skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Simulating the physiological basis of tree ring responses to environmental changes

Abstract

The detection of possible forest growth responses to changes in atmospheric CO/sub 2/ or air pollutants is very difficult by statistical analysis of tree ring chronologies, and a complementary modeling approach has been initially tested. In this new approach, a linked set of mechanistic transport models of carbon, water, and chemical dynamics in soil-plant-litter systems (UTM) is used to generate a matrix of simulated annual stem-wood increment and winter carbon storage values for a range of degree day, water stress, and atmospheric CO/sub 2/ concentrations. These values represent potential tree growth responses as determined by hourly time-step physiological processes. The matrix is accessed by a forest succession model (FORET) according to selected degree day and water stress values or by use of actual site data. These potential growth responses are modified to realized annual increments according to the competition algorithms of the succession simulator using yearly time steps. A 12% increase in stem-wood production was predicted for an oak-hickory (Quercus-Carya spp.) forest in eastern Tennessee by the UTM for both a change in atmospheric CO/sub 2/ from 260 to 340 and from 340 to 600 ..mu..L/L.

Authors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
6607501
Report Number(s):
CONF-8804148-5
ON: DE89004168
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Conference
Resource Relation:
Conference: Conference on forest growth: process modeling of responses to environmental stress, Gulf Shores, AL, USA, 19 Apr 1988; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 59 BASIC BIOLOGICAL SCIENCES; 09 BIOMASS FUELS; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CARBON DIOXIDE; BIOLOGICAL EFFECTS; PLANT GROWTH; FORECASTING; TREE RINGS; COMPARATIVE EVALUATIONS; AIR POLLUTION; CARBON DIOXIDE FIXATION; CELLULOSE; COMBUSTION PRODUCTS; EARTH ATMOSPHERE; F CODES; FORESTS; MATHEMATICAL MODELS; SIMULATION; TISSUE DISTRIBUTION; TREES; CARBOHYDRATES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; COMPUTER CODES; DISTRIBUTION; GROWTH; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PLANTS; POLLUTION; POLYSACCHARIDES; SACCHARIDES; 500200* - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989); 510200 - Environment, Terrestrial- Chemicals Monitoring & Transport- (-1989); 550501 - Metabolism- Tracer Techniques; 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989); 560300 - Chemicals Metabolism & Toxicology

Citation Formats

Luxmoore, R J, Tharp, M L, and West, D C. Simulating the physiological basis of tree ring responses to environmental changes. United States: N. p., 1988. Web.
Luxmoore, R J, Tharp, M L, & West, D C. Simulating the physiological basis of tree ring responses to environmental changes. United States.
Luxmoore, R J, Tharp, M L, and West, D C. 1988. "Simulating the physiological basis of tree ring responses to environmental changes". United States.
@article{osti_6607501,
title = {Simulating the physiological basis of tree ring responses to environmental changes},
author = {Luxmoore, R J and Tharp, M L and West, D C},
abstractNote = {The detection of possible forest growth responses to changes in atmospheric CO/sub 2/ or air pollutants is very difficult by statistical analysis of tree ring chronologies, and a complementary modeling approach has been initially tested. In this new approach, a linked set of mechanistic transport models of carbon, water, and chemical dynamics in soil-plant-litter systems (UTM) is used to generate a matrix of simulated annual stem-wood increment and winter carbon storage values for a range of degree day, water stress, and atmospheric CO/sub 2/ concentrations. These values represent potential tree growth responses as determined by hourly time-step physiological processes. The matrix is accessed by a forest succession model (FORET) according to selected degree day and water stress values or by use of actual site data. These potential growth responses are modified to realized annual increments according to the competition algorithms of the succession simulator using yearly time steps. A 12% increase in stem-wood production was predicted for an oak-hickory (Quercus-Carya spp.) forest in eastern Tennessee by the UTM for both a change in atmospheric CO/sub 2/ from 260 to 340 and from 340 to 600 ..mu..L/L.},
doi = {},
url = {https://www.osti.gov/biblio/6607501}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: