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Effects of ground-level ozone (O[sub3]) pollution on the yields of rice and winter wheat in the Yangtze River Delta.
- Source :
-
Journal of Environmental Sciences (IOS Press) . May2003, Vol. 15 Issue 3, p360-362. 3p. 1 Diagram, 2 Charts, 1 Graph. - Publication Year :
- 2003
-
Abstract
- Effects of elevated 0[sub 3] on the yields of rice and winter wheat were studied by using open-top chambers(OTCs). Results showed that compared to the control treatment, 200 ppb, 100 ppb, 50 ppb treatments caused a 80.4%, 58.6% and 10.5% decrease in grain yields per winter wheat plant and a 49.1%, 26.1% and 8.2% decrease in grain yield per rice plant, respectively. According to the dose-response relation educed from OTCs experiment and the monitor data of O[sub3] concentrations in spots, it was estimated that the yield losses of rice and winter wheat resulted by O[sub3] pollution in the Yangtze River Delta region in 1999 were 0.599 million ton and 0.669 million ton, economic losses were 0.539 billion RMB Yuan and 0.936 billion RMB Yuan, respectively. [ABSTRACT FROM AUTHOR]
- Subjects :
- *RICE
*WINTER wheat
*WATER pollution
*ENVIRONMENTAL toxicology
Subjects
Details
- Language :
- English
- ISSN :
- 10010742
- Volume :
- 15
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Environmental Sciences (IOS Press)
- Publication Type :
- Academic Journal
- Accession number :
- 10846148