Research plan for: Comparison of the response of mature branches and seedlings of /ital Pinus ponderosa/ to atmospheric pollution

Technical Report · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6922292

Houpis, J L.J.; Surano, K A; Cowles, S; Shinn, J H

This research proposes to investigate a potential method for quantifying the effect of air pollutants on mature trees by exposing intact mature branches using a branch exposure system. There are three main objectives. The first objective is the development and testing of a branch exposure chamber. Our second objective is to document if a branch exposure chamber is a valid research method by testing for branch autonomy in mature /ital Pinus ponderosa/. This will involve measuring how much translocated carbon a branch receives from neighboring branches and the effect of canopy position. In addition, we will be researching how ozone exposure will affect branch autonomy. These questions will determine if the degree of damage or repair in the branch enclosed in the branch exposure chamber is independent of the rest of the plant. If individual branches do not respond autonomously to the imposed stress, branch exposure chambers are not feasible alternatives for pollution exposure studies of /ital Pinus ponderosa/. 87 refs., 11 figs., 14 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6922292
• Report Number(s): UCRL-21001-88-4; ON: DE88013878
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
BIOLOGICAL EFFECTS
BIOLOGICAL STRESS
CONIFERS
DOCUMENT TYPES
EVALUATION
EXPOSURE CHAMBERS
LEAVES
MORPHOLOGICAL CHANGES
OZONE
PHYSIOLOGY
PINES
PLANTS
POLLUTION
PROGRESS REPORT
TREES