Search Results - "Hungate, B. A"
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A trade-off between plant and soil carbon storage under elevated CO2
Published in Nature (London) (25-03-2021)“…Terrestrial ecosystems remove about 30 per cent of the carbon dioxide (CO 2 ) emitted by human activities each year 1 , yet the persistence of this carbon sink…”
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2
Carbon and water fluxes from ponderosa pine forests disturbed by wildfire and thinning
Published in Ecological applications (01-04-2010)“…Disturbances alter ecosystem carbon dynamics, often by reducing carbon uptake and stocks. We compared the impact of two types of disturbances that represent…”
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3
Long-term impact of a stand-replacing fire on ecosystem CO2 exchange of a ponderosa pine forest
Published in Global change biology (01-08-2008)“…Ponderosa pine (Pinus ponderosa) forests of the southwestern United States are a mosaic of stands where undisturbed forests are carbon sinks, and stands…”
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4
Priorities, opportunities, and challenges for integrating microorganisms into Earth system models for climate change prediction
Published in mBio (08-05-2024)“…Climate change jeopardizes human health, global biodiversity, and sustainability of the biosphere. To make reliable predictions about climate change,…”
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5
Testing interactive effects of global environmental changes on soil nitrogen cycling
Published in Ecosphere (Washington, D.C) (01-05-2011)“…Responses of soil nitrogen (N) cycling to simultaneous and potentially interacting global environmental changes are uncertain. Here, we investigated the…”
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Nitrogen inputs and losses in response to chronic CO2 exposure in a subtropical oak woodland
Published in Biogeosciences (23-06-2014)“…Rising atmospheric CO2 concentrations may alter the nitrogen (N) content of ecosystems by changing N inputs and N losses, but responses vary in field…”
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7
Persistent effects of fire-induced vegetation change on energy partitioning and evapotranspiration in ponderosa pine forests
Published in Agricultural and forest meteorology (11-03-2009)“…We compared energy fluxes between a site converted from ponderosa pine ( Pinus ponderosa) forest to sparse grassland by a severe wildfire 10 years ago and a…”
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8
Several Components of Global Change Alter Nitrifying and Denitrifying Activities in an Annual Grassland
Published in Functional ecology (01-08-2006)“…1. The effects of global change on below-ground processes of the nitrogen (N) cycle have repercussions for plant communities, productivity and trace gas…”
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Sinks for nitrogen inputs in terrestrial ecosystems: a meta-analysis of 15N tracer field studies
Published in Ecology (Durham) (01-08-2012)“…Effects of anthropogenic nitrogen (N) deposition and the ability of terrestrial ecosystems to store carbon (C) depend in part on the amount of N retained in…”
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10
Contrasting effects of elevated CO2 on old and new soil carbon pools
Published in Soil biology & biochemistry (01-03-2001)Get full text
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11
Stimulation of grassland nitrogen cycling under carbon dioxide enrichment
Published in Oecologia (01-01-1997)“…Nitrogen (N) limits plant growth in many terrestrial ecosystems, potentially constraining terrestrial ecosystem response to elevated CO₂. In this study,…”
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Extensive Belowground Carbon Storage Supports Roots and Mycorrhizae in Regenerating Scrub Oaks
Published in Oecologia (01-05-2002)“…Portions of a regenerating scrub oak ecosystem were enclosed in open-top chambers and exposed to elevated CO₂. The distinct13C signal of the supplemental CO₂…”
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13
Effects of Elevated Carbon Dioxide on Soils in a Florida Scrub Oak Ecosystem
Published in Journal of environmental quality (01-03-2001)“…ABSTRACT The results of a 3‐yr study on the effects of elevated CO2 on soil N and P, soil pCO2, and calculated CO2 efflux in a fire‐regenerated Florida scrub…”
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14
Soil microbiota in two annual grasslands : responses to elevated atmospheric CO2
Published in Oecologia (01-09-2000)“…We measured soil bacteria, fungi, protozoa, nematodes, and biological activity in serpentine and sandstone annual grasslands after 4 years of exposure to…”
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15
Nitrogen stable isotope composition of leaves and roots of plants growing in a forest and a meadow
Published in Isotopes in environmental and health studies (01-03-2003)“…In controlled N-nutrition experiments, differences in δ 15 N composition of leaves and roots are regularly found. In this paper we report results from a survey…”
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Potential role of Thermus thermophilus and T. oshimai in high rates of nitrous oxide (N2O) production in ∼80 °C hot springs in the US Great Basin
Published in Geobiology (01-11-2011)“…Summary Ambient nitrous oxide (N2O) emissions from Great Boiling Spring (GBS) in the US Great Basin depended on temperature, with the highest flux, 67.8 ± 2.6…”
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Tree species of the central amazon and soil moisture alter stable isotope composition of nitrogen and oxygen in nitrous oxide evolved from soil
Published in Isotopes in environmental and health studies (01-03-2003)“…The use of stable isotopes of N and O in N 2 O has been proposed as a way to better constrain the global budget of atmospheric N 2 O and to better understand…”
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18
Soil microbiota in two annual grasslands: responses to elevated atmospheric CO 2
Published in Oecologia (15-09-2000)“…We measured soil bacteria, fungi, protozoa, nematodes, and biological activity in serpentine and sandstone annual grasslands after 4 years of exposure to…”
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19
The fate of carbon in grasslands under carbon dioxide enrichment
Published in Nature (London) (07-08-1997)“…The concentration of carbon dioxide (CO2) in the Earth's atmosphere is rising rapidly, with the potential to alter many ecosystem processes. Elevated CO2 often…”
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20
Evapotranspiration and soil water content in a scrub-oak woodland under carbon dioxide enrichment
Published in Global change biology (01-03-2002)“…Leaf conductance often decreases in response to elevated atmospheric CO2 concentration (Ca) potentially leading to changes in hydrology. We describe the…”
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