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Title: Changes in the flux of carbon between plants and soil microorganisms at elevated CO{sub 2}: Physiological processes with ecosystem-level implications. Progress report

Abstract

Our ability to interpret ecosystem response to elevated atmospheric CO{sub 2} is contingent on understanding and integrating a complex of physiological and ecological processes. However, we have a limited understanding of the combined effects of changes in plant carbon (C) allocation, microbial activity, and nitrogen (N) dynamics on the long-term response of terrestrial ecosystems to elevated CO{sub 2}. Individually, these factors are potent modifiers of C and N dynamics, and an in depth understanding of their interactions should provide insight into ecosystem-level responses to global climate change. Our research is aimed at quantifying the physiological mechanisms leading to increased fine root production, microbial biomass and rates of N cycling at elevated atmospheric CO{sub 2}. More specifically, we will experimentally manipulate soil nitrogen availability and atmospheric CO{sub 2} to understand how changes in plant resource availability influence the cycling of carbon between plants and soil microorganisms.

Authors:
 [1];  [2]
  1. Michigan Univ., Ann Arbor, MI (United States). School of Natural Resources and Environment
  2. Michigan Technological Univ., Houghton, MI (United States)
Publication Date:
Research Org.:
Michigan Univ., Ann Arbor, MI (United States). School of Natural Resources and Environment
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10175084
Report Number(s):
DOE/ER/61666-1
ON: DE94017067; BR: KP0204000
DOE Contract Number:  
FG02-93ER61666
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 15 May 1994
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 59 BASIC BIOLOGICAL SCIENCES; PLANTS; METABOLISM; MICROORGANISMS; GREENHOUSE GASES; ENVIRONMENTAL IMPACTS; PROGRESS REPORT; SOILS; CARBON DIOXIDE; RESPIRATION; PHYSIOLOGY; 540120; 550500; 551000; CHEMICALS MONITORING AND TRANSPORT; PHYSIOLOGICAL SYSTEMS

Citation Formats

Zak, D R, and Pregitzer, K S. Changes in the flux of carbon between plants and soil microorganisms at elevated CO{sub 2}: Physiological processes with ecosystem-level implications. Progress report. United States: N. p., 1994. Web. doi:10.2172/10175084.
Zak, D R, & Pregitzer, K S. Changes in the flux of carbon between plants and soil microorganisms at elevated CO{sub 2}: Physiological processes with ecosystem-level implications. Progress report. United States. https://doi.org/10.2172/10175084
Zak, D R, and Pregitzer, K S. 1994. "Changes in the flux of carbon between plants and soil microorganisms at elevated CO{sub 2}: Physiological processes with ecosystem-level implications. Progress report". United States. https://doi.org/10.2172/10175084. https://www.osti.gov/servlets/purl/10175084.
@article{osti_10175084,
title = {Changes in the flux of carbon between plants and soil microorganisms at elevated CO{sub 2}: Physiological processes with ecosystem-level implications. Progress report},
author = {Zak, D R and Pregitzer, K S},
abstractNote = {Our ability to interpret ecosystem response to elevated atmospheric CO{sub 2} is contingent on understanding and integrating a complex of physiological and ecological processes. However, we have a limited understanding of the combined effects of changes in plant carbon (C) allocation, microbial activity, and nitrogen (N) dynamics on the long-term response of terrestrial ecosystems to elevated CO{sub 2}. Individually, these factors are potent modifiers of C and N dynamics, and an in depth understanding of their interactions should provide insight into ecosystem-level responses to global climate change. Our research is aimed at quantifying the physiological mechanisms leading to increased fine root production, microbial biomass and rates of N cycling at elevated atmospheric CO{sub 2}. More specifically, we will experimentally manipulate soil nitrogen availability and atmospheric CO{sub 2} to understand how changes in plant resource availability influence the cycling of carbon between plants and soil microorganisms.},
doi = {10.2172/10175084},
url = {https://www.osti.gov/biblio/10175084}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 15 00:00:00 EDT 1994},
month = {Sun May 15 00:00:00 EDT 1994}
}