It has been recognized for a long time that the overstorey composition of a forest partly
determines its biological and physical–chemical functioning. Here, we review evidence of …

Microorganisms play important roles in the nitrogen cycles of various ecosystems. Research
has revealed that a greater diversity of microorganisms is involved in the nitrogen cycle than …

Bacteria and fungi were isolated from an acid forest soil in which nitrification occurred via a
heterotrophic pathway. Enrichment of soil in a liquid inorganic salts medium, containing β …

The objective of this review is to remedy the lack of knowledge about the expected
relationship between the irrigation techniques (flood irrigation, sprinkler irrigation, surface …

Nitrification by soil nitrifiers may result in substantial losses of applied nitrogen through NO
3− leaching and N 2 O emission. The biological inhibition of nitrification by crop plants or …

Despite long-term enhanced nitrogen (N) inputs, forests can retain considerable amounts of
N. While rates of N inputs via throughfall and N leaching are increased in coniferous stands …

Tree girdling is a common practice in forestry whenever trees are to be killed without felling.
The effect of tree girdling on soil nitrogen (N) mineralisation was estimated in both an old …

A 2‐yr phytotron study was conducted to investigate the intra‐and inter‐specific competitive
behaviour of juvenile beech (Fagus sylvatica) and spruce (Picea abies). Competitiveness …

We studied the effect of tree species on nitrification in five young plantations and an old
native beech coppice forest at the Breuil experimental site in central France. The potential …

We compared N fluxes in a 150-year-old Fagus sylvatica coppice and five adjacent 25-year-
old plantations of Fagus sylvatica, Picea abies, Quercus petraea, Pinus laricio and …