干旱半干旱区夏季绿化树种挥发性有机物标准排放量的测定

doi:10.16258/j.cnki.1674-5906.2021.06.007

生态环境学报 ›› 2021, Vol. 30 ›› Issue (6): 1168-1176.DOI: 10.16258/j.cnki.1674-5906.2021.06.007

干旱半干旱区夏季绿化树种挥发性有机物标准排放量的测定

王剑¹(), 包海¹^,²^,^*(), 李达毅¹, 刘智远¹, 杨娜¹

1.内蒙古师范大学化学与环境科学学院,内蒙古呼和浩特 010022
2.内蒙古自治区环境化学重点实验室,内蒙古呼和浩特 010022

收稿日期:2021-01-22 出版日期:2021-06-18 发布日期:2021-09-10
通讯作者: * E-mail: baohai@imnu.edu.cn
作者简介:王剑（1995年生）,男,硕士研究生,主要从事生物源挥发性有机化合物的研究。E-mail: 1164240738@qq.com
基金资助:
国家自然科学基金项目(21667021);内蒙古自治区自然科学基金项目(2018MS02010);内蒙古师范大学研究生创新基金项目(CXJJS19120)

Emissions of Volatile Organic Compounds from Landscape Trees in Arid and Semi-Arid Region During Summer

WANG Jian¹(), BAO Hai¹^,²^,^*(), LI Dayi¹, LIU Zhiyuan¹, YANG Na¹

1. College of Chemistry and Environment Science, Inner Mongolia Normal University, Hohhot 010022, China
2. Inner Mongolia Key Laboratory of Environmental Chemistry, Hohhot 010022, China

Received:2021-01-22 Online:2021-06-18 Published:2021-09-10

摘要/Abstract

摘要：

生物源挥发性有机物（Biogenic Volatile Organic Compounds,BVOC）对城市臭氧污染起着重要作用,为准确估算BVOC对城市臭氧污染的贡献,研究BVOC标准状态（叶温T=303 K,PAR (Photosynthetically Active Radiation)=1000 μmol∙m^-2∙s^-1)下的排放量极为重要。于2018年8月、2019年9月和2020年9月,以干旱半干旱区的呼和浩特市作为采样地点,选择4种针叶树种为研究对象,采用动态箱采集-TD-GC/MS分析法对干旱半干旱区夏季绿化树种BVOC排放量进行了定性定量分析,并依据实验数据确定了BVOC推算模式G93模式中最佳的经验系数β值,最终测定了夏季4种绿化树种BVOC标准状态下的排放量。结果如下：（1）干旱半干旱区主要绿化树种杜松（Juniperus rigida）、油松（Pinus tabulaeformis）、白皮松（Pinus bengeana)、云杉（Picea asperata）标准状态下排放量最佳的β值分别为0.136、0.10、0.11、0.064 K^-1;（2）杜松、油松、白皮松、云杉等排放单萜烯标准状态下的排放量分别为1.85、0.57、0.09、0.08 μg∙g^-1∙h^-1;其异戊二烯标准状态下的排放量分别为0.05、0.02、0、0.03 μg∙g^-1∙h^-1;（3）估算不同气候条件下植物BVOC排放量时,通过改变G93模式中β值较准确推定不同区域树种标准状态下的排放量,进而较准确评价不同区域BVOC排放量对臭氧污染的贡献。

关键词: 干旱半干旱区, 绿化树种, BVOC, 标准排放量, G93模式

Abstract:

Biogenic volatile organic compounds (BVOCs) play an important role in urban ozone pollution. To accurately estimate the contribution of BVOCs to urban ozone pollution, it is very important to study the emissions of BVOCs in standard state (Photosynthetically Active Radiation, PAR 1000 μmol∙m^-2∙s^-1, Temperature 303 K). To determine the standard emission of BVOCs from landscape trees in arid and semi-arid region, a method (dynamic box collection-TD-GC / MS analysis) was designed for qualitative and quantitative analysis, and the best β value in G93 model was determined based on the experimental data, and the BVOCs standard emissions of different landscape trees was estimated. The results showed that: (1) The best β values for the main landscape trees-Juniperus rigida, Pinus tabulaeformis, Pinus bengeana and Picea asperata were estimated at 0.136, 0.10, 0.11 and 0.064 K^-1, respectively. (2) Monoterpenes emissions from Juniperus rigida, Pinus tabulaeformis, Pinus bengeana and Picea asperata were 1.85, 0.57, 0.09 and 0.08 μg∙g^-1∙h^-1, respectively, and the isoprene emissions were 0.05, 0.02, 0 and 0.03 μg∙g^-1∙h^-1, respectively. And (3) when applying the model to BVOCs emissions under different climatic conditions, we could accurately estimate the contribution of BVOCs emissions to ozone pollution by changing the β value in G93 model.

