Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Thomas G. Siccama"'
Autor:
Daniel J. Vogt, Robert L. Edmonds, Joel P. Tilley, Whendee L. Silver, Kristiina A. Vogt, Thomas G. Siccama, Sandra Brown
Publikováno v:
Soil Management and Greenhouse Effect ISBN: 9780203739310
Author(s): Vogt, KA; Vogt, DJ; Brown, S; Tilley, JP; Edmonds, RL; Silver, WL; Siccama, TG | Abstract: Analysis and models of the global carbon budget suggest that soils may play an important role in sequestering carbon in ecosystems. On a global scal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ca6348f0ed99092e0b7a1b7dd09bda7
https://escholarship.org/uc/item/80v004pw
https://escholarship.org/uc/item/80v004pw
Publikováno v:
Canadian Journal of Forest Research. 44:1515-1524
The decomposition of coarse woody debris contributes to forest nutrient sustainability and carbon (C) balances, yet few field studies have been undertaken to investigate these relationships in northern hardwood forests. We used a paired-sample approa
Publikováno v:
Forest Ecology and Management. 259:1416-1426
This study was designed to answer questions about the patterns of understory diversity in managed forests of southern New England, and the factors that appear associated with those patterns. At the landscape-level, we used plot data to answer questio
Publikováno v:
Biogeochemistry. 100:3-20
Liming has been used to mitigate effects of acidic deposition in forest ecosystems. This study was designed to examine the effects of calcium (Ca) supply on the spatial patterns and the relations between soil and soil solution chemistry in a base-poo
Autor:
Timothy J. Fahey, Thomas G. Siccama, James B. Shanley, Natalie L. Cleavitt, Scott W. Bailey, Byung Bae Park, Ruth D. Yanai
Publikováno v:
Ecosystems. 11:325-341
Losses of soil base cations due to acid rain have been implicated in declines of red spruce and sugar maple in the northeastern USA. We studied fine root and aboveground biomass and production in five northern hardwood and three conifer stands differ
Autor:
A. Kulmatiski, Phillip M. WargoP.M. Wargo, Thomas G. Siccama, Daniel J. Vogt, Kristiina A. Vogt, Ragnhildur Sigurdardottir, Joel P. TilleyJ.P. Tilley, Dirk LudwigD. Ludwig
Publikováno v:
Canadian Journal of Forest Research. 37:1574-1585
We determined responses of red spruce ( Picea rubens Sarg.) – balsam fir ( Abies balsamea (L.) Mill.) forests to 6 years of nitrogen (N), calcium (Ca), and N + Ca treatments (100, 160, and 260 kg·ha–1·year–1 of N, Ca, and N + Ca, respectively
Autor:
Gene E. Likens, Thomas W. Sherry, Chris E. Johnson, Thomas G. Siccama, Paul A. Schwarz, E. Binney GirdlerE.B. Girdler, Timothy J. Fahey, Ellen G. Denny
Publikováno v:
Canadian Journal of Forest Research. 37:737-749
We quantified the dynamics of the tree stratum at Hubbard Brook Experimental Forest (HBEF), New Hampshire, to examine why live biomass reached a plateau in about 1980. Total aboveground biomass increased from 209 Mg·ha–1 in 1981 to 216 Mg·ha–1
Autor:
Andrew J. Friedland, Andrew W. Schroth, Benjamin C. Bostick, Thomas G. Siccama, James M. Kaste
Publikováno v:
Soil Science Society of America Journal. 70:1688-1698
Although legislation in the late 1970s significantly reduced atmospheric lead (Pb) inputs to ecosystems in North America, organic (O) horizons in forests of the northeastern USA still contain up to 30 kg of gasoline-derived Pb ha{sup -1}. The residen
Autor:
Christopher Eagar, Thomas G. Siccama, Charles T. Driscoll, Joel D. Blum, Timothy J. Fahey, Amanda Ash Dasch
Publikováno v:
Biogeochemistry. 80:21-41
The use of strontium isotopes and ratios of alkaline earth elements (i.e., 87Sr/86Sr and Ca/Sr) to trace Ca sources to plants has become common in ecosystem studies. Here we examine the relative uptake of Ca and Sr in trees and subsequent accumulatio