臭氧乾沉降之土壤界面質傳阻抗分析研究-實驗與理論
Date Issued
2001-07-31
Date
2001-07-31
Author(s)
張能復
DOI
892211E002082
Abstract
This study aims to design a dry
deposition chamber and to measure
ozone depletion over the Taichung field
soil. This study seeks to verify the
phenomena by an experimental and
mathematical model. It is demonstrated
that interfacial mass transfer resistances
of ozone dry deposition involve reactive
resistance (RSr) and kinetic resistance
(RSk). The model profiles are smaller
than the observed data and good
correlation. It reveals the chemical
reaction (O3+NO®NO2+O2) to produce
the reactive resistance, it verifies that the
interfacial mass transfer resistances are
viable resistances and depend on
nitrogen oxide emission and soil
temperature. The reactive resistancedecreases exponentially with increasing
soil temperature, and the kinetic
resistance decreases linearly with
increasing soil temperature. It shows
that the interfacial mass transfer
resistances (RS) are reduced with
increasing NO emission or soil
temperature. Results are consistent with
thermodynamics and reaction kinetics.
In this study that soil resistances are
smaller than plant and water resistances.
It reveals that soil resistances are
variable resistances and major factor for
ozone dry deposition. Ozone dry
deposition over agricultural soil causes
conversion of nitrogen oxide (NO) to
nitrogen dioxide (NO2) and influencing
the air quality. To set up the soil
resistances are important to the air
quality modeling and regulation in
Taiwan.
Subjects
Denitrifying
dry deposition
chamber
chamber
dry deposition curve
mass
conservation
conservation
parallel resistances
SDGs
Publisher
臺北市：國立臺灣大學環境工程學研究所
Type
report
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