Key words: arid and semi-arid region, landscape trees, Biogenic volatile organic compounds (BVOCs), standard emissions, G93 model

中图分类号:

Q948
X13

王剑, 包海, 李达毅, 刘智远, 杨娜. 干旱半干旱区夏季绿化树种挥发性有机物标准排放量的测定[J]. 生态环境学报, 2021, 30(6): 1168-1176.

WANG Jian, BAO Hai, LI Dayi, LIU Zhiyuan, YANG Na. Emissions of Volatile Organic Compounds from Landscape Trees in Arid and Semi-Arid Region During Summer[J]. Ecology and Environment, 2021, 30(6): 1168-1176.

图/表 9

参考文献 47

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树种 Code	采样日期 Sampling time	BVOC排放量 BVOC emissions/(μg·g^-1·h^-1)		N*	温度Temperature/℃				PAR/(μmol·m^-2·s^-1)	RH/%
树种 Code	采样日期 Sampling time	异戊二烯Isoprene	单萜烯Monoterpenes	N*	温度Temperature/℃				PAR/(μmol·m^-2·s^-1)	RH/%
杜松 Juniperus rigida	2018-08-25	0	1.10‒4.76	12	23.51‒25.64				11.03‒16.93	71.31
	2018-08-26	0‒0.03	0.39‒0.92	12	20.75‒29.62				51.20‒82.86	70.75
	2018-08-27	0.01‒0.03	1.44‒1.67	12	23.55‒28.32				50.17‒75.28	74.29
	总均值 Mean	0‒0.03	0.98‒2.45	36	22.60‒27.86				37.47‒58.36	65.55
油松 Pinus tabulaeformis	2019-09-02	0.04‒0.16	0.04‒0.47	12	26.84‒55.27				62.58‒142.22	39.93
	2019-09-03	0.05‒0.06	0.05‒0.11	12	21.69‒35.36				25.63‒150.47	33.43
	2019-09-04 2020-09-05 2020-09-06 2020-09-07	0.01‒0.02 0.02‒0.19 0.02‒0.05 0.02‒0.07	0.03‒0.18 0.06‒0.62 0.01‒0.12 0.01‒0.17	12 12 12 12	23.41‒31.09 21.35‒37.02 23.44‒36.82 25.34‒40.89				20.39‒133.29 52.91‒968.63 74.89‒1277.26 70.81‒1198.36	29.33 59.80 44.68 32.54
	总均值 Mean	0.04‒0.12	0.03‒0.28	72	23.68‒39.41				51.20‒645.04	39.95
白皮松 Pinus bungeana	2019-09-05	0‒0.01	0.04‒0.10	12	22.65‒33.20				26.77‒527.01	54.93
	2019-09-06	0‒0.08	0.01‒0.21	12	17.64‒35.66				30.36‒130.15	61.28
	2019-09-07	0‒0.11	0.01‒0.08	12	17.67‒33.66				28.06‒274.33	59.82
	2020-09-16	0	0.01‒0.26	12	21.00‒35.96				162.16‒1987.76	18.4
	2020-09-17	0	0.02‒0.71	12	22.41‒42.61				93.64‒1536.60	30.59
	2020-09-18	0‒0.02	0.01‒0.96	12	23.38‒42.83				71.93‒1914.29	41.95
	总均值 Mean	0‒0.04	0.02‒0.39	72	22.41‒40.47				68.82‒1061.69	30.32
云杉 Picea asperata	2020-09-05	0‒0.16	0.02‒0.25	12			30.48‒37.37		636.87‒1442.69	31.04
	2020-09-06	0‒0.12	0.02‒0.54	12			28.36‒39.35		113.20‒1977.75	22.70
	2020-09-07	0.02‒0.08	0.02‒0.09	12	30.52‒36.72			276.60‒118.17		20.93
	总均值 Mean	0.01‒0.12	0.02‒0.29	36		29.79‒37.81		342.22‒1179.54		24.89

