Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Mark E. Fenn"'
Autor:
Sarah Jovan, Mark E. Fenn, Monica Buhler, Andrzej Bytnerowicz, Adrienne Kovasi, Martin Hutten, Elisa DiMeglio, Donald Schweizer
Publikováno v:
Ecological Indicators, Vol 122, Iss , Pp 107311- (2021)
Excess N deposition is a common stressor of ecological health. Sensitive biota, including many lichens, respond to small differences in atmospheric N deposition. For lands with a conservation mandate, obtaining sufficient N data to evaluate risks is
Externí odkaz:
https://doaj.org/article/1c34d597bf1b48fb91eb7863aeca4757
Autor:
Justin M. Valliere, Gary M. Bucciarelli, Andrzej Bytnerowicz, Mark E. Fenn, Irina C. Irvine, Robert F. Johnson, Edith B. Allen
Publikováno v:
Ecosphere, Vol 11, Iss 2, Pp n/a-n/a (2020)
Abstract Anthropogenic nitrogen (N) deposition is known to reduce plant diversity in ecosystems worldwide; however, effects on the diversity of Mediterranean‐type ecosystems—global hotspots of biodiversity—are relatively unexplored. In Californ
Externí odkaz:
https://doaj.org/article/361a65afae8c4c15ab0dda976895a2ba
Autor:
Christopher M. Clark, Michael D. Bell, James W. Boyd, Jana E. Compton, Eric A. Davidson, Christine Davis, Mark E. Fenn, Linda Geiser, Laurence Jones, Tamara F. Blett
Publikováno v:
Ecosphere, Vol 8, Iss 7, Pp n/a-n/a (2017)
Abstract Human activity has significantly increased the deposition of nitrogen (N) on terrestrial ecosystems over pre‐industrial levels leading to a multitude of effects including losses of biodiversity, changes in ecosystem functioning, and impact
Externí odkaz:
https://doaj.org/article/f264607420dd468fa2e23fc14d57a720
Publikováno v:
The Scientific World Journal, Vol 2, Pp 122-130 (2002)
Measurement of ionic deposition in throughfall is a widely used method for measuring deposition inputs to the forest floor. Many studies have been published, providing a large database of throughfall deposition inputs to forests. However, throughfall
Externí odkaz:
https://doaj.org/article/a36c0c9f206c459a8031b4615ed8f199
Publikováno v:
The Scientific World Journal, Vol 1, Pp 304-311 (2001)
Atmospheric deposition of nitrogen (N) in California ecosystems is ecologically significant and highly variable, ranging from about 1 to 45 kg/ha/year. The lowest ambient concentrations and deposition values are found in the eastern and northern part
Externí odkaz:
https://doaj.org/article/a126286014374cb6ab886f6b70c67cbd
Autor:
Mark E. Fenn, Mark A. Poth
Publikováno v:
The Scientific World Journal, Vol 1, Pp 433-439 (2001)
Virtually complete nitrification of the available ammonium in soil and nitrification activity in the forest floor are important factors predisposing forests in the San Bernardino Mountains of southern California to nitrogen (N) saturation. As a resul
Externí odkaz:
https://doaj.org/article/ad5c797a28b04f7ba8dd8056f5c12b98
Autor:
Kevin J Horn, R Quinn Thomas, Christopher M Clark, Linda H Pardo, Mark E Fenn, Gregory B Lawrence, Steven S Perakis, Erica A H Smithwick, Douglas Baldwin, Sabine Braun, Annika Nordin, Charles H Perry, Jennifer N Phelan, Paul G Schaberg, Samuel B St Clair, Richard Warby, Shaun Watmough
Publikováno v:
PLoS ONE, Vol 13, Iss 10, p e0205296 (2018)
Atmospheric deposition of nitrogen (N) influences forest demographics and carbon (C) uptake through multiple mechanisms that vary among tree species. Prior studies have estimated the effects of atmospheric N deposition on temperate forests by leverag
Externí odkaz:
https://doaj.org/article/d9af22fa213a492393c87e1c00f42599
Publikováno v:
Ecological Indicators, Vol 127, Iss, Pp 107727-(2021)
Anthropogenic nitrogen (N) and sulfur (S) deposition can negatively affect ecosystem functions and lichen biomonitors can be a cost-effective way to monitor air pollution exposure across the landscape. Interior dry forests of the southwestern United
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f38deb2a12a0d6010accfa7d9d49c35c
http://www.sciencedirect.com/science/article/pii/S1470160X21003927
http://www.sciencedirect.com/science/article/pii/S1470160X21003927
Autor:
Enrique R. Peña-Mendoza, Mark E. Fenn, Patricia Hernández de la Rosa, Armando Gómez Guerrero, Dionicio Alvarado Rosales
Publikováno v:
Revista Mexicana de Ciencias Agrícolas. :2793-2805
Se evaluaron los contenidos nutrimentales y el lavado de copa en los bosques de Abies religiosa, de San Miguel Tlaixpan (SMT), y Río Frío (RF), Estado de México. El trabajo tuvo dos partes. En la primera, se evaluó el contenido nutrimental en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::608fe9265f44c832ba7f4b49bcde09dd
https://doi.org/10.29312/remexca.v0i14.447
https://doi.org/10.29312/remexca.v0i14.447
Autor:
Yu-Mei Hsu, Kevin E. Percy, Mark E. Fenn, Diane Alexander, Witold Frączek, Andrzej Bytnerowicz, Susan Schilling, Allan H. Legge
Publikováno v:
Science of The Total Environment. 572:755-769
The 2011 Richardson wildland mega-fire in the Athabasca Oil Sands Region (AOSR) in northern Alberta, Canada had large effects on air quality. At a receptor site in the center of the AOSR ambient PM 2.5 , O 3 , NO, NO 2 , SO 2 , NH 3 , HONO, HNO 3 , N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b11e09cea8e20ca6777b2e45009a832e
https://doi.org/10.1016/j.scitotenv.2016.07.052
https://doi.org/10.1016/j.scitotenv.2016.07.052