On the basis of ozone concentrations reported in rural monitoring networks, the highest concentrations in agricultural regions are in parts of the United States of America, Mediterranean Europe, Japan, the Republic of Korea, China and India. [...] National and international ozone standards for vegetation Under the International Cooperative Programme on Effects of Air Pollution on Natural Vegetation and Crops (ICP Vegetation)2 of the LRTAP Convention, scientists from Europe and the United States have developed and agreed on critical levels of ozone for the Modelling and Mapping Manual of the Convention. [...] • Support the inclusion of ozone in crop process-based modelling by further studying the dynamics of ozone detoxification during the growing season and the effects of ozone on photosynthesis, leaf senescence and assimilate partitioning. [...] 15 The document includes the following: • A description of sources and concentrations of ozone in agricultural areas together with information on the most common impact assessment metrics (section 2); • An analysis of the different crop processes that are affected by ozone and how these combined impacts lead to reductions in both the quantity and quality of crop yield (section 3); • Current knowle. [...] Rates of ozone formation in the troposphere depend on the amount of sunlight and the relative concentrations of the precursors.
Authors
- Pages
- 148
- Published in
- Switzerland
