Simpson, D., Ashmore, M.R., Emberson, L. and Tuovinen, J.P. (2006) A comparison of two different approaches for mapping potential ozone damage to vegetation. A model study. Environmental Pollution, 146 (3). pp. 715-725. ISSN 0269-7491
Two very different types of approaches are currently in use today for indicating risk of ozone damage to vegetation in Europe. One approach is the so-called AOTX (accumulated exposure over threshold of X ppb) index, which is based upon ozone concentrations only. The second type of approach entails an estimate of the amount of ozone entering via the stomates of vegetation, the AFstY approach (accumulated stomatal flux over threshold of Y nmol m−2 s−1). The EMEP chemical transport model is used to map these different indicators of ozone damage across Europe, for two illustrative vegetation types, wheat and beech forests. The results show that exceedences of critical levels for either type of indicator are widespread, but that the indicators give very different spatial patterns across Europe. Model simulations for year 2020 scenarios suggest reductions in risks of vegetation damage whichever indicator is used, but suggest that AOT40 is much more sensitive to emission control than AFstY values.
|Institution:||The University of York|
|Academic Units:||The University of York > Environment (York)|
|Depositing User:||York RAE Import|
|Date Deposited:||27 May 2009 10:07|
|Last Modified:||27 May 2009 10:07|
|Publisher:||Elsevier Science B.V., Amsterdam|