Climate and Ecosystem Biogeochemistry
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By Forest and Rangeland Ecosystem Science Center
November 6, 2017
This research theme advance fundamental understanding of climate-biogeochemistry interactions, with wide applicability to virtually all terrestrial ecosystems.
Precipitation and nitrogen are key drivers of carbon sequestration in temperate forests. Interactions between these factors can however lead to complex feedbacks between plants and soils that result in unanticipated shifts in carbon dynamics and greenhouse gas emissions. Carbon stores of forests in the Pacific Northwest exceed those of any other biome, anywhere on Earth, and are highly sensitive to current and future anticipated changes in precipitation.
Click here to return to FRESC Terrestrial Ecosystems Laboratory.
Below are other science projects associated with this project.
Below are publications associated with this project.
Filter Total Items: 18
Soil organic matter regulates molybdenum storage and mobility in forests Soil organic matter regulates molybdenum storage and mobility in forests
The trace element molybdenum (Mo) is essential to a suite of nitrogen (N) cycling processes in ecosystems, but there is limited information on its distribution within soils and relationship to plant and bedrock pools. We examined soil, bedrock, and plant Mo variation across 24 forests spanning wide soil pH gradients on both basaltic and sedimentary lithologies in the Oregon Coast Range...
Authors
Jade A Marks, Steven Perakis, Elizabeth K. King, Julie Pett-Ridge
Convergence of soil nitrogen isotopes across global climate gradients Convergence of soil nitrogen isotopes across global climate gradients
Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems, and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the 15 N: 14 N ratio of soil organic matter across climate gradients provide key insights into...
Authors
Joseph M. Craine, Andrew J. Elmore, Lixin Wang, Laurent Augusto, W. Troy Baisden, E. N. J. Brookshire, Michael D. Cramer, Niles J. Hasselquist, Erik A. Hobbie, Ansgar Kahmen, Keisuke Koba, J. Marty Kranabetter, Michelle C. Mack, Erika Marin-Spiotta, Jordan R. Mayor, Kendra K. McLauchlan, Anders Michelsen, Gabriela B. Nardoto, Rafael S. Oliveira, Steven S. Perakis, Pablo L. Peri, Carlos A. Quesada, Andreas Richter, Louis A. Schipper, Bryan A. Stevenson, Benjamin L. Turner, Ricardo A. G. Viani, Wolfgang Wanek, Bernd Zeller
Thresholds for protecting Pacific Northwest ecosystems from atmospheric deposition of nitrogen: state of knowledge report Thresholds for protecting Pacific Northwest ecosystems from atmospheric deposition of nitrogen: state of knowledge report
The National Park Service and U.S. Forest Service manage areas in the states of Idaho, Oregon, and Washington – collectively referred to in this report as the Pacific Northwest - that contain significant natural resources and provide many recreational opportunities. The agencies are mandated to protect the air quality and air pollution-sensitive resources on these federal lands. Human...
Authors
Tonnie Cummings, Tamara Blett, Ellen Porter, Linda Geiser, Rick Graw, Jill McMurray, Steven S. Perakis, Regina Rochefort
Biogeochemistry of a temperate forest nitrogen gradient Biogeochemistry of a temperate forest nitrogen gradient
Wide natural gradients of soil nitrogen (N) can be used to examine fundamental relationships between plant–soil–microbial N cycling and hydrologic N loss, and to test N-saturation theory as a general framework for understanding ecosystem N dynamics. We characterized plant production, N uptake and return in litterfall, soil gross and net N mineralization rates, and hydrologic N losses of...
Authors
Steven S. Perakis, Emily R. Sinkhorn
Unearthing Secrets of the Forest Unearthing Secrets of the Forest
Forests are a defining feature for large areas of the Pacific northwestern United States from northern California to Alaska. Coniferous temperate rainforests in the western Cascade and coastal mountain ranges are appreciated for their aesthetic value and abundant natural resources. Few people recognize the riches beneath the forest floor; yet, soil is a key ecosystem component that makes...
Authors
Sarah I. Beldin, Steven S. Perakis
Imprint of oaks on nitrogen availability and δ15N in California grassland-savanna: A case of enhanced N inputs? Imprint of oaks on nitrogen availability and δ15N in California grassland-savanna: A case of enhanced N inputs?
Woody vegetation is distributed patchily in many arid and semi-arid ecosystems, where it is often associated with elevated nitrogen (N) pools and availability in islands of fertility. We measured N availability and δ15N in paired blue-oak versus annual grass dominated patches to characterize the causes and consequences of spatial variation in N dynamics of grassland-savanna in Sequoia...
