Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Joannes A. Janssens"'
Concepts of fen and bog re-examined in relation to bryophyte cover and the acidity of surface waters
Autor:
Joannes A. Janssens, Eville Gorham
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 61, Iss 1, Pp 7-20 (2014)
Studies of surface-water pH and bryophyte assemblages in 440 plots from five peatland regions across northern North America reveal a very distinct, two-fold division into fens with a pH mode at 6.76-7.00, in which Amblystegiaceae are prominent, and b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::981fdae41a563fb01b33090cc795a1e7
https://pbsociety.org.pl/journals/index.php/asbp/article/view/1154
https://pbsociety.org.pl/journals/index.php/asbp/article/view/1154
Publikováno v:
Quaternary Science Reviews. 58:77-82
Peatland ecosystems store about 500–600 Pg of organic carbon, largely accumulated since the last glaciation. Whether they continue to sequester carbon or release it as greenhouse gases, perhaps in large amounts, is important in Earth's temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a9d37a4fbc79ee09d20b85829e767e4
https://doi.org/10.1016/j.quascirev.2012.09.018
https://doi.org/10.1016/j.quascirev.2012.09.018
Publikováno v:
Quaternary Science Reviews. 26:300-311
A set of simple ecological models accounts well for the cumulative initiation of peatlands throughout North America in relation to glacial retreat. The most parsimonious form incorporates, first, a delay term to account for the lag during which newly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3543268ed623c6d9dad347c14434d6e2
https://doi.org/10.1016/j.quascirev.2006.08.008
https://doi.org/10.1016/j.quascirev.2006.08.008
Autor:
Eville Gorham, Joannes A. Janssens
Publikováno v:
Wetlands. 25:259-278
Analysis of 38 chemical elements in five peat cores from the mid-continent to the eastern coast of North America shows that the concentrations and rates of accumulation of chemical elements supplied by atmospheric deposition toSphagnum bog peats vary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c8c8bf0833156fe815be3bf2d4d2b2a
https://doi.org/10.1672/3
https://doi.org/10.1672/3
Autor:
Richard E. Andrus, Joannes A. Janssens
Publikováno v:
The Bryologist. 106:435-438
Sphagnum alaskense Andrus & Janssens, sp. nov. is described as a new species in section Sphagnum. It is a weakly to moderately minerotrophic species occurring from Alaska south to the state of Washington. Sphagnum alaskense differs from S. centrale o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::574d5a0290ca5e930b010ae75c2b4bfa
https://doi.org/10.1639/08
https://doi.org/10.1639/08
Publikováno v:
Canadian Journal of Botany. 81:429-438
We examined long-term rates of dry peat accumulation in 32 14C-dated cores from poor fens in Alaska, to bogs and fens in midcontinental North Dakota and Minnesota, to oceanic bogs in Maine and the Atlantic Provinces of Canada. Sites along this belt t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92ebb60f2c349622e87a9e239b5fdb27
https://doi.org/10.1139/b03-036
https://doi.org/10.1139/b03-036
Publikováno v:
Canadian Journal of Botany. 78:718-727
One hundred and thirty-five samples of surface water, associated with bryophyte plots distributed across 20 wetlands in Newfoundland, Nova Scotia, Ontario, Alaska, Maine, Minnesota, and New York, were analyzed for pH and 11 elements, several of them
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c58bed29e7c3736ba872bd1e1f1ed62e
https://doi.org/10.1139/cjb-78-6-718
https://doi.org/10.1139/cjb-78-6-718
Autor:
Eville Gorham, J. Gordon Ogden, Donald H. Waller, John K. Underwood, Bill Freedman, Wolfgang Maass, Joannes A. Janssens
Publikováno v:
Wetlands. 18:115-132
The percentage of wetlands in a catchment accounted for about half of the variance in transformed data for concentrations of dissolved organic carbon (DOC) in 42 Nova Scotian streams draining catchments with 11 different kinds of vegetation. Color in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01f3b8c61411b709de46f16def3d5532
https://doi.org/10.1007/bf03161449
https://doi.org/10.1007/bf03161449
Publikováno v:
Effects of Atmospheric Pollutants on Forests, Wetlands and Agricultural Ecosystems ISBN: 9783642708763
Peatlands are ubiquitous in northern landscapes, and decomposition of their plant remains produces complex, coloured organic acids that acidify their waters and those of the streams and lakes into which they drain. Fens with weakly acid surface water
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdfe4ab9bc939ef14c7b5bbacdcad21a
https://doi.org/10.1007/978-3-642-70874-9_36
https://doi.org/10.1007/978-3-642-70874-9_36
Autor:
Gerald A. Wheeler, Eville Gorham, Clifford M. Wetmore, Joannes A. Janssens, Paul H. Glaser, Frank D. Bowers
Publikováno v:
American Midland Naturalist. 110:62
The Red Lake Peatland, situated in N-central Minnesota, is the largest continuous mire in the northern portion of the contiguous United States. It consists of a mixture of ombrotrophic bogs and minerotrophic fens organized into a complex of highly di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8d9ef4b4d153270c91104f149a2f68d
https://doi.org/10.2307/2425214
https://doi.org/10.2307/2425214