Zobrazeno 1 - 10
of 63
pro vyhledávání: '"A.W. Boxman"'
Publikováno v:
Science of the Total Environment, 768, 1-13
Science of the Total Environment, 768:144356. Elsevier
Science of the Total Environment, 768, pp. 1-13
Science of the Total Environment, 768:144356. Elsevier
Science of the Total Environment, 768, pp. 1-13
High nitrogen (N) deposition levels, currently present in many industrial and agricultural regions of the world, can strongly affect the functioning of forest ecosystems. In a pine forest with strong N leaching, located in the Netherlands, we studied
Publikováno v:
Biogeochemistry. 113:467-479
To study the long-term fate of deposited ammonium (NH4 +) in a Scots pine forest stand under high nitrogen (N) deposition in the Netherlands we re-sampled the plots of a 15N tracer experiment with high (i.e. ambient) and lowered N deposition in this
Publikováno v:
Environmental Pollution, 156, 3, pp. 1252-1259
Environmental Pollution, 156, 1252-1259
Environmental Pollution, 156, 1252-1259
In a Scots pine forest the throughfall deposition and the chemical composition of the soil solution was monitored since 1984. (Inter)national legislation measures led to a reduction of the deposition of nitrogen and sulphur. The deposition of sulphur
Publikováno v:
University of Copenhagen
Environmental impacts on forest ecosystems can be studied by manipulating energy, water, and element input or by changing the internal element cycling. In practice, the intended manipulations in a complex ecosystem such as a forest are followed by un
Publikováno v:
Forest Ecology and Management. 101:155-163
In a highly N-saturated Scots pine stand atmospheric N input to the forest floor was reduced to pre-industrial levels by means of a transparent roof and application of clean, artificial throughfall water. The N input was reduced from ≈ 60 kg N ha
Autor:
Albert Tietema, Richard F. Wright, Filip Moldan, Patrick Schleppi, Bridget A. Emmett, A.W. Boxman, Michael Bredemeier, Per Gundersen
Publikováno v:
University of Copenhagen
The effect of changes in dissolved inorganic nitrogen (N) deposition on ecosystem functioning was investigated in the NITREX (NITRogen saturation EXperiments) project. Field-scale manipulation experiments were carried out over four to six years in se
Publikováno v:
Biochemistry, 34, 19-44. American Chemical Society
The stable isotope15N was added as (15NH4)2SO4 to throughfall water for one year, to study the fate of the deposited nitrogen at different levels of N deposition in two “N saturated” coniferous forests ecosystems in the Netherlands. The fate of t
Autor:
Michael Bredemeier, Bridget A. Emmett, A.W. Boxman, Richard F. Wright, O.J. Kjønaas, Jan G. M. Roelofs, Arne O. Stuanes, Hans Hultberg, N. van Breemen, Per Gundersen, Filip Moldan, Albert Tietema, Patrick Schleppi, K. Blanck
Publikováno v:
Water, Air & Soil Pollution, 85, 3, pp. 1623-1628
Water, Air & Soil Pollution, 85, 1623-1628. Kluwer academic publ
Water, Air & Soil Pollution, 85, 1623-1628. Kluwer academic publ
In large regions of Europe and eastern North America atmospheric deposition of inorganic nitrogen (N) compounds has greatly increased the natural external supply to forest ecosystems. This leads to N saturation, in which availability of inorganic N i
Publikováno v:
Forest Ecology and Management 71 (1995)
Forest Ecology and Management, 71, 7-29
Forest Ecology and Management, 71, 7-29
Atmospheric inputs of nitrogen and sulphur were reduced to pre-industrial levels in a nitrogen and sulphur saturated Scots pine (Pinus sylvestris) and Douglas fir (Pseudotsuga menziesii) stand in the Netherlands. Starting in 1989, throughfall water w
Publikováno v:
Forest Ecology and Management. 68:39-45
In a Scots pine stand atmospheric depositions of nitrogen and sulphur were reduced to preindustrial levels by throughfall interception by means of a roof. The experiment is now into its third year. The soil solution responded rapidly. NH4+ and S conc