Authors
S.S. Perakis, C.H. Kellogg
This research theme advance fundamental understanding of climate-biogeochemistry interactions, with wide applicability to virtually all terrestrial ecosystems.
Precipitation and nitrogen are key drivers of carbon sequestration in temperate forests. Interactions between these factors can however lead to complex feedbacks between plants and soils that result in unanticipated shifts in carbon dynamics and greenhouse gas emissions. Carbon stores of forests in the Pacific Northwest exceed those of any other biome, anywhere on Earth, and are highly sensitive to current and future anticipated changes in precipitation.
Click here to return to FRESC Terrestrial Ecosystems Laboratory.
Below are other science projects associated with this project.
Below are publications associated with this project.
Filter Total Items: 18
Soil organic matter regulates molybdenum storage and mobility in forests Soil organic matter regulates molybdenum storage and mobility in forests
The trace element molybdenum (Mo) is essential to a suite of nitrogen (N) cycling processes in ecosystems, but there is limited information on its distribution within soils and relationship to plant and bedrock pools. We examined soil, bedrock, and plant Mo variation across 24 forests spanning wide soil pH gradients on both basaltic and sedimentary lithologies in the Oregon Coast Range...
Authors
Jade A Marks, Steven Perakis, Elizabeth K. King, Julie Pett-Ridge
Convergence of soil nitrogen isotopes across global climate gradients Convergence of soil nitrogen isotopes across global climate gradients
Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems, and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the 15 N: 14 N ratio of soil organic matter across climate gradients provide key insights into...
Authors
Joseph M. Craine, Andrew J. Elmore, Lixin Wang, Laurent Augusto, W. Troy Baisden, E. N. J. Brookshire, Michael D. Cramer, Niles J. Hasselquist, Erik A. Hobbie, Ansgar Kahmen, Keisuke Koba, J. Marty Kranabetter, Michelle C. Mack, Erika Marin-Spiotta, Jordan R. Mayor, Kendra K. McLauchlan, Anders Michelsen, Gabriela B. Nardoto, Rafael S. Oliveira, Steven S. Perakis, Pablo L. Peri, Carlos A. Quesada, Andreas Richter, Louis A. Schipper, Bryan A. Stevenson, Benjamin L. Turner, Ricardo A. G. Viani, Wolfgang Wanek, Bernd Zeller
Thresholds for protecting Pacific Northwest ecosystems from atmospheric deposition of nitrogen: state of knowledge report Thresholds for protecting Pacific Northwest ecosystems from atmospheric deposition of nitrogen: state of knowledge report
The National Park Service and U.S. Forest Service manage areas in the states of Idaho, Oregon, and Washington – collectively referred to in this report as the Pacific Northwest - that contain significant natural resources and provide many recreational opportunities. The agencies are mandated to protect the air quality and air pollution-sensitive resources on these federal lands. Human...
Authors
Tonnie Cummings, Tamara Blett, Ellen Porter, Linda Geiser, Rick Graw, Jill McMurray, Steven S. Perakis, Regina Rochefort
Biogeochemistry of a temperate forest nitrogen gradient Biogeochemistry of a temperate forest nitrogen gradient
Wide natural gradients of soil nitrogen (N) can be used to examine fundamental relationships between plant–soil–microbial N cycling and hydrologic N loss, and to test N-saturation theory as a general framework for understanding ecosystem N dynamics. We characterized plant production, N uptake and return in litterfall, soil gross and net N mineralization rates, and hydrologic N losses of...
Authors
Steven S. Perakis, Emily R. Sinkhorn
Unearthing Secrets of the Forest Unearthing Secrets of the Forest
Forests are a defining feature for large areas of the Pacific northwestern United States from northern California to Alaska. Coniferous temperate rainforests in the western Cascade and coastal mountain ranges are appreciated for their aesthetic value and abundant natural resources. Few people recognize the riches beneath the forest floor; yet, soil is a key ecosystem component that makes...
Authors
Sarah I. Beldin, Steven S. Perakis
Imprint of oaks on nitrogen availability and δ15N in California grassland-savanna: A case of enhanced N inputs? Imprint of oaks on nitrogen availability and δ15N in California grassland-savanna: A case of enhanced N inputs?
Woody vegetation is distributed patchily in many arid and semi-arid ecosystems, where it is often associated with elevated nitrogen (N) pools and availability in islands of fertility. We measured N availability and δ15N in paired blue-oak versus annual grass dominated patches to characterize the causes and consequences of spatial variation in N dynamics of grassland-savanna in Sequoia...
Authors
S.S. Perakis, C.H. Kellogg