Simon Valérie, Dumergues Laurent, Ponche Jean-Luc, Torres Liberto
Laboratoire Chimie Energie et Environnement-Ecole Nationale Supérieure des Ingénieurs en Arts Chimiques et Technologiques de Toulouse, 118 route de Narbonne, 31077 Toulouse Cedex, France.
Sci Total Environ. 2006 Dec 15;372(1):164-82. doi: 10.1016/j.scitotenv.2006.08.019. Epub 2006 Sep 29.
An inventory describing the fluxes of volatile organic compounds (VOCs), isoprene and monoterpenes, and other VOCs (OVOCs) from the biosphere to the atmosphere, has been constructed within the framework of the ESCOMPTE project (fiEld experimentS to COnstrain Models of atmospheric Pollution and Transport of Emissions). The area concerned, located around Berre-Marseilles, is a Mediterranean region frequently subject to high ozone concentrations. The inventory has been developed using a fine scale land use database for the year 1999, forest composition statistics, emission potentials from individual plant species, biomass distribution, temperature and light intensity. The seasonal variations in emission potentials and biomass were also taken into account. Hourly meteorological data for 1999 were calculated from ALADIN data and these were used to predict the hourly isoprene, monoterpene and OVOC fluxes for the area on a 1 kmx1 km spatial grid. Estimates of annual biogenic isoprene, monoterpene and OVOC fluxes for the reference year 1999 were 20.6, 38.9 and 13.3 kt, respectively, Quercus pubescens, Quercus ilex, Pinus halepensis and garrigue vegetation are the dominant emitting species of the area. VOC emissions from vegetation in this region contribute approximately 94% to the NMVOC (non-methane volatile organic compounds) of natural origin and are of the same order of magnitude as NMVOC emissions from anthropogenic sources. These results complete the global ESCOMPTE database needed to make an efficient strategy for tropospheric ozone reduction policy.
在ESCOMPTE项目（“大气污染与排放传输模型约束的实地实验”）框架内，构建了一份描述挥发性有机化合物（VOCs）、异戊二烯和单萜以及其他VOCs（OVOCs）从生物圈到大气的通量清单。所涉及的区域位于贝雷-马赛附近，是一个地中海地区，经常出现高臭氧浓度。该清单是利用1999年的精细土地利用数据库、森林组成统计数据、单个植物物种的排放潜力、生物量分布、温度和光照强度编制而成的。还考虑了排放潜力和生物量的季节性变化。1999年的每小时气象数据由ALADIN数据计算得出，并用于在1 km×1 km的空间网格上预测该区域每小时的异戊二烯、单萜和OVOC通量。1999年参考年的生物源异戊二烯、单萜和OVOC年通量估计分别为20.6、38.9和13.3 kt，柔毛栎、冬青栎、阿勒颇松和灌丛植被是该区域的主要排放物种。该区域植被的VOC排放对天然来源的非甲烷挥发性有机化合物（NMVOC）贡献约94%，与人为源的NMVOC排放处于同一数量级。这些结果完善了制定对流层臭氧减排政策有效策略所需的全球ESCOMPTE数据库。
