Web2 de nov. de 2024 · The greater bioavailability of nitrogen (N), phosphorus (P) and potassium (K) in the Anthropocene has strongly impacted terrestrial plant communities. In northwest Europe, because high N ... WebAbstract. Rapid Asian industrialization has led to increased downwind atmospheric nitrogen deposition threatening the marine environment. We present an analysis of the sources and processes controlling atmospheric nitrogen deposition to the northwestern Pacific, using the GEOS-Chem global chemistry model and its adjoint model at 1/2° × 2/3° horizontal …

Nitrogen saturation in northern forest ecosystems (Journal Article ...

Web1 de fev. de 2013 · Levels of carbon monoxide, nitrogen oxides, sulphur dioxide, particles, ozone, benzene, 1,3-butadiene and polycyclic aromatic hydrocarbons are monitored at many of these stations. The fifth annual Northern Ireland Environmental Statistics Report was published on the DOENI website yesterday (January 31). Web11 de abr. de 2024 · In the study, researchers measured the carbon-to-nitrogen ratio in marine microorganisms living in a "dead zone" off of Mexico's northwest coast. The … ipack regionalanästhesie

Nitrogen Saturation in Northern Forest Ecosystems BioScience

WebA long-term field experiment was initiated to simulate chronic atmospheric N deposition, a widespread phenomenon in industrial regions of the world. Eight years of experimental nitrate ( $${\\text{NO}}_{\\text{3}}^-- $$ ) additions (3 g $${\\text{NO}}_{\\text{3}}^-- $$ -N m−2 per year) to four different northern hardwood forests located along a 500 km geographic … Web12 de mai. de 2014 · Soil available nitrogen (SAN) was significantly lower under HG (644 kg N hm−2) than under other treatments (725–731 kg N hm−2) in the 0–50 cm. ... Frank AB, Tanaka DL, Hofmann L, Follett RF (1995) Soil carbon and nitrogen of northern Great-Plains grasslands as influenced by long-term grazing. J Range Manage 48: 470–474 ... Web@article{osti_7194153, title = {Nitrogen saturation in northern forest ecosystems}, author = {Aber, J D and Nadelhoffer, K J and Steudler, P and Melillo, J M}, abstractNote = {This article describes ways in which excess nitrogen from fossil fuel combustion may stress the biosphere. Nitrogen emissions can have a direct effect on air quality through both the … opening to pow