中国天然源挥发性有机物排放特征及对大气二次污染物生成的影响

doi:10.13292/j.1000-4890.202511.035

生态学杂志 ›› 2025, Vol. 44 ›› Issue (11): 3694-3703.doi: 10.13292/j.1000-4890.202511.035

中国天然源挥发性有机物排放特征及对大气二次污染物生成的影响

白广坤¹，孔范龙¹，李志才²，李玲玉^1*

（¹青岛大学环境科学与工程学院，山东青岛 266071； ²潍坊市安丘生态环境监控中心，山东潍坊 262100）

出版日期:2025-11-10 发布日期:2025-11-11

Characteristic of biogenic volatile organic compound (BVOC) emissions and their impacts on the formation of atmospheric secondary pollutants in China.

BAI Guangkun¹, KONG Fanlong¹, LI Zhicai², LI Lingyu^1*

(¹College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, Shandong, China; ²Weifang Anqiu Ecological Environment Monitoring Centre, Weifang 262100, Shandong, China).

Online:2025-11-10 Published:2025-11-11

摘要/Abstract

摘要： 为探讨目前我国天然源挥发性有机物（BVOCs）排放的时空分布特征，本研究基于中分辨率成像光谱仪（MODIS）土地覆盖数据集，应用气象模式WRF和天然源排放模式MEGANv3.2对2020年我国BVOCs排放进行模拟，并使用最大增量反应活性法和气溶胶生成系数法量化了BVOCs排放对臭氧（O₃）和二次有机气溶胶（SOA）生成的影响。结果表明：2020年我国BVOCs排放总量为29.16 Tg，其中，异戊二烯、单萜烯、倍半萜烯和其他VOCs（OVOCs）分别占BVOCs年排放总量的27.54%、22.29%、3.16%和47.05%；时间分布上，春季、夏季、秋季和冬季的BVOCs排放分别占总排放量的17.49%、63.68%、16.12%、2.71%；空间分布上，BVOCs排放总体呈东南高、西北低的趋势，广西壮族自治区、广东省和湖南省的BVOCs排放量最高，占全国排放总量的11.08%、8.06%和8.02%；2020年我国BVOCs排放的O₃生成潜势（OFP）和SOA生成潜势（SOAP）总量分别为175.17和2.60 Tg，异戊二烯是OFP的主要来源，占OFP总量的48.63%；单萜烯是SOAP的主要贡献源，占SOAP总量的74.90%。

关键词: 挥发性有机物（VOCs）, 排放清单, O₃, 二次有机气溶胶（SOA）

Abstract: To explore the temporal and spatial variations of biogenic volatile organic compound (BVOCs) emissions, based on the Moderate Resolution Imaging Spectroradiometer (MODIS) land cover dataset, the meteorological model WRF and BVOC emissions estimation model MEGANv3.2 were used to simulate the BVOC emissions in China in 2020. The maximum incremental reactivity method and the fractional aerosol coefficient method were used to quantify the impacts of BVOC emissions on ozone (O₃) and secondary organic aerosol (SOA) formation. The results showed that the total BVOC emissions in China in 2020 was 29.16 Tg, with isoprene, monoterpenes, sesquiterpenes, and other VOCs (OVOCs) accounting for 27.54%, 22.29%, 3.16%, and 47.05% of the total annual emissions of BVOC, respectively. In terms of temporal distribution, BVOC emissions in spring, summer, fall, and winter accounted for 17.49%, 63.68%, 16.12%, and 2.71% of the total emissions, respectively. In terms of spatial distribution, BVOC emissions generally showed a trend of high in the southeast and low in the northwest, with the Guangxi Zhuang Autonomous Region, Guangdong Province, and Hunan Province having the highest BVOCs emissions, accounting for 11.08%, 8.06%, and 8.02% of the total emissions. The total O₃ formation potential (OFP) and SOA formation potential (SOAP) of BVOC emissions in 2020 were 175.17 and 2.60 Tg, respectively, with isoprene being the main source of OFP, accounting for 48.63% of the total OFP, and monoterpenes being the main contributor to SOAP, accounting for 74.90% of the total SOAP.

Key words: volatile organic compound (VOC), emission inventory, O₃, secondary organic aerosol (SOA)

白广坤, 孔范龙, 李志才, 李玲玉. 中国天然源挥发性有机物排放特征及对大气二次污染物生成的影响[J]. 生态学杂志, 2025, 44(11): 3694-3703.

BAI Guangkun, KONG Fanlong, LI Zhicai, LI Lingyu. Characteristic of biogenic volatile organic compound (BVOC) emissions and their impacts on the formation of atmospheric secondary pollutants in China.[J]. Chinese Journal of Ecology, 2025, 44(11): 3694-3703.

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中国天然源挥发性有机物排放特征及对大气二次污染物生成的影响

Characteristic of biogenic volatile organic compound (BVOC) emissions and their impacts on the formation of atmospheric secondary pollutants in China.

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