Study on Ambient Particulate Matter Concentration of Different Forest Types in Mountain Tai Scenic Area

doi:10.11924/j.issn.1000-6850.casb2021-0183

Abstract

Abstract:

The paper aims to study the health effects of different forest types in Mountain Tai. The concentrations of TSP, PM₁₀, PM_2.5 and PM₁ in Robinia pseudoacacia forest, Pinus tabulaeformis forest and economic forest dominated by Amygdalus persica and Castanea mollissima in Mountain Tai Scenic Area were measured, and the effects of different forest types on particulate matter were analyzed. The results show that: (1) the diurnal variation trend of particulate matter concentration of four kinds of particle sizes in different forest types are basically the same in the period of 8:00-18:00, the variation curve presents a ‘V’ trend of high in the morning and low in the afternoon, the trough time of coarse particle concentration is earlier than that of fine particle concentration; (2) in the period of 8:00-18:00, the concentration of particulate matter of all forest types could reach the national second level standard; (3) there is no significant correlation between the proportion of particulate matter and the concentration of particulate matter in the stand, and there is no significant difference in the proportion of particulate matter among different stands; (4) the change of particulate matter concentration is affected by climate factors, the particulate matter concentration is negatively correlated with temperature and wind speed, and positively correlated with humidity. The proportion of evergreen conifer species such as Pinus tabulaeformis can be appropriately increased in the forest construction and management planning of Mountain Tai Scenic Area, so as to make full use of its better particulate matter barrier ability, which could play an important role in improving the pedestrian recreation environment and enhancing the health care.

Key words: forest health care, forest types, air particulate matter, microclimate, diurnal dynamics

CLC Number:

S719

Zhang Liudong, Guo Jianyao, Wan Jialong, Fu Degang, Gao Qing, Shen Weixing, Zhang Yikun, Li Chuanrong. Study on Ambient Particulate Matter Concentration of Different Forest Types in Mountain Tai Scenic Area[J]. Chinese Agricultural Science Bulletin, 2021, 37(19): 100-105.

Figures/Tables 6

References 19

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编号	林分类型	平均胸径/cm	平均树高/m	林下主要植被	郁闭度
1	油松纯林	19.75	10.15	萌生荆条、荩草、白莲蒿等	0.85
2	刺槐纯林	16.91	8.40	萌生刺槐、苔草、马唐等	0.80
3	经济林	10.32	5.56	荩草、马唐、白莲蒿、牛筋草等	0.70

编号	林分类型	平均胸径/cm	平均树高/m	林下主要植被	郁闭度
1	油松纯林	19.75	10.15	萌生荆条、荩草、白莲蒿等	0.85
2	刺槐纯林	16.91	8.40	萌生刺槐、苔草、马唐等	0.80
3	经济林	10.32	5.56	荩草、马唐、白莲蒿、牛筋草等	0.70

样地	TSP	PM₁₀	PM_2.5	PM₁
油松纯林	98.99±13.78c	47.01±7.71c	15.06±2.15c	5.06±0.92c
刺槐纯林	102.40±11.10c	51.43±8.13bc	15.98±1.89b	5.75±0.98b
经济林	110.15±10.89b	52.85±8.08b	17.59±1.74ab	6.26±0.90ab
CK	125.29±15.65a	59.89±9.31a	20.84±2.66a	7.46±1.04a

样地	TSP	PM₁₀	PM_2.5	PM₁
油松纯林	98.99±13.78c	47.01±7.71c	15.06±2.15c	5.06±0.92c
刺槐纯林	102.40±11.10c	51.43±8.13bc	15.98±1.89b	5.75±0.98b
经济林	110.15±10.89b	52.85±8.08b	17.59±1.74ab	6.26±0.90ab
CK	125.29±15.65a	59.89±9.31a	20.84±2.66a	7.46±1.04a

	温度	湿度	风速	TSP	PM₁₀	PM_2.5	PM₁
温度	1
湿度	-0.614^*	1
风速	0.251	-0.190	1
TSP	-0.323^*	0.460	-0.468^*	1
PM₁₀	-0.380^*	0.179	-0.412^*	0.461^*	1
PM_2.5	-0.691^*	0.587	-0.337^*	0.347^*	0.522^*	1
PM₁	-0.238^*	0.041	-0.380^*	0.382^*	0.343^*	0.472^*	1