树种 Code	采样日期 Sampling time	BVOC排放量 BVOC emissions/(μg·g^-1·h^-1)		N*	温度Temperature/℃				PAR/(μmol·m^-2·s^-1)	RH/%
树种 Code	采样日期 Sampling time	异戊二烯Isoprene	单萜烯Monoterpenes	N*	温度Temperature/℃				PAR/(μmol·m^-2·s^-1)	RH/%
杜松 Juniperus rigida	2018-08-25	0	1.10‒4.76	12	23.51‒25.64				11.03‒16.93	71.31
	2018-08-26	0‒0.03	0.39‒0.92	12	20.75‒29.62				51.20‒82.86	70.75
	2018-08-27	0.01‒0.03	1.44‒1.67	12	23.55‒28.32				50.17‒75.28	74.29
	总均值 Mean	0‒0.03	0.98‒2.45	36	22.60‒27.86				37.47‒58.36	65.55
油松 Pinus tabulaeformis	2019-09-02	0.04‒0.16	0.04‒0.47	12	26.84‒55.27				62.58‒142.22	39.93
	2019-09-03	0.05‒0.06	0.05‒0.11	12	21.69‒35.36				25.63‒150.47	33.43
	2019-09-04 2020-09-05 2020-09-06 2020-09-07	0.01‒0.02 0.02‒0.19 0.02‒0.05 0.02‒0.07	0.03‒0.18 0.06‒0.62 0.01‒0.12 0.01‒0.17	12 12 12 12	23.41‒31.09 21.35‒37.02 23.44‒36.82 25.34‒40.89				20.39‒133.29 52.91‒968.63 74.89‒1277.26 70.81‒1198.36	29.33 59.80 44.68 32.54
	总均值 Mean	0.04‒0.12	0.03‒0.28	72	23.68‒39.41				51.20‒645.04	39.95
白皮松 Pinus bungeana	2019-09-05	0‒0.01	0.04‒0.10	12	22.65‒33.20				26.77‒527.01	54.93
	2019-09-06	0‒0.08	0.01‒0.21	12	17.64‒35.66				30.36‒130.15	61.28
	2019-09-07	0‒0.11	0.01‒0.08	12	17.67‒33.66				28.06‒274.33	59.82
	2020-09-16	0	0.01‒0.26	12	21.00‒35.96				162.16‒1987.76	18.4
	2020-09-17	0	0.02‒0.71	12	22.41‒42.61				93.64‒1536.60	30.59
	2020-09-18	0‒0.02	0.01‒0.96	12	23.38‒42.83				71.93‒1914.29	41.95
	总均值 Mean	0‒0.04	0.02‒0.39	72	22.41‒40.47				68.82‒1061.69	30.32
云杉 Picea asperata	2020-09-05	0‒0.16	0.02‒0.25	12			30.48‒37.37		636.87‒1442.69	31.04
	2020-09-06	0‒0.12	0.02‒0.54	12			28.36‒39.35		113.20‒1977.75	22.70
	2020-09-07	0.02‒0.08	0.02‒0.09	12	30.52‒36.72			276.60‒118.17		20.93
	总均值 Mean	0.01‒0.12	0.02‒0.29	36		29.79‒37.81		342.22‒1179.54		24.89

树种 Tree species	BVOC/(μg∙g^-1∙h^-1)		有效采样数据 Valid sampling data	文献值 The literature data/(μg∙g^-1∙h^-1)
树种 Tree species	异戊二烯 Isoprene	单萜烯类 Monoterpenes	有效采样数据 Valid sampling data	异戊二烯 Isoprene	单萜烯类 Monoterpenes
杜松 Juniperus rigida	0.05	1.85	36	‒	‒
油松 Pinus tabulaeformis	0.02	0.57	72	0.1^b, 0.4±0.1^a	3^b, 19.0±4.5^a
白皮松 Pinus bengeana	0	0.09	72	0^a	1.2^a
云杉 Picea asperata	0.03	0.08	36	0.32^c, 0.3‒1.8^d	0.5^c, 0.2‒7.8^d

树种 Tree species	BVOC/(μg∙g^-1∙h^-1)		有效采样数据 Valid sampling data	文献值 The literature data/(μg∙g^-1∙h^-1)
树种 Tree species	异戊二烯 Isoprene	单萜烯类 Monoterpenes	有效采样数据 Valid sampling data	异戊二烯 Isoprene	单萜烯类 Monoterpenes
杜松 Juniperus rigida	0.05	1.85	36	‒	‒
油松 Pinus tabulaeformis	0.02	0.57	72	0.1^b, 0.4±0.1^a	3^b, 19.0±4.5^a
白皮松 Pinus bengeana	0	0.09	72	0^a	1.2^a
云杉 Picea asperata	0.03	0.08	36	0.32^c, 0.3‒1.8^d	0.5^c, 0.2‒7.8^d

干旱半干旱区夏季绿化树种挥发性有机物标准排放量的测定

Emissions of Volatile Organic Compounds from Landscape Trees in Arid and Semi-Arid Region During Summer

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