DIRECT EFFECTS OF ATMOSPHERIC SULFATE DEPOSITION ON VEGETATION

被引：8

作者：

CHEVONE, BI ^{[1
]}

HERZFELD, DE ^{[1
]}

KRUPA, SV ^{[1
]}

CHAPPELKA, AH ^{[1
]}

机构：

[1] UNIV MINNESOTA, ST PAUL, MN 55108 USA

来源：

JOURNAL OF THE AIR POLLUTION CONTROL ASSOCIATION | 1986年 / 36卷 / 07期

关键词：

BIOMASS - SULFUR COMPOUNDS - Environmental Impact;

D O I：

10.1080/00022470.1986.10466117

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Acid sulfate aerosol (500 mu /m**3) had no effect on soybean or pinto bean after a single 4-h exposure. However, visible injury and chlorophyll loss occurred when plants were sequentially exposed to acid aerosol and ozone (380 mu g/m**3) for 4 h. In yellow poplar seedlings exposed to ozone (200 mu g/m**3), sulfur dioxide (210 mu g/m**3) and simulated rain solutions (pH 5. 6, 4. 3 and 3. 0) for 6 weeks, root dry weight, leaf area increase, mean relative growth rate and unit leaf rate decreased linearly with pH in ozone-treated plants. However, unit leaf rate and mean relative growth rate increased linearly in response to sulfur dioxide as solution acidity increased. Ambient wet and dry sulfate concentrations appear insufficient to directly impact vegetation.

引用

页码：813 / 815

页数：3

共 24 条

[1] MEASUREMENT OF ATMOSPHERIC AEROSOLS AND PHOTOCHEMICAL PRODUCTS AT A RURAL SITE IN SW ONTARIO [J].