Zobrazeno 1 - 10 of 38 pro vyhledávání: '"Marc G. Kramer"'
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Akademický článek
High-elevation snowpack loss during the 2021 Pacific Northwest heat dome amplified by successive spring heatwaves
Autor: Luke Reyes, Marc G. Kramer
Publikováno v: npj Climate and Atmospheric Science, Vol 6, Iss 1, Pp 1-12 (2023)
Abstract A heatwave in June 2021 exposed Pacific Northwest (PNW) snowpack to record temperatures, allowing us to probe seasonal snowpack response to short-term heat extremes. Using high-resolution contiguous snowpack and temperature datasets (daily 1
Externí odkaz: https://doaj.org/article/f73b51c14a604d41bcea240adc7a65d3
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3
Depth trends of soil organic matter C:N and 15N natural abundance controlled by association with minerals
Autor: Marc G. Kramer, Anthony K. Aufdenkampe, Kate Lajtha
Publikováno v: Biogeochemistry. 136:237-248
Plant residues show carbon:nitrogen (C:N) decreases, 15N isotopic enrichment and preferential loss of labile substrates during microbial decay. In soil profiles, strikingly similar patterns of decreasing C:N and 15N isotopic enrichment with increasin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0401a332d60c6f9082677c93870c8892
https://doi.org/10.1007/s10533-017-0378-x
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4
The Ecology of Soil Carbon: Pools, Vulnerabilities, and Biotic and Abiotic Controls
Autor: Susan E. Crow, Robert B. Jackson, Gervasio Piñeiro, Marc G. Kramer, Kate Lajtha, Gustaf Hugelius
Publikováno v: Annual Review of Ecology, Evolution, and Systematics. 48:419-445
Soil organic matter (SOM) anchors global terrestrial productivity and food and fiber supply. SOM retains water and soil nutrients and stores more global carbon than do plants and the atmosphere combined. SOM is also decomposed by microbes, returning
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2086a5f802a6dcd6f3b46c48e0a0604
https://doi.org/10.1146/annurev-ecolsys-112414-054234
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5
Dissolved organic matter retention in volcanic soils with contrasting mineralogy: a column sorption experiment
Autor: Jonathan Sanderman, Marc G. Kramer
Publikováno v: Biogeochemistry. 135:293-306
There is an increasing recognition that sorption and precipitation reactions between the dissolved phase of organic matter and reactive minerals and metals found in soils are an important carbon stabilization mechanism. We explored the relative impor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3bbb314360741cd043c21458c77eeba
https://doi.org/10.1007/s10533-017-0374-1
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6
A hydrogeologic framework for characterizing summer streamflow sensitivity to climate warming in the Pacific Northwest, USA
Autor: Brian P. Staab, S. Lewis, Marc G. Kramer, Mohammad Safeeq, Gordon E. Grant
Summer streamflows in the Pacific Northwest are largely derived from melting snow and groundwater discharge. As the climate warms, diminishing snowpack and earlier snowmelt will cause reductions in summer streamflow. Most regional-scale assessments o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2208be3d21672cc5c4543428d2a70a0
https://www.hydrol-earth-syst-sci.net/18/3693/2014/
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7
Chronic nitrogen additions suppress decomposition and sequester soil carbon in temperate forests
Autor: Jesse Sadowsky, Pamela H. Templer, Kate Lajtha, Serita D. Frey, Susan E. Crow, Knute J. Nadelhoffer, William H. McDowell, Scott V. Ollinger, Christine L. Goodale, Rakesh Minocha, Richard D. Bowden, J. LeMoine, Marc G. Kramer, A. S. Grandy, Bruce A. Caldwell, Kyle Wickings, Andrew J. Burton, Adrien C. Finzi, Edward R. Brzostek, Mary E. Martin
Publikováno v: Biogeochemistry. 121:305-316
The terrestrial biosphere sequesters up to a third of annual anthropogenic carbon dioxide emis- sions, offsetting a substantial portion of greenhouse gas forcing of the climate system. Although a number of factors are responsible for this terrestrial
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ddf15552234b5100c7c798f7a45b170c
https://doi.org/10.1007/s10533-014-0004-0
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8
Changes to particulate versus mineral-associated soil carbon after 50 years of litter manipulation in forest and prairie experimental ecosystems
Autor: Knute J. Nadelhoffer, Marc G. Kramer, Kimberly Townsend, Christopher W. Swanston, Kate Lajtha, Richard D. Bowden
Publikováno v: Biogeochemistry. 119:341-360
Models of ecosystem carbon (C) balance generally assume a strong relationship between NPP, litter inputs, and soil C accumulation, but there is little direct evidence for such a coupled relationship. Using a unique 50-year detrital manipulation exper
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13b12124f189bb9dbd84045c25188ff4
https://doi.org/10.1007/s10533-014-9970-5
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9
Differential production yet chemical similarity of dissolved organic matter across a chronosequence with contrasting nutrient availability in Hawaii
Autor: Jonathan Sanderman, Marc G. Kramer
Publikováno v: Biogeochemistry. 113:259-269
Dissolved organic matter (DOM) is a critical phase in terrestrial carbon and nutrient cycling forming the basis of many ecosystem functions, yet the primary drivers controlling its flux from organic horizons and resultant chemical composition remain
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db7be4ae0b306654b28bc2ab03301498
https://doi.org/10.1007/s10533-012-9821-1
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10
Controls on carbon storage and weathering in volcanic soils across a high-elevation climate gradient on Mauna Kea, Hawaii
Autor: Marc G. Kramer, Oliver A. Chadwick
Publikováno v: Ecology, vol 97, iss 9
Kramer, MG; & Chadwick, OA. (2016). Controls on carbon storage and weathering in volcanic soils across a high-elevation climate gradient on Mauna Kea, Hawaii. ECOLOGY, 97(9), 2384-2395. doi: 10.1002/ecy.1467. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/239178fx
Volcanic ash soils retain the largest and most persistent soil carbon pools of any ecosystem. However, the mechanisms governing soil carbon accumulation and weathering during initial phases of ecosystem development are not well understood. We examine
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35b66348202b5f86f8443b1ec29dc573
https://escholarship.org/uc/item/239178fx
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