Trends and inter-relationships of ground-level ozone metrics and forest health in Lithuania

被引:32
|
作者
Araminiene, Valda [1 ]
Sicard, Pierre [2 ]
Anav, Alessandro [3 ]
Agathokleous, Evgenios [4 ,5 ]
Stakenas, Vidas [1 ]
De Marco, Alessandra [6 ]
Varnagiryte-Kabasinskiene, Iveta [1 ]
Paoletti, Elena [3 ]
Girgzdiene, Rasa [7 ]
机构
[1] Lithuanian Res Ctr Agr & Forestry, Inst Forestry, Girionys, Kaunas District, Lithuania
[2] ARGANS, Sophia Antipolis, France
[3] CNR, Sesto Fiorentino, Italy
[4] Hokkaido Res Ctr, Forestry & Forest Prod Res Inst, Sapporo, Hokkaido, Japan
[5] Hokkaido Univ, Res Fac Agr, Sapporo, Hokkaido, Japan
[6] Casaccia Res Ctr, ENEA, Santa Maria Di Galeria, RS, Italy
[7] Ctr Phys Sci & Technol, Vilnius, Lithuania
关键词
Epidemiology; Crown defoliation; Ozone; POD; Stomatal flux-based; Visible injury; PRECIPITATION INDEX SPI; SCOTS PINE DEFOLIATION; CLIMATE-CHANGE; AMBIENT OZONE; AIR-POLLUTION; TROPOSPHERIC OZONE; RISK-ASSESSMENT; METEOROLOGICAL FACTORS; EUROPEAN FORESTS; PLANT-RESPONSE;
D O I
10.1016/j.scitotenv.2018.12.092
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Lithuania is representative of maritime to continental climate, no water limitation, and moderate ground-level ozone (O-3) pollution. We investigated the trends of meteorological variables and 03 and how these environmental conditions associate with tree health from 2001 onward. Ozone metrics for forest protection, based on Accumulated 03 exposure Over a Threshold of X ppb (AOTX) or on Phytotoxic O-3 Dose over a Y threshold (PODY), were modeled at nine ICP-Forests plots over the time period 2001-2014. Tree-response indicators, i.e. crown defoliation and visible foliar O-3 injury, were assessed during annual field surveys carried out at each ICP-Forests plot over the time period 2007-2017. Mann-Kendall and Sen statistical tests were applied to estimate changes over time of meteorological variables, response indicators and O-3 metrics. Finally, the O-3 metrics were correlated (Spearman test) to the response indicators over the common period 2007-2014. Over this time period, trend analyses revealed an increasingly hotter (+0.27 degrees C decade(-1), on average) and drier climate (rainfall, -48 mm decade I). A reduction was found for O-3 annual mean (-0.28 ppb decade(-1), on average) and AOT40 (-2540 ppb.h decade(-1), on average) whereas an increase was found for PODO (+0.40 mmol m(-2) decade(-1), on average). Visible foliar O-3 injury increased (+0.17% decade(-1)), while an improvement of the crown conditions (-5.0% decade(-1)) was observed. AOT40 was significantly associated with crown defoliation while PODY and soil water content were correlated with visible foliar O-3 injucy. As visible foliar O-3 injury was negligible in all the studied species, the results suggest that moderate O-3 pollution (approximately 30 ppb as annual average) does not induce biologically significant effects on this forest vegetation under the current conditions, however the overall O-3 risk (PODO) is expected to increase in the future under a hotter and drier climate. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码:1265 / 1277
页数:13
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