Estimation of climate change influence on the sensitivity of trees in Europe to air pollution concentrations |
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| Institution: | 1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2. University of the Chinese Academy of Sciences, Beijing 100049, China;1. Institute of Solid State Physics, Bulgarian Academy of Sciences, Tzarigradsko Chaussee 72, Sofia 1784, Bulgaria;2. National Institute for Lasers, Plasma, and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania;3. National Institute of Materials Physics, 105 bis Atomistilor Street, 077125 Magurele, Romania;4. Institute of Physical Chemistry, “Ilie Murgulescu”, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania;1. Department of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea;2. Department of Mechanical Engineering, Graduate of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea;1. Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China;2. State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China;3. CSIRO Manufacturing, Private Bag 10, Clayton, VIC 3168, Australia;4. Harbin Institute of Technology (Shenzhen), HIT Campus, Xili University Town, Shenzhen 518055, China |
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| Abstract: | This paper describes the results of combining several simple models to assess the changes in plant sensitivity to direct effects of gaseous air pollutants that result from changes in climatic conditions. This research has been carried out within the framework of a project on the integrated assessment of regional air pollution and climate change in Europe (AIR-CLIM). The modulation of plant sensitivity to gaseous pollutants has been studied using a model of stomatal conductance that simulates the flow of water vapor from the atmosphere to the plant interior through the stomata. The model has been applied to Norway spruce (Picea abies L.) and European beech (Fagus sylvatica L.). The critical atmospheric concentration levels for SO2 and NOx adopted in international environmental norms have been modified to maintain in different climate scenarios a concentration level inside the plant equivalent to the critical limit in 1990. These simulated critical concentrations are compared with the predicted atmospheric concentrations. Our work indicates that the response can be very different for the two types of forests and in different regions. In general, climate change sensitivity increases in boreal areas and decreases in temperate areas due to temperature and water stress. If the air pollution levels are in the predicted ranges, the problems are less severe now than in 1990, but the cumulative stress will still be significant. |
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