3
https://doi.org/10.1007/bf00477974
https://doi.org/10.1007/bf00477974