Ecosystems in the far north, including arctic and boreal biomes, are a globally significant
pool of carbon (C). Global change is proposed to influence both C uptake and release in …

Atmospheric nitrogen (N) deposition is a recognized threat to plant diversity in temperate
and northern parts of Europe and North America. This paper assesses evidence from field …

Human activity in the last century has led to a significant increase in nitrogen (N) emissions
and atmospheric deposition. This N deposition has reached a level that has caused or is …

The emissions of ammonia (NH3) and nitrogen oxides (NOx) have strongly increased in
Europe in the second half of the 20th century. Ammonia is volatilized from intensive …

Cyclic vole populations, defined as showing fairly regular 3–4 yr density fluctuations but with
variable amplitudes, were monitored in boreal Sweden in spring and fall 1971–2002 …

The critical load concept is used to establish the deposition levels which ecosystems can
tolerate without significant harmful effects. Here we summarize work within the Swedish …

Many studies have focused on the impact of nitrogen deposition on plants, but due to
technical limitations, research on the responses of forest canopy to manipulated nitrogen …

Forests are an important biome that covers about one third of the global land surface and
provides important ecosystem services. Since atmospheric deposition of nitrogen (N) can …

从3 个方面论述了氮沉降对森林生物多样性影响:(1) 森林植物多样性, 包括乔木层植物,
林下层植物和隐花植物;(2) 土壤微生物多样性, 主要是细菌和真菌;(3) 森林动物多样性 …

Nitrogen (N) deposition rates are increasing globally due to anthropogenic activities. Plant
community responses to N are often attributed to altered competitive interactions between …