Web1 de jun. de 1989 · Nitrogen Saturation in Northern Forest Ecosystems: Excess nitrogen from fossil fuel combustion may stress the biosphere Get access John D. Aber, Knute J. … Web1 de jun. de 1989 · Register. Nitrogen Saturation in Northern Forest Ecosystems: Excess nitrogen from fossil fuel combustion may stress the biosphere - 24 Hours access. EUR €36.00. GBP £32.00.

Soil Nitrogen - an overview ScienceDirect Topics

http://jwdawebserver.com/northern/about-us/ WebEight 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 … aetssiph aetna.com

The hidden culprit behind nitrogen dioxide emissions

Web19 de mai. de 2024 · Nitrogen isotopes have the potential to trace changes in N sources in this region. The δ 15 N of shallow subsurface nitrate in the northern South China Sea is … 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 ... 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 … aettesup